display DDR type memory (RAM) installed free utility

to find out which type of memory installed you can use this free utility:
1.download CPUZ from >here
2.Run and open memory tab :

listen podcast audio book faster (timesaving tip) with mplayer

First download mplayer player from http://www.mplayerhq.hu/design7/dload.html

mplayer.exe  -cache 1024  -speed 1.77  %1\*.*

Other Mplayer command line samples

play shuffle-music from directory

mplayer.exe  -cache 1024  -shuffle  %1\*.*

Play shuffle winamp/text file list

mplayer.exe  -cache 1024  -shuffle  -playlist %1

more...

DateTime to string with milliseconds

string resTime = DateTime.Now.ToString("yyyy.MM.dd HH:mm:ss:ffff");
Console.WriteLine(resTime);

more...

C# linq transfer data between linq object and business layer object sample

public class myClass
{
            public int RecordID { get; set; }
            public string Field1 { get; set; }
}

public void GetDataAndCallBusinessMethod()
{
            using (DBDataContext db = new DBDataContext)
                      {
                        IEnumerable<myClass> Recs =
                                from tab in db.table
                                select new myClass
                                {
                                        RecordID = tab.RecordID,
                                        Field1 = tab.Field1
                                };
                        BusinessLayer.Businessmethod(Recs);
                        }
}

c# initialize new hashtable

Hashtable ht = new Hashtable() {
                {"key1", "value1"},
                {"key2", "value2"}
        };

C# example:how to get version/created time of assembly

1, We need function like this :

  public string GetServerInfo(Assembly _assembly)
    {
        StringBuilder r = new StringBuilder();
        try
        {
            r.AppendLine("Version:" + _assembly.GetName().Version.ToString());
            r.Append("Build: " + System.IO.File.GetLastWriteTime(_assembly.Location).ToString("dd/MM/yyyy HH:mm"));
        }
        catch (Exception ex)
        {
            Logger.prn(ex);
        }
        return r.ToString();
    }

Then we can call it like this :

Assembly _assembly = Assembly.GetExecutingAssembly();
string info= GetServerInfo(_assembly);

mysql how to select records with unicode characters

following select returning these records:
SELECT * FROM candidate WHERE CHAR_LENGTH(first_name)<>LENGTH(first_name);

mysql and php to fix character encoding

*  call mb_internal_encoding("UTF-8") at the head of my PHP scripts
*  MySQL tables all have DEFAULT CHARSET=utf8  > COLLATE=utf8_unicode_ci
*  call mysql_set_charset('utf8') immediately after I connect to the  DB with mysql_connect().
*  call header('Content-Type: text/html; charset=utf-8') before  outputting anything to the browser.
*  specify <meta http-equiv="Content-Type" content="text/html;  charset=utf-8"/> in the HEAD of my HTML.
*  FORM tags all have accept-charset="UTF-8".

vim commands

:g/search-string/norm @h  
runs a macro recorded in h for every match of search-string

Vim-style movement:
'h' 'j' 'k' 'l' for movement (Up, Down, Left, Right)
'gg' End
'G' Home
'0' Beginning of line
'$' End of Line
'H' Top of the Screen
'M' Middle of the screen
'L' Bottom of the screen

windows using
:split command or the ^w commands:

^wn - new window

^ws - horizontal split

^wv - vertical split

^wr - rotate windows

^ww/^wW - move to the next/previous window

^w= - make all windows equal size

^wc - close the active window

Load controls in asp.net dynamically

1.Add placeholder to .aspx

<asp:Panel ID="PlaceHolderPanel" runat="server">
   </asp:Panel>

2. add control loading code to codebehind :

string AlreadyLoaded=null;
private void loadControl(string ctr){
       if (!string.IsNullOrEmpty(ctr) && AlreadyLoaded!=ctr ) {
           Control ctrl = LoadControl(ctr);
           ctrl.ID="ctr1";
           PlaceHolderPanel.Controls.Clear();
           PlaceHolderPanel.Controls.Add(ctrl);
           ControlName = ctr;
           AlreadyLoaded=ctr;
       }

   }

protected void Page_Load(object sender, EventArgs e){
       loadControl("~/Controls/mycontrol.ascx");
}

There are limitations for loaded controls , one of them using onPreRender rather then Page_load:

// 1.call all functions in prerender only
protected override void OnPreRender(EventArgs e){
       SetFilterValues();
       Bind();
     base.OnPreRender(e);
}

C# how to use iterator

//  create iterator method 

      public IEnumerable<decimal?> BucketIterator(Accounts_basic a ) {
            int cycle = 0;
            for (int i=7 ; i > 0 ; i--){

                    switch (i) {
                 case 1:yield return a.dd_15;break;

                         case 2 :yield return a.dd_30; break;

                         case 3:yield return a.dd_60; break;

                         case 4:yield return a.dd_90; break;

                         case 5 :yield return a.dd_120; break;

                         case 6:yield return a.dd_150; break;

                         case 7:yield return a.dd_180; break;

                 default : yield break;

                }

            }

// use iterator method as follows
 foreach (decimal? amount in BucketIterator(accounts_basic)) {
        // use amount here 
}

Stored User Names and Passwords

to retrieve a list of Stored User Names and Passwords do:
C:>rundll32.exe keymgr.dll, KRShowKeyMgr

Windows can store your logon information for network locations and Web sites. To add an entry, click Add. To edit an existing entry, select it, and then click Properties.

is already mapped in workspace or removing other's working space

The path C:\Projects is already mapped in workspace PC123;DOMAIN\USER

tf workspaces /computer:PC123 /owner:* /format:detailed

And – sure enough, it looks like there’s another workspace for a different user profile – with the same PC name (PC123).
tf workspaces /computer:PC123 /owner:* /format:detailed /server:http://tfs:8080
================================
Workspace: PC123
Owner : *ME*
Computer : PC123
Comment :
Server : tfs.domain
Working folders:
====================================
Workspace: PC123
Owner : *SOMEONE-ELSE*
Computer : PC123
Comment :
Server : tfs.domain

Working folders:
$/AAA: C:\Projects
$/AAA/BBB/CCC: C:\Projects\AAA\BBB\CCC
Not sure how/why this has happened – perhaps a duplicate PC-NAME ?

