CompilerParameters.TreatWarningsAsErrors Property

Definition

Namespace:

System.CodeDom.Compiler

Assembly:

System.CodeDom.dll

Gets or sets a value indicating whether to treat warnings as errors.

public:
 property bool TreatWarningsAsErrors { bool get(); void set(bool value); };

public bool TreatWarningsAsErrors { get; set; }

member this.TreatWarningsAsErrors : bool with get, set

Public Property TreatWarningsAsErrors As Boolean

Property Value

Boolean

true if warnings should be treated as errors; otherwise, false.

Examples

The following example illustrates using CompilerParameters to specify various compiler settings and options. This code example is part of a larger example provided for the CompilerParameters class.

static bool CompileCode( CodeDomProvider^ provider,
   String^ sourceFile,
   String^ exeFile )
{

   CompilerParameters^ cp = gcnew CompilerParameters;
   if ( !cp)  
   {
      return false;
   }

   // Generate an executable instead of 
   // a class library.
   cp->GenerateExecutable = true;
   
   // Set the assembly file name to generate.
   cp->OutputAssembly = exeFile;
   
   // Generate debug information.
   cp->IncludeDebugInformation = true;
   
   // Add an assembly reference.
   cp->ReferencedAssemblies->Add( "System.dll" );
   
   // Save the assembly as a physical file.
   cp->GenerateInMemory = false;
   
   // Set the level at which the compiler 
   // should start displaying warnings.
   cp->WarningLevel = 3;
   
   // Set whether to treat all warnings as errors.
   cp->TreatWarningsAsErrors = false;
   
   // Set compiler argument to optimize output.
   cp->CompilerOptions = "/optimize";
   
   // Set a temporary files collection.
   // The TempFileCollection stores the temporary files
   // generated during a build in the current directory,
   // and does not delete them after compilation.
   cp->TempFiles = gcnew TempFileCollection( ".",true );

   if ( provider->Supports( GeneratorSupport::EntryPointMethod ) )
   {
      // Specify the class that contains 
      // the main method of the executable.
      cp->MainClass = "Samples.Class1";
   }

   if ( Directory::Exists( "Resources" ) )
   {
      if ( provider->Supports( GeneratorSupport::Resources ) )
      {
         // Set the embedded resource file of the assembly.
         // This is useful for culture-neutral resources,
         // or default (fallback) resources.
         cp->EmbeddedResources->Add( "Resources\\Default.resources" );

         // Set the linked resource reference files of the assembly.
         // These resources are included in separate assembly files,
         // typically localized for a specific language and culture.
         cp->LinkedResources->Add( "Resources\\nb-no.resources" );
      }
   }

   // Invoke compilation.
   CompilerResults^ cr = provider->CompileAssemblyFromFile( cp, sourceFile );

   if ( cr->Errors->Count > 0 )
   {
      // Display compilation errors.
      Console::WriteLine( "Errors building {0} into {1}",
         sourceFile, cr->PathToAssembly );
      for each ( CompilerError^ ce in cr->Errors )
      {
         Console::WriteLine( "  {0}", ce->ToString() );
         Console::WriteLine();
      }
   }
   else
   {
      Console::WriteLine( "Source {0} built into {1} successfully.",
         sourceFile, cr->PathToAssembly );
   }

   // Return the results of compilation.
   if ( cr->Errors->Count > 0 )
   {
      return false;
   }
   else
   {
      return true;
   }
}

public static bool CompileCode(CodeDomProvider provider,
    String sourceFile,
    String exeFile)
{

    CompilerParameters cp = new CompilerParameters();

    // Generate an executable instead of
    // a class library.
    cp.GenerateExecutable = true;

    // Set the assembly file name to generate.
    cp.OutputAssembly = exeFile;

    // Generate debug information.
    cp.IncludeDebugInformation = true;

    // Add an assembly reference.
    cp.ReferencedAssemblies.Add( "System.dll" );

    // Save the assembly as a physical file.
    cp.GenerateInMemory = false;

    // Set the level at which the compiler
    // should start displaying warnings.
    cp.WarningLevel = 3;

    // Set whether to treat all warnings as errors.
    cp.TreatWarningsAsErrors = false;

    // Set compiler argument to optimize output.
    cp.CompilerOptions = "/optimize";

