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CompilerResults Class

Represents the results of compilation that are returned from a compiler.

Namespace:  System.CodeDom.Compiler
Assembly:  System (in System.dll)

[PermissionSetAttribute(SecurityAction.InheritanceDemand, Name = "FullTrust")]
public class CompilerResults

This class contains the following information about the results of a compilation by an ICodeCompiler interface implementation:

  • The CompiledAssembly property indicates the compiled assembly.

  • The Evidence property indicates the security evidence for the assembly.

  • The PathToAssembly property indicates the path to the compiled assembly, if it was not generated only in memory.

  • The Errors property indicates any compiler errors and warnings.

  • The Output property contains the compiler output messages.

  • The NativeCompilerReturnValue property indicates result code value returned by the compiler.

  • The TempFiles property indicates the temporary files generated during compilation and linking.


This class contains an inheritance demand at the class level that applies to all members. A SecurityException is thrown when the derived class does not have full-trust permission. For details about inheritance demands, see Inheritance Demands.

// Displays information from a CompilerResults. 
public static void DisplayCompilerResults(System.CodeDom.Compiler.CompilerResults cr)
    // If errors occurred during compilation, output the compiler output and errors. 
    if( cr.Errors.Count > 0 )
        for( int i=0; i<cr.Output.Count; i++ )                
            Console.WriteLine( cr.Output[i] );
        for( int i=0; i<cr.Errors.Count; i++ )                
            Console.WriteLine( i.ToString() + ": " + cr.Errors[i].ToString() );

        // Display information about the compiler's exit code and the generated assembly.
        Console.WriteLine( "Compiler returned with result code: " + cr.NativeCompilerReturnValue.ToString() );
        Console.WriteLine( "Generated assembly name: " + cr.CompiledAssembly.FullName );
        if( cr.PathToAssembly == null )
            Console.WriteLine( "The assembly has been generated in memory." );
            Console.WriteLine( "Path to assembly: " + cr.PathToAssembly );

        // Display temporary files information. 
        if( !cr.TempFiles.KeepFiles )                
            Console.WriteLine( "Temporary build files were deleted." );
            Console.WriteLine( "Temporary build files were not deleted." );
            // Display a list of the temporary build files
            IEnumerator enu = cr.TempFiles.GetEnumerator();                                        
            for( int i=0; enu.MoveNext(); i++ )                                          
                Console.WriteLine( "TempFile " + i.ToString() + ": " + (string)enu.Current );                  

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0