Anyway – here’s the command to REMOVE the baaad workspace – clear it out all and start again.

tf workspace /delete PC123;other-user /server:http://tfs:8080
A deleted workspace cannot be recovered.
Workspace ‘PC123′ on server ‘http://tfs.8080′ has 0 pending change(s).
Are you sure you want to delete the workspace? (Yes/No) Y

vim commands

:e . Открыть встроенный файл-менеджер
:Sex Разбить окно и открыть встроенный файл менеджер
:browse e Графический файл-менеджер
:ls Список буферов
:cd .. Перейти в родительскую директорию
:args Список открытых файлов

Web Service set amount of Concurrent Connections

add this to web.config file:

<system.net>
<connectionManagement>
      <addaddress="*"maxconnection="40"/>
</connectionManagement>
</system.net>

locked file, how to release file in use

To find out which application is using a file in Windows and to release/delete/remove/overwrite file do following:
use processexplorer and search the handles (Menu/Find/Find Handle (Crtls+F))for the file you want.
This way you can easily find which process is having a handle to your file.
Then do right click + 'Close Handle' to release locked file.

try catch python: error handling in python

simple error handling in python:

try:
.... your code here ....
except Exception, e:
        print "Error",i,e

List sorting by SQL ASC/DESC Extender

using System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Reflection;
using System.Collections.Generic;
using System.Linq.Expressions;

public static class Extenders
    {
        public static List<T> Sort<T>(this List<T> source, string sortExpression)
        {
            string[] sortParts = sortExpression.Split(' ');
            var param = Expression.Parameter(typeof(T), string.Empty);
            try
            {
                var property = Expression.Property(param, sortParts[0]);
                var sortLambda = Expression.Lambda<Func<T, object>>(Expression.Convert(property, typeof(object)), param);

                if (sortParts.Length > 1 && sortParts[1].Equals("desc", StringComparison.OrdinalIgnoreCase))
                {
                    return source.AsQueryable<T>().OrderByDescending<T, object>(sortLambda).ToList<T>();
                }
                return source.AsQueryable<T>().OrderBy<T, object>(sortLambda).ToList<T>();
            }
            catch (ArgumentException)
            {
                return source;
            }
        }
    }  

linq select into class list

let's say we have following class:

  public class GridCell {
        public string page_name{get;set;}
        public string link_code { get; set; }
        public int page_state { get; set; }
        public int landing_pages_id { get; set; }

       }

and want to create list of these classes , to bind them to grid for example :

         LandingPagesDataContext lpdc = new LandingPagesDataContext();
                var query = from p in lpdc.landing_pages
                            select new { p.page_name, p.link_code, p.page_state, p.landing_pages_id };
                bind(query.Select(p=>new GridCell{page_name = p.page_name, link_code = p.link_code, page_state = p.page_state, landing_pages_id = p.landing_pages_id }).ToList<GridCell>());

find lines from one file into another

How to find lines from one file into another ?
here is sample script showing lines from "find.txt" file those are into "findinto.txt"

common.py find.txt findinto.txt

import os
import re
import sys

fileHandle = open (sys.argv[1])
linesToPatch = fileHandle.readlines()
f = open(sys.argv[2])

for aline in f:
    for rline in linesToPatch:
       p=re.compile(rline.strip())
       if p.search(aline.strip()):
           print aline

SQL Next business Day Function

-- get next business day  
-- assumption: first day of the week is Sunday  
CREATE FUNCTION NextBusinessDay
               (@date DATETIME)
RETURNS VARCHAR(12)
AS
  BEGIN
    DECLARE  @date1 DATETIME,
             @m     INT
    SELECT @date1 = @date,           @m = 0
    WHILE @m < 1
    BEGIN
      SET @date1 = DATEADD(DD,1,@date1)

/*  ** the following line checks for non-business days (1 and 7)  
 ** IF your business days are different, change the following line to   
 ** comply with your schedule   
 */
      IF DATEPART(DW,@date1) NOT IN (1,7)
        BEGIN
          SET @m = @m + 1
        END
    END

    RETURN CAST(@date1 AS VARCHAR(12))
  END

JQuery Autocomplete plugin , nice and easy to implement

nice and easy to implement JQuery Autocomplete plugin

javascript:unescape/escape: decode/encode URL characters

<script type="text/javascript"> 
alert (unescape('Hello%20World'));
alert (escape('Hello World'));
</script>

Microsoft.AnalysisServices.AdomdClient.AdomdErrorResponseException

When trying to connect to Analysis Services 2005 I was getting this error:

Microsoft.AnalysisServices.AdomdClient.AdomdErrorResponseException: Either the user, NT
AUTHORITY\NETWORK SERVICE, does not have access to ...

