VBCodeProvider Klas

Definitie

public ref class VBCodeProvider : System::CodeDom::Compiler::CodeDomProvider

public class VBCodeProvider : System.CodeDom.Compiler.CodeDomProvider

type VBCodeProvider = class
    inherit CodeDomProvider

Public Class VBCodeProvider
Inherits CodeDomProvider

Overname

Object

MarshalByRefObject

Component

CodeDomProvider

VBCodeProvider

Voorbeelden

In het volgende voorbeeld wordt de C# of Visual Basic codeprovider gebruikt om een bronbestand te compileren. In het voorbeeld wordt de bestandsextensie voor invoer gecontroleerd en wordt de bijbehorende CSharpCodeProvider of VBCodeProvider compilatie gebruikt. Het invoerbestand wordt gecompileerd in een uitvoerbaar bestand en eventuele compilatiefouten worden weergegeven in de console.

public static bool CompileExecutable(String sourceName)
{
    FileInfo sourceFile = new FileInfo(sourceName);
    CodeDomProvider provider = null;
    bool compileOk = false;

    // Select the code provider based on the input file extension.
    if (sourceFile.Extension.ToUpper(CultureInfo.InvariantCulture) == ".CS")
    {
        provider = CodeDomProvider.CreateProvider("CSharp");
    }
    else if (sourceFile.Extension.ToUpper(CultureInfo.InvariantCulture) == ".VB")
    {
        provider = CodeDomProvider.CreateProvider("VisualBasic");
    }
    else
    {
        Console.WriteLine("Source file must have a .cs or .vb extension");
    }

    if (provider != null)
    {

        // Format the executable file name.
        // Build the output assembly path using the current directory
        // and <source>_cs.exe or <source>_vb.exe.

        String exeName = String.Format(@"{0}\{1}.exe",
            System.Environment.CurrentDirectory,
            sourceFile.Name.Replace(".", "_"));

        CompilerParameters cp = new CompilerParameters();

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

        // Specify the assembly file name to generate.
        cp.OutputAssembly = exeName;

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

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

        // Invoke compilation of the source file.
        CompilerResults cr = provider.CompileAssemblyFromFile(cp,
            sourceName);

        if(cr.Errors.Count > 0)
        {
            // Display compilation errors.
            Console.WriteLine("Errors building {0} into {1}",
                sourceName, cr.PathToAssembly);
            foreach(CompilerError ce in cr.Errors)
            {
                Console.WriteLine("  {0}", ce.ToString());
                Console.WriteLine();
            }
        }
        else
        {
            // Display a successful compilation message.
            Console.WriteLine("Source {0} built into {1} successfully.",
                sourceName, cr.PathToAssembly);
        }

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

       Public Shared Function CompileExecutable(sourceName As String) As Boolean
           Dim sourceFile As FileInfo = New FileInfo(sourceName)
           Dim provider As CodeDomProvider = Nothing
           Dim compileOk As Boolean = False

           ' Select the code provider based on the input file extension.
           If sourceFile.Extension.ToUpper(CultureInfo.InvariantCulture) = ".CS"

               provider = CodeDomProvider.CreateProvider("CSharp")

           ElseIf sourceFile.Extension.ToUpper(CultureInfo.InvariantCulture) = ".VB"

               provider = CodeDomProvider.CreateProvider("VisualBasic")

           Else
               Console.WriteLine("Source file must have a .cs or .vb extension")
           End If

           If Not provider Is Nothing

               ' Format the executable file name.
               ' Build the output assembly path using the current directory
               ' and <source>_cs.exe or <source>_vb.exe.

               Dim exeName As String = String.Format("{0}\{1}.exe", _
                   System.Environment.CurrentDirectory, _
                   sourceFile.Name.Replace(".", "_"))

               Dim cp As CompilerParameters = new CompilerParameters()

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

               ' Specify the assembly file name to generate.
               cp.OutputAssembly = exeName
   
               ' Save the assembly as a physical file.
               cp.GenerateInMemory = False
   
               ' Set whether to treat all warnings as errors.
               cp.TreatWarningsAsErrors = False

               ' Invoke compilation of the source file.
               Dim cr As CompilerResults = provider.CompileAssemblyFromFile(cp, _
                   sourceName)
   
               If cr.Errors.Count > 0
                   ' Display compilation errors.
                   Console.WriteLine("Errors building {0} into {1}", _
                       sourceName, cr.PathToAssembly)

                   Dim ce As CompilerError
                   For Each ce In cr.Errors
                       Console.WriteLine("  {0}", ce.ToString())
                       Console.WriteLine()
                   Next ce
               Else
                   ' Display a successful compilation message.
                   Console.WriteLine("Source {0} built into {1} successfully.", _
                       sourceName, cr.PathToAssembly)
               End If
             
               ' Return the results of the compilation.
               If cr.Errors.Count > 0
                   compileOk = False
               Else 
                   compileOk = True
               End If
           End If
           return compileOk

       End Function

Opmerkingen

Deze klasse biedt methoden die kunnen worden gebruikt voor het ophalen van exemplaren van de Visual Basic ICodeGenerator en ICodeCompiler-implementaties.

Zie ook

• ICodeGenerator
• ICodeCompiler
• System.CodeDom
• System.CodeDom.Compiler