    // Set a temporary files collection.
    // The TempFileCollection stores the temporary files
    // generated during a build in the current directory,
    // and does not delete them after compilation.
    cp.TempFiles = new TempFileCollection(".", true);

    if (provider.Supports(GeneratorSupport.EntryPointMethod))
    {
        // Specify the class that contains
        // the main method of the executable.
        cp.MainClass = "Samples.Class1";
    }

    if (Directory.Exists("Resources"))
    {
        if (provider.Supports(GeneratorSupport.Resources))
        {
            // Set the embedded resource file of the assembly.
            // This is useful for culture-neutral resources,
            // or default (fallback) resources.
            cp.EmbeddedResources.Add("Resources\\Default.resources");

            // Set the linked resource reference files of the assembly.
            // These resources are included in separate assembly files,
            // typically localized for a specific language and culture.
            cp.LinkedResources.Add("Resources\\nb-no.resources");
        }
    }

    // Invoke compilation.
    CompilerResults cr = provider.CompileAssemblyFromFile(cp, sourceFile);

    if(cr.Errors.Count > 0)
    {
        // Display compilation errors.
        Console.WriteLine("Errors building {0} into {1}",
            sourceFile, cr.PathToAssembly);
        foreach(CompilerError ce in cr.Errors)
        {
            Console.WriteLine("  {0}", ce.ToString());
            Console.WriteLine();
        }
    }
    else
    {
        Console.WriteLine("Source {0} built into {1} successfully.",
            sourceFile, cr.PathToAssembly);
        Console.WriteLine("{0} temporary files created during the compilation.",
            cp.TempFiles.Count.ToString());
    }

    // Return the results of compilation.
    if (cr.Errors.Count > 0)
    {
        return false;
    }
    else
    {
        return true;
    }
}

Public Shared Function CompileCode(ByVal provider As CodeDomProvider, _
ByVal sourceFile As String, ByVal exeFile As String) As Boolean

    Dim cp As New CompilerParameters()

    ' Generate an executable instead of 
    ' a class library.
    cp.GenerateExecutable = True

    ' Set the assembly file name to generate.
    cp.OutputAssembly = exeFile

    ' Generate debug information.
    cp.IncludeDebugInformation = True

    ' Add an assembly reference.
    cp.ReferencedAssemblies.Add("System.dll")

    ' Save the assembly as a physical file.
    cp.GenerateInMemory = False

    ' Set the level at which the compiler 
    ' should start displaying warnings.
    cp.WarningLevel = 3

    ' Set whether to treat all warnings as errors.
    cp.TreatWarningsAsErrors = False

    ' Set compiler argument to optimize output.
    cp.CompilerOptions = "/optimize"

    ' Set a temporary files collection.
    ' The TempFileCollection stores the temporary files
    ' generated during a build in the current directory,
    ' and does not delete them after compilation.
    cp.TempFiles = New TempFileCollection(".", True)

    If provider.Supports(GeneratorSupport.EntryPointMethod) Then
        ' Specify the class that contains
        ' the main method of the executable.
        cp.MainClass = "Samples.Class1"
    End If


    If Directory.Exists("Resources") Then
        If provider.Supports(GeneratorSupport.Resources) Then
            ' Set the embedded resource file of the assembly.
            ' This is useful for culture-neutral resources,
            ' or default (fallback) resources.
            cp.EmbeddedResources.Add("Resources\Default.resources")

            ' Set the linked resource reference files of the assembly.
            ' These resources are included in separate assembly files,
            ' typically localized for a specific language and culture.
            cp.LinkedResources.Add("Resources\nb-no.resources")
        End If
    End If

    ' Invoke compilation.
    Dim cr As CompilerResults = _
        provider.CompileAssemblyFromFile(cp, sourceFile)

    If cr.Errors.Count > 0 Then
        ' Display compilation errors.
        Console.WriteLine("Errors building {0} into {1}", _
            sourceFile, cr.PathToAssembly)
        Dim ce As CompilerError
        For Each ce In cr.Errors
            Console.WriteLine("  {0}", ce.ToString())
            Console.WriteLine()
        Next ce
    Else
        Console.WriteLine("Source {0} built into {1} successfully.", _
            sourceFile, cr.PathToAssembly)
        Console.WriteLine("{0} temporary files created during the compilation.", _
                cp.TempFiles.Count.ToString())
    End If

    ' Return the results of compilation.
    If cr.Errors.Count > 0 Then
        Return False
    Else
        Return True
    End If
End Function 'CompileCode