CSharpCodeProvider Class

Definition

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

public class CSharpCodeProvider : System.CodeDom.Compiler.CodeDomProvider

type CSharpCodeProvider = class
    inherit CodeDomProvider

Public Class CSharpCodeProvider
Inherits CodeDomProvider

Inheritance

Object

MarshalByRefObject

Component

CodeDomProvider

CSharpCodeProvider

Examples

The following example uses either the C# or Visual Basic code provider to compile a source file. The example checks the input file extension and uses the corresponding CSharpCodeProvider or VBCodeProvider for compilation. The input file is compiled into an executable file, and any compilation errors are displayed to the console.

using System;
using System.IO;
using System.Globalization;
using System.CodeDom.Compiler;
using System.Text;
using Microsoft.CSharp;
using Microsoft.VisualBasic;

namespace CodeProviders
{
    class CompileSample
    {
        [STAThread]
        static void Main(string[] args)
        {
            if (args.Length > 0)
            {
                //  First parameter is the source file name.
                if (File.Exists(args[0]))
                {
                    CompileExecutable(args[0]);
                }
                else
                {
                    Console.WriteLine("Input source file not found - {0}",
                        args[0]);
                }
            }
            else
            {
                Console.WriteLine("Input source file not specified on command line!");
            }
        }

        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;
        }
    }
}

Imports System.IO
Imports System.Globalization
Imports System.CodeDom.Compiler
Imports System.Text
Imports Microsoft.CSharp

Namespace CodeProviders
    Class CompileSample
        <STAThread()>  _
        Public Shared Sub Main(args() As String)

            If args.Length > 0
                ' First parameter is the source file name.
                If File.Exists(args(0))
                    CompileExecutable(args(0))
                Else 
                    Console.WriteLine("Input source file not found - {0}", _
                        args(0))
                End If
            
            Else
                Console.WriteLine("Input source file not specified on command line!")
            End If
        End Sub

        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
    End Class
End Namespace

Remarks

This class provides methods that can be used to retrieve instances of the C# ICodeGenerator and ICodeCompiler implementations.

Constructors

Properties

Methods

Events

Applies to

See also

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