I have solved this problem by :
1.logging with "Microsoft SQL Server Management Studion" to Analysis Server
2.expanded "Roles"
3.created new "admin" role with Administration priveleges
4.added "Network Service" as Member of this role.

return table from stored procedure

To return table from stored procedure:
declare value as table in sql and fill it from stored procedure by insert..execute like in this code below:

 DECLARE @Accounts1 AS TABLE
        (
         customer NUMERIC(9, 0),
         sub TINYINT,
         tp1 VARCHAR(100)
        )


insert into @Accounts1
execute usp_AccountDifferentialReportSelector @Did,@CycID

to get data from datasource declared in aspx

 public bool OrderExists(int order_index) {
        DataView dv1 = (DataView)CategoriesDataSource.Select(new DataSourceSelectArguments());
        foreach( DataRow d in dv1.Table.Rows){
            if ((int)d["order_index"] == order_index) {
                gvMerchantCategoriesLabel.Text = "Update Not Successful, Order Index Already exists";
                gvMerchantCategoriesLabel.Style.Add("color", "#FF0000");
                return true;
            }

        }
        return false;
    }

C# find text in .net grid Rows

    public bool OrderExists(int order_index)
    {
        foreach (GridViewRow r in gvMerchantCategories.Rows)
        {
            int ord1 = 0;
            if (int.TryParse(r.Cells[2].Text, out ord1) && ord1 == order_index)
            {
                gvMerchantCategoriesLabel.Text = "Update Not Successful, Order Index Already exists";
                gvMerchantCategoriesLabel.Style.Add("color", "#FF0000");
                return true;
            }
        }

    }

replacing non-english symbols with equivalent (removing Diacritics)

namespace Remove {
using System;
using System.Text;
using System.Globalization;
  class Remove {
    [STAThread]
    static void Main(string[] args) {
      foreach(string st in args) {
        Console.WriteLine(RemoveDiacritics(st));
      }
    }

    static string RemoveDiacritics(string stIn) {
      string stFormD = stIn.Normalize(NormalizationForm.FormD);
      StringBuilder sb = new StringBuilder();

      for(int ich = 0; ich < stFormD.Length; ich++) {
        UnicodeCategory uc = CharUnicodeInfo.GetUnicodeCategory(stFormD[ich]);
        if(uc != UnicodeCategory.NonSpacingMark) {
          sb.Append(stFormD[ich]);
        }
      }

      return(sb.ToString().Normalize(NormalizationForm.FormC));
    }
  }
}

sql select comma delimited field as one row

SELECT TOP 10
hphone + ', ' as [text()]
from
person
for
xml path('')

vb6 command line options

dot net resources

IoC: Ruby Unity Castle Spring.net Autofac NInject StructureMap

Mock-фреймворки: Typemock Isolator Rhino Mocks NMock Moq

VS расширения: ReSharper BooLangStudio Nemerle IronPython Studio SPVisualDev

Цвет: Schemes Vibrant Ink

Разбор: Reflector NDepend

TDD: Gallio (MbUnit) NUnit TestDriven.net NBehave

Source control: Google Code Codeplex GitHub SourceForge

секция .Net на Хабрахабр блоги на GotDotNet ITCommunity

CodeBetter CodeProject StackOverflow

NT AUTHORITY\NETWORK SERVICE does not have write access

When you have created virtual directory of your application created in .Net2.0 and application is not running.
Even everything is fine in web.config, still it is giving error in web.config file.

Error :- The current identity (NT AUTHORITY\NETWORK SERVICE) does not have write access to 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files'.

Solution is :
goto command prompt then navigate to directory
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727

Now run this command

aspnet_regiis -ga "NT AUTHORITY\NETWORK SERVICE"

call webservice from sql function

here is function allowing you to do so:
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE FUNCTION [dbo].[Call_WebService] (@inId AS VARCHAR(50))
RETURNS XML
AS BEGIN

DECLARE @Object AS INT ;
DECLARE @ResponseText AS VARCHAR(8000) ;
DECLARE @Url AS VARCHAR(MAX) ;

SELECT @Url = 'http://myserver/CCRequestProxy.aspx?RequestID=' + @inId

EXEC sp_OACreate 'MSXML2.XMLHTTP', @Object OUT ;
EXEC sp_OAMethod @Object, 'open', NULL, 'get', @Url, 'false'
EXEC sp_OAMethod @Object, 'send'
EXEC sp_OAMethod @Object, 'responseText', @ResponseText OUTPUT
EXEC sp_OADestroy @Object
EXEC sp_OAStop ;


--load into Xml
DECLARE @XmlResponse AS XML ;
SELECT @XmlResponse = CAST(@ResponseText AS XML)
RETURN @XmlResponse

END

disable cache on asp page

add following instruction on top of the page
<%@ OutputCache Location="None" VaryByParam="None" %>

Relevance in Fulltext Search

Create Fulltext index first:
CREATE FULLTEXT INDEX indx_text
ON attachment (text)

Add relevance field for select:
SELECT MATCH('text') AGAINST ('financial') as Relevance FROM attachment WHERE MATCH
('text ') AGAINST('+financial +bank' IN
BOOLEAN MODE) HAVING Relevance > 0.2 ORDER
BY Relevance DESC

full search documentation

SQL update with join : update table with count from another table

let's say we have two tables connected like this:
SELECT a.saved_list_id, COUNT(b.saved_list_entry_id)
FROM saved_list a
LEFT OUTER JOIN saved_list_entry b ON (a.saved_list_id = b.saved_list_id)
GROUP BY a.saved_list_id;

so update will be looking like follows:
update saved_list p JOIN saved_list_entry c ON p.saved_list_id = c.saved_list_id
SET p.`number_entries` = (SELECT count(saved_list_entry_id) as number_entries
FROM saved_list_entry c where c.saved_list_id = p.saved_list_id)

Team Foundation Server (TFS) - How to see history of whole project or see last changed files

