CompilerInfo.GetExtensions Method

Definition

Namespace:

System.CodeDom.Compiler

Assembly:

System.CodeDom.dll

Returns the file name extensions supported by the language provider.

public:
 cli::array <System::String ^> ^ GetExtensions();

public string[] GetExtensions ();

member this.GetExtensions : unit -> string[]

Public Function GetExtensions () As String()

Returns

String[]

An array of file name extensions supported by the language provider.

Examples

The following code example enumerates the language providers on the computer and displays the configuration and compiler settings for each language provider. This code example is part of a larger example provided for the CompilerInfo class.

array<CompilerInfo^>^allCompilerInfo = CodeDomProvider::GetAllCompilerInfo();
for ( int i = 0; i < allCompilerInfo->Length; i++ )
{
   String^ defaultLanguage;
   String^ defaultExtension;
   CompilerInfo^ info = allCompilerInfo[ i ];
   CodeDomProvider^ provider = nullptr;
   if ( info )
      provider = info->CreateProvider();

   if ( provider )
   {
      // Display information about this configured provider.
      Console::WriteLine( "Language provider:  {0}", provider->ToString() );
      Console::WriteLine();
      Console::WriteLine( "  Supported file extension(s):" );
      array<String^>^extensions = info->GetExtensions();
      for ( int i = 0; i < extensions->Length; i++ )
          Console::WriteLine( "    {0}", extensions[ i ] );

      defaultExtension = provider->FileExtension;
      if (  !defaultExtension->StartsWith( "." ) )
          defaultExtension = String::Concat( ".", defaultExtension );

      Console::WriteLine( "  Default file extension:  {0}\n", defaultExtension );
      Console::WriteLine( "  Supported language(s):" );
      array<String^>^languages = info->GetLanguages();
      for ( int i = 0; i < languages->Length; i++ )
          Console::WriteLine( "    {0}", languages[ i ] );

      defaultLanguage = CodeDomProvider::GetLanguageFromExtension( defaultExtension );
      Console::WriteLine(  "  Default language:        {0}", defaultLanguage );
      Console::WriteLine();
      
      // Get the compiler settings for this provider.
      CompilerParameters^ langCompilerConfig = info->CreateDefaultCompilerParameters();
      if ( langCompilerConfig )
      {
         Console::WriteLine( "  Compiler options:        {0}", langCompilerConfig->CompilerOptions );
         Console::WriteLine( "  Compiler warning level:  {0}", langCompilerConfig->WarningLevel.ToString() );
      }
   }

}

CompilerInfo [] allCompilerInfo = CodeDomProvider.GetAllCompilerInfo();
foreach (CompilerInfo info in allCompilerInfo)
{
    String defaultLanguage;
    String defaultExtension;

    CodeDomProvider provider = info.CreateProvider();

    // Display information about this configured provider.

    Console.WriteLine("Language provider:  {0}",
        provider.ToString());
    Console.WriteLine();

    Console.WriteLine("  Supported file extension(s):");
    foreach(String extension in info.GetExtensions())
    {
        Console.WriteLine("    {0}", extension);
    }

    defaultExtension = provider.FileExtension;
    if (defaultExtension[0] != '.')
    {
        defaultExtension = "." + defaultExtension;
    }
    Console.WriteLine("  Default file extension:  {0}",
        defaultExtension);
    Console.WriteLine();

    Console.WriteLine("  Supported language(s):");
    foreach(String language in info.GetLanguages())
    {
        Console.WriteLine("    {0}", language);
    }

    defaultLanguage = CodeDomProvider.GetLanguageFromExtension(defaultExtension);
    Console.WriteLine("  Default language:        {0}",
        defaultLanguage);
    Console.WriteLine();

    // Get the compiler settings for this provider.
    CompilerParameters langCompilerConfig = info.CreateDefaultCompilerParameters();

    Console.WriteLine("  Compiler options:        {0}",
        langCompilerConfig.CompilerOptions);
    Console.WriteLine("  Compiler warning level:  {0}",
        langCompilerConfig.WarningLevel);
    Console.WriteLine();
}

        Dim allCompilerInfo As CompilerInfo() = CodeDomProvider.GetAllCompilerInfo()
        Dim info As CompilerInfo
        For Each info In  allCompilerInfo

           Dim defaultLanguage As String
           Dim defaultExtension As String

           Dim provider As CodeDomProvider = info.CreateProvider()
           
           ' Display information about this configured provider.
           Console.WriteLine("Language provider:  {0}", _
               provider.ToString())
           Console.WriteLine()
           
           Console.WriteLine("  Supported file extension(s):")
           Dim extension As String
           For Each extension In info.GetExtensions()
              Console.WriteLine("    {0}", extension)
           Next extension
           
           defaultExtension = provider.FileExtension
           If Not defaultExtension.StartsWith(".") Then
              defaultExtension = "." + defaultExtension
           End If

           Console.WriteLine("  Default file extension:  {0}", _
             defaultExtension)
           Console.WriteLine()
           
           Console.WriteLine("  Supported language(s):")
           Dim language As String
           For Each language In  info.GetLanguages()
              Console.WriteLine("    {0}", language)
           Next language
           defaultLanguage = CodeDomProvider.GetLanguageFromExtension(defaultExtension)
           Console.WriteLine("  Default language:        {0}", _
              defaultLanguage)
           Console.WriteLine()
           
           ' Get the compiler settings for this provider.
           Dim langCompilerConfig As CompilerParameters = info.CreateDefaultCompilerParameters()
           
           Console.WriteLine("  Compiler options:        {0}", _
               langCompilerConfig.CompilerOptions)
           Console.WriteLine("  Compiler warning level:  {0}", _
               langCompilerConfig.WarningLevel)
           Console.WriteLine()
        Next info

Remarks

The <system.codedom> Element in the machine configuration file contains the language provider and compiler configuration settings for each CodeDomProvider implementation on the computer. Each configured language provider supports one or more file name extensions. For example, a Microsoft.CSharp.CSharpCodeProvider might support the file name extensions ".cs" and ".c#".

See also

• IsDefinedExtension(String)
• Compiler and Language Provider Settings Schema