linq transformation sample xml xelement.parse used

XElement project = XElement.Parse (@"
<Project DefaultTargets=""Build"" xmlns=""http://schemas.microsoft.com/developer/msbuild/2003"">
        <PropertyGroup>
                <Platform Condition="" '$(Platform)' == '' "">AnyCPU</Platform>
                <ProductVersion>9.0.11209</ProductVersion>
        </PropertyGroup>
        <ItemGroup>
                <Compile Include=""ObjectGraph.cs"" />
                <Compile Include=""Program.cs"" />
                <Compile Include=""Properties\AssemblyInfo.cs"" />
                <Compile Include=""Tests\Aggregation.cs"" />
                <Compile Include=""Tests\Advanced\RecursiveXml.cs"" />
        </ItemGroup>
</Project>");

XNamespace ns = project.Name.Namespace;

var query =
        new XElement ("ProjectReport",
                from compileItem in project.Elements (ns + "ItemGroup").Elements (ns + "Compile")
                let include = compileItem.Attribute ("Include")
                where include != null
                select new XElement ("File", include.Value)
        );

query.Dump();

and results will be:

<ProjectReport>
<File>ObjectGraph.cs</File>
<File>Program.cs</File>
<File>Properties\AssemblyInfo.cs</File>
<File>Tests\Aggregation.cs</File>
<File>Tests\Advanced\RecursiveXml.cs</File>
</ProjectReport>

more...