How to see history of whole project in Team Foundation Server (TFS) or see last changed files:
-Locate Team Foundation Server Client -tf.exe file, usually located into
"c:\Program Files\Microsoft Visual Studio 8\Common7\IDE\TF.exe"
-Run this from console inside project:
"c:\Program Files\Microsoft Visual Studio 8\Common7\IDE\TF.exe" history /recursive *
it will return list of changesets,click on changeset to view list of files

alter table with check constraint

SET ANSI_PADDING OFF
GO
ALTER TABLE [dbo].[web_contracts]  WITH NOCHECK ADD  CONSTRAINT [CK_web_contracts] CHECK NOT FOR REPLICATION (([payment_source]=(3) AND len(isnull([eft_routing_number],''))=(9)))
GO
ALTER TABLE [dbo].[web_contracts] CHECK CONSTRAINT [CK_web_contracts]
GO
EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'Routing number is not specified' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'web_contracts', @level2type=N'CONSTRAINT',@level2name=N'CK_web_contracts'

ASP.NET/csharp:FileUpload inside AJAX Update panel

To make it working it's required :
1.Created interface:

public interface ITriggerable {
void RegisterPostbackTrigger(Control  parent,Control trigger);
}

2.implement this interface on page containing ajax update panel:

public void RegisterPostbackTrigger(Control  parent,Control button){
       PostBackTrigger trigger = new PostBackTrigger();
       trigger.ControlID =((Button) button).UniqueID;
       UpdatePanel1.Triggers.Add(trigger);
}

3.Add button inside of control as trigger:

protected override void OnInit(EventArgs e){
 base.OnInit(e);
    ((ITriggerable)this.Page).RegisterPostbackTrigger(this, btnRename);
}

WebRequest Exception 401: The remote server returned an error: (401) Unauthorized.

it's required to add default credentials:
request.Credentials = CredentialCache.DefaultCredentials;
See this post for complete source.

Charp (C#):validate http links

  public bool ImageExists(string url) {
        Uri urlCheck = new Uri(url);

        WebRequest request = WebRequest.Create(urlCheck);
        request.Credentials = CredentialCache.DefaultCredentials;

        request.Timeout = 15000;

        WebResponse response;
        try {
            //get URL web response
            response = request.GetResponse();
            return true;
        }
        catch (Exception){
            return false; //url does not exist
        }
    }

JQuery working inside UpdatePanel

To make jquery works inside Update panel you have to add handler to updatepanel reload with restorig jquery bindings :

1. create jquery binding function , to specific links for example:

function re_init(p1,p2){
        $('a[name=modal]').click(function(e) {
        // Add your jquery bindings here 
        // ...
        //
        }
}

2 on document ready add handling UpdatePanel reload

$(document).ready(function() {
  re_init(null,null);
  // add re-initialisation after update panel reloading 
  Sys.WebForms.PageRequestManager.getInstance().add_endRequest(re_init);
});

authentication in active directory

using System.Security;
        public User Login(string login_name, string password){
            ICredValidator cv = new LdapCredValidator(); //LanCredValidator();
            User u = new User(conn);
            if (cv.ValidateCred("MY-DOM", login_name, password))
            {
                // validation sucess
            }else Throw("Login failed for {0}",login_name);
            return u;
        }

active directory - get computer lists

 public void AD_ComputerList()
        {
            DirectoryEntry entry = new DirectoryEntry("LDAP://my-dom");
            DirectorySearcher mySearcher = new DirectorySearcher(entry);
            mySearcher.Filter = ("(objectClass=computer)");
            Console.WriteLine("Listing of computers in the Active Directory");
            Console.WriteLine("============================================");
            foreach(SearchResult resEnt in mySearcher.FindAll())
            {
                Console.WriteLine("Name: {0}", resEnt.GetDirectoryEntry().Name.ToString());
            }
            Console.WriteLine("=========== End of Listing =============");

        }

C# how to get current windows login

  public void WinIdentity() {
           System.Security.Principal.WindowsIdentity i = System.Security.Principal.WindowsIdentity.GetCurrent();
            Console.WriteLine("name: {0}, token: {1}", i.Name, i.Groups[0].ToString());
            Assert.IsNotNull(i);
        }

webservice logging incoming/outgoing data

add following to web.config under system.web

        <httpModules>
                        <add name="RequestResponseLogger" type="LoggingFilter, LoggingFilter"/>
                </httpModules>
                <customErrors mode="Off"/>
        </system.web>
        <microsoft.web.services2>
                <diagnostics>
                        <trace enabled="true" input="D:\Logs\in.txt" output="D:\Logs\out.txt"/>
                </diagnostics>
        </microsoft.web.services2>
</configuration>

php function for dot.net webservice submission

<?
function web_service($serv,$plain_data){
        $curl_handle = curl_init();
        curl_setopt($curl_handle, CURLOPT_URL, "https://myserver.com/myService.asmx/".$serv);
        curl_setopt($curl_handle, CURLOPT_HEADER, 1);
        curl_setopt($curl_handle, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($curl_handle, CURLOPT_SSL_VERIFYPEER, 0);
        curl_setopt($curl_handle, CURLOPT_SSL_VERIFYHOST, 0);
        curl_setopt($curl_handle, CURLOPT_POST, 1);
        curl_setopt($curl_handle, CURLOPT_POSTFIELDS, $plain_data);
        $response = curl_exec ($curl_handle) or die ( "There has been an error connecting");
        #echo $response;
        curl_close ($curl_handle);
        $response= strstr($response, '<?xml version="1.0" encoding="utf-8"?>');
        $re = str_replace('&gt;','>',str_replace('&lt;','<',$response));
        $re1= str_replace('<string xmlns="http://tempuri.org/">',"<string>",$re);

        return $re1;
}


function web_method($f,$u){

        $data="Subscriber=".$f['studid']."&Affiliate=".$u['referral']
        $re1= msi_service("MyMethodName1",$data);
        $xml = simplexml_load_string($re1);
        $result = $xml->xpath("/string"); // <- parsing result 
        foreach($result as $result_code) {
                return $result_code;
        }
        return $re1;
}
?>
 

here is post how to configure web service to allow remote post/get submission

rework dynamic sql into stored procedure with optional parameters

CREATE PROCEDURE TestProc
(
@Param1 varchar(50) = NULL,
@Param2 varchar(50) = NULL,
@Param3 varchar(50) = NULL
)
AS
SELECT
*

