CodeDomProvider.IsDefinedLanguage(String) Methode

public:
 static bool IsDefinedLanguage(System::String ^ language);

public static bool IsDefinedLanguage (string language);

[System.Runtime.InteropServices.ComVisible(false)]
public static bool IsDefinedLanguage (string language);

static member IsDefinedLanguage : string -> bool

[<System.Runtime.InteropServices.ComVisible(false)>]
static member IsDefinedLanguage : string -> bool

Public Shared Function IsDefinedLanguage (language As String) As Boolean

Parameter

Gibt zurück

true, wenn für die angegebene Sprache eine CodeDomProvider-Implementierung konfiguriert ist, andernfalls false.

Attribute

ComVisibleAttribute

Ausnahmen

Beispiele

Im folgenden Codebeispiel wird die CodeDomProvider Implementierung für eine Eingabesprache bestimmt und die konfigurierten Einstellungen für den Sprachanbieter angezeigt. Dieses Codebeispiel ist Teil eines größeren Beispiels, das für die CompilerInfo-Klasse bereitgestellt wird.

CodeDomProvider^ provider = nullptr;

// Check for a provider corresponding to the input language.  
if ( CodeDomProvider::IsDefinedLanguage( language ) )
{
   provider = CodeDomProvider::CreateProvider( language );
   if ( provider )
   {
      // Display information about this language provider.
      Console::WriteLine( "Language provider:  {0}", provider->ToString() );
      Console::WriteLine();
      Console::WriteLine( "  Default file extension:  {0}", provider->FileExtension );
      Console::WriteLine();
      
      // Get the compiler settings for this language.
      CompilerInfo^ langCompilerInfo = CodeDomProvider::GetCompilerInfo( language );
      if ( langCompilerInfo )
      {
         CompilerParameters^ langCompilerConfig = langCompilerInfo->CreateDefaultCompilerParameters();
         if ( langCompilerConfig )
         {
            Console::WriteLine( "  Compiler options:        {0}", langCompilerConfig->CompilerOptions );
            Console::WriteLine( "  Compiler warning level:  {0}", langCompilerConfig->WarningLevel.ToString() );
         }
      }
   }
}

if ( provider == nullptr )  // Tell the user that the language provider was not found.
   Console::WriteLine(  "There is no provider configured for input language \"{0}\".", language );

CodeDomProvider provider;

// Check for a provider corresponding to the input language.
if (CodeDomProvider.IsDefinedLanguage(language))
{
    provider = CodeDomProvider.CreateProvider(language);

    // Display information about this language provider.

    Console.WriteLine("Language provider:  {0}",
        provider.ToString());
    Console.WriteLine();
    Console.WriteLine("  Default file extension:  {0}",
        provider.FileExtension);
    Console.WriteLine();

    // Get the compiler settings for this language.

    CompilerInfo langCompilerInfo = CodeDomProvider.GetCompilerInfo(language);
    CompilerParameters langCompilerConfig = langCompilerInfo.CreateDefaultCompilerParameters();

    Console.WriteLine("  Compiler options:        {0}",
        langCompilerConfig.CompilerOptions);
    Console.WriteLine("  Compiler warning level:  {0}",
        langCompilerConfig.WarningLevel);
}
else
{
    // Tell the user that the language provider was not found.
    Console.WriteLine("There is no provider configured for input language \"{0}\".",
        language);
}

Dim provider As CodeDomProvider

' Check for a provider corresponding to the input language.  
If CodeDomProvider.IsDefinedLanguage(language) Then
   provider = CodeDomProvider.CreateProvider(language)
   
   ' Display information about this language provider.
   Console.WriteLine("Language provider:  {0}", _
       provider.ToString())
   Console.WriteLine()
   Console.WriteLine("  Default file extension:  {0}", _
       provider.FileExtension)
   Console.WriteLine()
   
   ' Get the compiler settings for this language.
   Dim langCompilerInfo As CompilerInfo = CodeDomProvider.GetCompilerInfo(language)
   Dim langCompilerConfig As CompilerParameters = langCompilerInfo.CreateDefaultCompilerParameters()
   
   Console.WriteLine("  Compiler options:        {0}", _
       langCompilerConfig.CompilerOptions)
   Console.WriteLine("  Compiler warning level:  {0}", _
       langCompilerConfig.WarningLevel)
Else
   ' Tell the user that the language provider was not found.
   Console.WriteLine("There is no provider configured for input language ""{0}"".", _
       language)
End If

Hinweise

Das <system.codedom-Element> in der Computerkonfigurationsdatei (Machine.config) enthält die Sprachanbieter- und Compilerkonfigurationseinstellungen für jede CodeDomProvider Implementierung auf dem Computer. Die IsDefinedLanguage -Methode durchsucht die Anbieterkonfigurationselemente nach dem angegebenen Sprachnamen.

Bei Sprachnamen wird die Groß-/Kleinschreibung nicht beachtet.

Gilt für:

Weitere Informationen

• CreateProvider(String)
• Compiler and Language Provider Settings Schema (Schema für Compiler- und Sprachanbietereinstellungen)