FROM
TestTable

WHERE
((@Param1 IS NULL) OR (col1 = @Param1)) AND
((@Param2 IS NULL) OR (col2 = @Param2)) AND
((@Param3 IS NULL) OR (col3 = @Param3))

c# property with using cache (expiration added)

    public static int CacheDyration = 10;
    /// <summary>
    /// Cached  Merchant table 
    /// </summary>
    public static Hashtable MerchantHash
    {
        get
        {
            Hashtable retValue = null;
            // Check if cache has Merchant saved
            if (HttpContext.Current.Cache["MerchantHash"] != null)
            { // Return cached version
                retValue = (Hashtable)HttpContext.Current.Cache["MerchantHash"];
            }
            else
            {
                // initializing  new instance,  you can change this initialization  with using BLL classes
                MerchantTableAdapter da = new MerchantTableAdapter();
                retValue = Hashmaker.Hash(da.GetData(), "merchant_id", "merchantname");
                if (retValue.Count > 0)
                {
                    HttpContext.Current.Cache.Insert("MerchantHash", retValue, null, Cache.NoAbsoluteExpiration, new TimeSpan(0, CacheDyration, 0));
                }

            }
            return retValue;
        }

        set
        { // Check if item is already in there
            if (HttpContext.Current.Cache["MerchantHash"] != null)
            {
                // Remove old item
                HttpContext.Current.Cache.Remove("MerchantHash");
            } // Place a new one
            HttpContext.Current.Cache.Insert("MerchantHash", value, null, Cache.NoAbsoluteExpiration, new TimeSpan(0, CacheDyration, 0));
        }
    }

clear cache in ASP.NET VB.NET

Private Sub ClearCache()
        For Each CacheKey As DictionaryEntry In Cache
            If CacheKey.Key.GetType.Equals(GetType(System.String)) Then
                Dim MyKey As String = CacheKey.Key
                    Cache.Remove(CacheKey.Key)
            End If
        Next
End Sub

more...

regular expression to grab html tag

<htmltag\b[^>]*>(.*?)</htmltag>

Duplicate filename:7z:creating archive files from list

you have list of files from differen folders in text file.

To create zip archive use this command:
"c:\Program Files\7-Zip\7z.exe" a  -tzip archive.zip  @c:\listfile.txt

when you get error Duplicate filename:  because of file with the same name in different folders, remove drive name  from list file.

System.Data.StrongTypingException

to fix this exception in strong-type dataset use method IsNull method before reading value to avoid this exception.

in C# it will be like :
if (!logins[0].Isincorrect_attempt_dateNull())
{
 incor_pass_hours_ago = DateTime.Now.Subtract((DateTime)logins[0].incorrect_attempt_date).TotalHours;
}

fix "SqlDateTime overflow. Must be between 1/1/1753 12:00:00 AM and 12/31/9999 11:59:59 PM."

Use System.Data.SqlTypes.SqlDateTime.MinValue.Value  insted DateTime.MinValue and System.Data.SqlTypes.SqlDateTime.MaxValue.Value instead DateTime.MinValue.

to transfer file by pscp (putty scp) to sftp (secured ftp) server:

source file: source1.txt
server ip : 61.155.5.15
server shh port : 2222
destination file:d\target1.txt

command line: 
pscp  -l al -P 2222 source1.txt user@67.155.5.15:d\target1.txt

pscp help:

PuTTY Secure Copy client
Release 0.57
Usage: pscp [options] [user@]host:source target
       pscp [options] source [source...] [user@]host:target
       pscp [options] -ls [user@]host:filespec
Options:
  -p        preserve file attributes
  -q        quiet, don't show statistics
  -r        copy directories recursively
  -v        show verbose messages
  -load sessname  Load settings from saved session
  -P port   connect to specified port
  -l user   connect with specified username
  -pw passw login with specified password
  -1 -2     force use of particular SSH protocol version
  -C        enable compression
  -i key    private key file for authentication
  -batch    disable all interactive prompts
  -unsafe   allow server-side wildcards (DANGEROUS)
  -V        print version information
  -sftp     force use of SFTP protocol
  -scp      force use of SCP protocol

python post example

 
from httplib2 import Http
from urllib import urlencode

url =  'http://de.gigajob.com/req.ax'
#body = {'USERNAME': 'foo', 'PASSWORD': 'bar'} 
#headers = {'Content-type': 'application/x-www-form-urlencoded'}
body={'xajax':'ajax_get_sgd_html_display' ,'xajaxargs':'<xjxobj><e><k>searchword</k><v>C%23</v></e><e><k>zip</k><v></v></e><e><k>adtype</k><v>offer</v></e><e> <k>distance</k><v>25</v></e><e><k>country</k><v>all</v></e><e><k>language</k><v>de</v></e><e><k>page</k><v>1</v></e><e><k>sort</k><v>age</v></e><e><k>location</k><v></v></e><e><k>age</k><v>999</v></e></xjxobj>' ,'xajaxargs':'1' ,'xajaxargs':'1' ,'xajaxr':'1234400546535'}
h = Http()
response, content = h.request(url,'POST',urlencode(body))
print response
print content

C# regexps to correct reflector dissamble:

correct property setting:
.set_(?'n'.*?)\((?'v'.*?)\);

.${n}=${v};

easy_install.exe for Python 2.6 on Windows

get ez_setup.py and setuptools-0.6c9-py2.6.egg.
type: python ez_setup.py setuptools-0.6c9-py2.6.egg and that should get setuptools installed.
2. Now that you have setuptools installed, in your Python 2.6 directory there is a directory called Scripts. If you go to that directory (C:\Python26\Scripts on the systems I worked on) you’ll see easy_install.exe.

aspnet_compiler.exe [HttpCompileException]: External component has thrown an exception.

I was getting this error during the pre-compilation of website:
[HttpCompileException]: External component has thrown an exception.

the cause of the problem was incorrect references  in web.config.

Here's rebuild.bat file for precompilation website without opening Visual Studio 2008:

C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe -v "/beta " -p "beta\\" -u -f -d -fixednames "PrecompiledWeb\beta\\" -errorstack  
sndrec32.exe /play /embedding c:\tools\saundz\phone_1.wav 
pause

compilation of about 500 classes taking about 15 min , sndrec32 string for notifying that build complete.

python indentation fixing:by removing tabs

to remove tabs and correct indentation use this command in VIM:

:set expandtab
:retab!

variables in dot net regular expressions

search pattern :  \s*<Merchant>\s*<ID>(?'d'.*?)</ID>
replace pattern:
NF:${d}.xml
<Merchant>
        <ID>${d}</ID>


As you can see d is variable declared in  search pattern and used into replace:
Also here is interpretation of search pattern :
Options: dot matches newline; free-spacing

Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.) «\s*»
   Between zero and unlimited times, as many times as possible, giving back as needed (greedy) «*»
Match the characters “<Merchant>” literally «<Merchant>»
Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.) «\s*»
   Between zero and unlimited times, as many times as possible, giving back as needed (greedy) «*»
Match the characters “<ID>” literally «<ID>»
Match the regular expression below and capture its match into backreference with name “d” «(?'d'.*?)»
   Match any single character «.*?»
      Between zero and unlimited times, as few times as possible, expanding as needed (lazy) «*?»
Match the characters “</ID>” literally «</ID>»

mask credit card by regular expressions (regexp) in (Regex.Replace/vb.net)

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim regFind As String = "<AccountNumber>(?'f'\d?)\d\d\d\d\d\d\d\d\d\d(?'e'.*?)</AccountNumber>"
        Dim regReplace As String = "<AccountNumber>${f}**${e}</AccountNumber>"
        TextBox1.Text = Regex.Replace(TextBox1.Text, regFind, regReplace)
End Sub

dot.net 3.5 from visual studio 2008

sql xml remove tag (sql server 2008)

DECLARE @x XML;
SELECT @x = N'<?xml version="1.0" ?>
<Address>
<Street>1 MICROSOFT WAY</Street>
<City>REDMOND</City>
<State>WA</State>
<Zip>98052</Zip>
<Country>US</Country>
<Website></Website>
</Address>';
SET @x.modify('
delete /Address/Website
');
SELECT @x;

get list of installed software on computer

with Powershell

:

$Keys = Get-ChildItem HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall
$Items = $keys |foreach-object {Get-ItemProperty $_.PsPath}
foreach ($item in $items)
{
echo  $item.Displayname
echo  $item.DisplayVersion
echo  $item.Publisher
echo  $item.InstallDate
echo  $item.HelpLink
echo  $item.UninstallString
}

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remove blinking on aspx page reloading

add these two lines to page source to eliminate this problem :

    <meta http-equiv="Page-Enter" content="blendTrans(Duration=0.2)"/>
    <meta http-equiv="Page-Exit" content="blendTrans(Duration=0.2)"/>

this will solve page blinking problem for internet explorer.
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remove banners in google chrome

I'm going to try privoxy. this little proxy server that allows to remove ads by  specifying patterns.

Actually firefox Adblock Plus  did perfect job,but chrome is much fester .

Probably it's possible to modify privoxy (it's open source) for working with banners lists like EasyList (USA)
http://easylist.adblockplus.org/adblock_rick752.txt
And add some new pages to privoxy, that allows to add new patterns on fly.

Or just wait when adblock will be ported on Google Chrome :)
what do you think?

Convert WMA Into MP3 (free/no-installation)

      0. download and unpack these apps : MPlayer and lame
      1. Convert the WAV file by this command:
         mplayer -vo null -vc dummy -af resample=44100 -ao pcm "Song 1.wma"

2. convert into MP3 the result of step 1 (audiodump.wav).
lame audiodump.wav "Song 1.mp3"

3. delete large wav file created in step 1(audiodump.wav)

dump dataset structure in debug/runtime

EmployeeDetail_Dataset.WriteXml("c:\temp.xml")
now xml reflecting the dataset will be in c:\temp.xml

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dot.net application or dot.net dll location VB.NET/C#

here's few ways to get application/dot net dll location :

System.AppDomain.CurrentDomain.BaseDirectory
System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase

for ASP.NET u can use following :
Server.MapPath(".")

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Javascript log/debug window for client-site logging

1.Add this code to page or include

var okno;
okno=window.open("", "Debug", "left=0,top=0,width=300,height=700,scrollbars=yes," +"status=yes,resizable=yes");
function log(msg){
        okno.document.write("<br>"+msg);
}

use log('my message') function in javascript to show data in window during javascript execution.
more...

Regular Expressions - Strong Password Validation

string r =
        @"(?x)" +                           // Ignore spaces within regex expression, for readability
        @"^"    +                           // Anchor at start of string
        @"(?=.* ( \d | \p{P} | \p{S} ))" +  // String must contain a digit or punctuation char or symbol
        @".{6,}";                           // String must be at least 6 characters in length

Console.WriteLine (Regex.IsMatch ("abc12", r));
Console.WriteLine (Regex.IsMatch ("abcdef", r));
Console.WriteLine (Regex.IsMatch ("ab88yz", r));

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Grouping with LINQ to SQL filtered

// The following groups purchases by year, then returns only those groups where
// the average purchase across the year was greater than $1000:

from p in Purchases
group p.Price by p.Date.Year into salesByYear
where salesByYear.Average (x => x) > 1000
select new
{
        Year       = salesByYear.Key,
        TotalSales = salesByYear.Count(),
        AvgSale    = salesByYear.Average(),
        TotalValue = salesByYear.Sum()
}

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LINQ Join vs SelectMany:what is faster?

Customer[] customers = Customers.ToArray();
Purchase[] purchases = Purchases.ToArray();

var slowQuery =
        from c in customers
        from p in purchases where c.ID == p.CustomerID
        select c.Name + " bought a " + p.Description;

var fastQuery =
        from c in customers
        join p in purchases on c.ID equals p.CustomerID
        select c.Name + " bought a " + p.Description;

slowQuery.Dump ("Slow local query with SelectMany");
fastQuery.Dump ("Fast local query with Join");

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convert sources into html /free

To convert sources files into html by using vim type following in command line :

for one file:
vim -e +:TOhtml +w +qa file.c

or create .bat file for converting whole directory of source files:
for %%f in (%1\*.cs) do (vim -e +:TOhtml +w +qa "%%f")

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Generate XML with LINQ (C#)

var customers =
        new XElement ("customers",
                from c in Customers
                select
                        new XElement ("customer", new XAttribute ("id", c.ID),
                                new XElement ("name", c.Name),
                                new XElement ("buys", c.Purchases.Count)
                        )
                );

customers.Dump();

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command line xml parser ( free, open source)

located @ http://xmlstar.sourceforge.net/

XMLStarlet Toolkit: Command line utilities for XML
Usage: xml []  []
where  is one of:
  ed    (or edit)      - Edit/Update XML document(s)
  sel   (or select)    - Select data or query XML document(s) (XPATH, etc)
  tr    (or transform) - Transform XML document(s) using XSLT
  val   (or validate)  - Validate XML document(s) (well-formed/DTD/XSD/RelaxNG)
  fo    (or format)    - Format XML document(s)
  el    (or elements)  - Display element structure of XML document
  c14n  (or canonic)   - XML canonicalization
  ls    (or list)      - List directory as XML
  esc   (or escape)    - Escape special XML characters
  unesc (or unescape)  - Unescape special XML characters
  pyx   (or xmln)      - Convert XML into PYX format (based on ESIS - ISO 8879)
  p2x   (or depyx)     - Convert PYX into XML
 are:
  --version            - show version
  --help               - show help
Wherever file name mentioned in command help it is assumed
that URL can be used instead as well.

Type: xml  --help  for command help

XMLStarlet is a command line toolkit to query/edit/check/transform
XML documents (for more information see http://xmlstar.sourceforge.net/)

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how to change header in blogger

U can create script like that :

<script type="text/javascript">
var container = document.getElementById("header-inner");
container.innerHTML ="http://sourcefield.blogspot.com";
</script>

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Service has zero application (non-infrastructure) endpoints FIX

During installation of the webservice I discovered inresting error:

WebHost failed to process a request.
 Sender Information: System.ServiceModel.Activation.HostedHttpRequestAsyncResult/25773083
 Exception: System.ServiceModel.ServiceActivationException: The service '/Business/Service.svc' cannot be activated due to an exception during compilation.  
 The exception message is: Service 'Business.WebService.Service' has zero application (non-infrastructure) endpoints. This might be because no configuration file was found for your application, or because no service element matching the service name could be found in the configuration file, or because no endpoints were defined in the service element.. 
 System.InvalidOperationException: Service 'Business.WebService.Service' has zero application (non-infrastructure) endpoints. This might be because no configuration file was found for your application, or because no service element matching the service name could be found in the configuration file, or because no endpoints were defined in the service element.
   at System.ServiceModel.Description.DispatcherBuilder.EnsureThereAreNonMexEndpoints(ServiceDescription description)
   at System.ServiceModel.Description.DispatcherBuilder.InitializeServiceHost(ServiceDescription description, ServiceHostBase serviceHost)
   at System.ServiceModel.ServiceHostBase.InitializeRuntime()
   at System.ServiceModel.ServiceHostBase.OnBeginOpen()
   at System.ServiceModel.ServiceHostBase.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.ServiceHostingEnvironment.HostingManager.ActivateService(String normalizedVirtualPath)
   at System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath)
   --- End of inner exception stack trace ---
   at System.ServiceModel.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result)
 Process Name: w3wp
 Process ID: 1680

This is more IIS issue, webserver has default directory that was deleted and currently not exists.
That caused the problem,so after changing default directory all started working.

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vb6 or asp xsl transform (transformNode)

Private Function Transform(xml_string, xsl_file) As String
    Dim xsl, XML
    Set xsl = CreateObject("Microsoft.XMLDOM")
    Set XML = CreateObject("Microsoft.XMLDOM")
    xsl.Load (xsl_file)
    XML.LoadXml (xml_string)
    Transform = XML.transformNode(xsl)
End Function

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nbsp in XSL correct

<xsl:text disable-output-escaping="yes">&amp;nbsp;</xsl:text>

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LINQ:check if IEnumerable is empty (CSharp/C#)

public static void NonEmpty<T>(IEnumerable<T> source,string m){
            if (source == null) Throw(m);
            if (!source.Any()) Throw(m);
        }

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Method has no supported translation to SQL.

Here's post regarding this error:
Local sequence cannot be used in LINQ...
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Local sequence cannot be used in LINQ to SQL implementation of query operators except the Contains() operator

System.NotSupportedException: Local sequence cannot be used in LINQ to SQL implementation of query operators except the Contains() operator

Method has no supported translation to SQL

The cause of these errors may be mismatch b/w server and client side properties.
Or b/w properties those have SQL presentation and that hasn't:

   private IQueryable<Invoice> AttachInvoices(LinqDataObjectsDataContext dc,string sInvoices) {
            List<InvArg> ral = new List<InvArg>();
            ral = (List<InvArg>)CXMLConv.Load(sInvoices, ral.GetType(), "ArrayOfInvArg") ;
            IEnumerable<InvArg> ra = ral;

            var inv = from i in dc.Invoices
                      join r in ra on i.InvoiceID  equals r.InvoiceID
                      select i;
            return inv;
        }

must be modified to :

 private List<Invoice> AttachInvoices(LinqDataObjectsDataContext dc,string sInvoices) {
            List<InvArg> ral = new List<InvArg>();
            ral = (List<InvArg>)CXMLConv.Load(sInvoices, ral.GetType(), "ArrayOfInvArg");

            long[] s=ral.Select(p => p.InvoiceID).ToArray();


            var inv = from i in dc.Invoices
                       where  s.Contains(i.InvoiceID)
                      select i;

            return inv.ToList();
        }

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display html on vb6 form

1.add Microsoft Internet controls to link reference.
2.Place control on form, I used 'Browser' as control name.
use this function to display :

Private Sub ShowHtml(s As String)
    Browser.Navigate ("about:blank")
   ' Dim doc  As IHTMLDocument2
    Set boxDoc = Browser.Document
    boxDoc.Write (s)
    boxDoc.Close
End Sub

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play sound in console or bat file

to play sound in console or bat file use this line
sndrec32.exe /play /embedding c:\i386\Blip.wav

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run regsvr32 command for all files in folder

you can create simple bat file with one line
--regdir--
for %%f in (%1\*.ocx) do (regsvr32 /s "%%f")
--end of regdir--
then run >: regdir c:\mylibs
that might be useful if you want to run command for all files

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allow opening chm file from network drives

add this key to registry, or copy-paste it into reg file execute:
---Begin Reg FILE--
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HTMLHelp\1.x\ItssRestrictions]
"MaxAllowedZone"=dword:00000001
---End Reg FILE--

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blog plugin to firefox

just found nice plugin to firefox , that allow post to blogger.com.
can be installed from
here.

content length quota (8192) has been exceeded fix

to fix this error in Acessing WCF service:

The formatter threw an exception while trying to deserialize the message:
Error in deserializing body of request message for operation 'FreezeInvoices'.
The maximum string content length quota (8192) has been exceeded while reading XML data.
This quota may be increased by changing the MaxStringContentLength property on the XmlDictionaryReaderQuotas object used when creating the XML reader. Line 1,

do folowing :
1.Open web.config file and add these content under system.serviceModel:

<system.serviceModel>

 <bindings>
     <basicHttpBinding>
         <binding  name="Binding1"  closeTimeout="00:11:00" openTimeout="00:11:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" allowCookies="false"  hostNameComparisonMode="StrongWildcard" maxBufferSize="9965536" maxBufferPoolSize="9524288" maxReceivedMessageSize="9965536" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" >
         <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
         <security mode="None" />
       </binding>
     </basicHttpBinding>
 </bindings>

2.Find this line and add bindingConfiguration :

<endpoint address="" binding="basicHttpBinding" contract="Business.WebService.IService"   bindingConfiguration="Binding1">

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python setdefault in indexing text file

indx={}
with open(filename) as f:
    for n,line in enumerate(f):
        for word in line.split():
         indx.setdefault(word,[]).append(n)
#emit in alphabetical order 
for word in sorted(indx):
    print "%s:" % word
    for n in indx[word]: print n,
    print

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python property & dunder special methods

#property sample 
class blah(object)
 def getter(self):
    return ...
 def setter(self,value):
    ....
 name=property(getter,setter)
inst=blah()

print inst.name #calls inst.getter()
inst.name=23 #like call inst.setter(23)

python special methods (dobleundescore aka dunder):
__new__ __init__ __del__ # ctor,init, finalize
__repr__ __str__ __int__ # convert
__lt__ __gt__ __eq__ # compare
__add__ __sub__ __mul__ # arithmetic
__call__ __hash__ __nonzero__ # ()
__getattr__ __setattr__ __delattr__ #
__getitem__ __setitem__ __delitem__ #
__len__ __iter__ __contains__ #
__get__ __set__ __enter__ __exit__
here's sample of using special methods

class fib(object):
    def __init__(self): self.i=self.j=1
    def __iter__(self): return self
    def next(self):
        r,self.i=self.i,self.j
        self.j+=r
        return r

for r in fib():
    print r,
    if r > 100: break
    1 1 2 3 5 8 13 21 34 55 89 144

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python functions generators closures decorators

Types of arguments:

#default values: 
    def sub1( a,b='default',i=0)

named arguments 
def info(spacing=15, object=odbchelper): 

tuple (args,params) 
    def sumsq2(*a): return sum(x*x for x in a)

dictionary 
    def sumsq2(**a):



generators in python - used yield insted of return 
def fibonacci()
 i=j=1
 while True:
  r,i,j = i,j,i+j
  yield r


  for rabbits in fibonacci():
    print rabbits
    if rabbit > 100 : break
    >>
    1 1 2 3 5 8 13 21 34 55 89 144

Closures    
def makeAdder(addend):
    def adder(augend):
        return audend + addend
    return adder


a23=MakeAdder(23)
a42=MakeAdder(42)

print a23(100) , a42(100) , a23(a42(100))
>> 123 142 165


decorators

@<decor>
def <name>
#is like 
 def (name)
    name = <decor>(<name>)


#or another example 
@dec2
@dec1
def func(arg1, arg2, ...):
    pass

#This is equivalent to:

def func(arg1, arg2, ...):
    pass
func = dec2(dec1(func))

 and singleton example 
def singleton(cls):
    instances = {}
    def getinstance():
        if cls not in instances:
            instances[cls] = cls()
        return instances[cls]
    return getinstance

@singleton
class MyClass:
    ...

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