CodeDomProvider 類別
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
提供基底類別 (Base Class) 給 CodeDomProvider 實作。 這個類別是抽象的。
public ref class CodeDomProvider abstract : System::ComponentModel::Componentpublic abstract class CodeDomProvider : System.ComponentModel.Component[System.Runtime.InteropServices.ComVisible(true)]
public abstract class CodeDomProvider : System.ComponentModel.Componenttype CodeDomProvider = class
inherit Component[<System.Runtime.InteropServices.ComVisible(true)>]
type CodeDomProvider = class
inherit ComponentPublic MustInherit Class CodeDomProvider
Inherits Component- 繼承
- 衍生
- 屬性
範例
下列範例程式可以根據使用 Console 類別列印 「Hello World」 的程式 CodeDOM 模型來產生及編譯原始程式碼。 提供 Windows Forms 使用者介面。 用戶可以從數個選項中選取目標程式設計語言：C#、Visual Basic 和 JScript。
#using <System.Windows.Forms.dll>
#using <System.Drawing.dll>
#using <System.dll>
#using <Microsoft.JScript.dll>
using namespace System;
using namespace System::CodeDom;
using namespace System::CodeDom::Compiler;
using namespace System::Collections;
using namespace System::ComponentModel;
using namespace System::Diagnostics;
using namespace System::Drawing;
using namespace System::IO;
using namespace System::Windows::Forms;
using namespace Microsoft::CSharp;
using namespace Microsoft::VisualBasic;
using namespace Microsoft::JScript;
using namespace System::Security::Permissions;
// This example demonstrates building a Hello World program graph
// using System.CodeDom elements. It calls code generator and
// code compiler methods to build the program using CSharp, VB, or
// JScript. A Windows Forms interface is included. Note: Code
// must be compiled and linked with the Microsoft.JScript assembly.
namespace CodeDOMExample
{
[PermissionSet(SecurityAction::Demand, Name="FullTrust")]
public ref class CodeDomExample
{
public:
// Build a Hello World program graph using
// System::CodeDom types.
static CodeCompileUnit^ BuildHelloWorldGraph()
{
// Create a new CodeCompileUnit to contain
// the program graph.
CodeCompileUnit^ compileUnit = gcnew CodeCompileUnit;
// Declare a new namespace called Samples.
CodeNamespace^ samples = gcnew CodeNamespace( "Samples" );
// Add the new namespace to the compile unit.
compileUnit->Namespaces->Add( samples );
// Add the new namespace import for the System namespace.
samples->Imports->Add( gcnew CodeNamespaceImport( "System" ) );
// Declare a new type called Class1.
CodeTypeDeclaration^ class1 = gcnew CodeTypeDeclaration( "Class1" );
// Add the new type to the namespace's type collection.
samples->Types->Add( class1 );
// Declare a new code entry point method.
CodeEntryPointMethod^ start = gcnew CodeEntryPointMethod;
// Create a type reference for the System::Console class.
CodeTypeReferenceExpression^ csSystemConsoleType = gcnew CodeTypeReferenceExpression( "System.Console" );
// Build a Console::WriteLine statement.
CodeMethodInvokeExpression^ cs1 = gcnew CodeMethodInvokeExpression( csSystemConsoleType,"WriteLine", gcnew CodePrimitiveExpression("Hello World!") );
// Add the WriteLine call to the statement collection.
start->Statements->Add( cs1 );
// Build another Console::WriteLine statement.
CodeMethodInvokeExpression^ cs2 = gcnew CodeMethodInvokeExpression( csSystemConsoleType,"WriteLine", gcnew CodePrimitiveExpression( "Press the Enter key to continue." ) );
// Add the WriteLine call to the statement collection.
start->Statements->Add( cs2 );
// Build a call to System::Console::ReadLine.
CodeMethodReferenceExpression^ csReadLine = gcnew CodeMethodReferenceExpression( csSystemConsoleType, "ReadLine" );
CodeMethodInvokeExpression^ cs3 = gcnew CodeMethodInvokeExpression( csReadLine, gcnew array<CodeExpression^>(0) );
// Add the ReadLine statement.
start->Statements->Add( cs3 );
// Add the code entry point method to
// the Members collection of the type.
class1->Members->Add( start );
return compileUnit;
}
static void GenerateCode( CodeDomProvider^ provider, CodeCompileUnit^ compileunit )
{
// Build the source file name with the appropriate
// language extension.
String^ sourceFile;
if ( provider->FileExtension->StartsWith( "." ) )
{
sourceFile = String::Concat( "TestGraph", provider->FileExtension );
}
else
{
sourceFile = String::Concat( "TestGraph.", provider->FileExtension );
}
// Create an IndentedTextWriter, constructed with
// a StreamWriter to the source file.
IndentedTextWriter^ tw = gcnew IndentedTextWriter( gcnew StreamWriter( sourceFile,false )," " );
// Generate source code using the code generator.
provider->GenerateCodeFromCompileUnit( compileunit, tw, gcnew CodeGeneratorOptions );
// Close the output file.
tw->Close();
}
static CompilerResults^ CompileCode( CodeDomProvider^ provider, String^ sourceFile, String^ exeFile )
{
// Configure a CompilerParameters that links System.dll
// and produces the specified executable file.
array<String^>^referenceAssemblies = {"System.dll"};
CompilerParameters^ cp = gcnew CompilerParameters( referenceAssemblies,exeFile,false );
// Generate an executable rather than a DLL file.
cp->GenerateExecutable = true;
// Invoke compilation.
CompilerResults^ cr = provider->CompileAssemblyFromFile( cp, sourceFile );
// Return the results of compilation.
return cr;
}
};
public ref class CodeDomExampleForm: public System::Windows::Forms::Form
{
private:
static System::Windows::Forms::Button^ run_button = gcnew System::Windows::Forms::Button;
static System::Windows::Forms::Button^ compile_button = gcnew System::Windows::Forms::Button;
static System::Windows::Forms::Button^ generate_button = gcnew System::Windows::Forms::Button;
static System::Windows::Forms::TextBox^ textBox1 = gcnew System::Windows::Forms::TextBox;
static System::Windows::Forms::ComboBox^ comboBox1 = gcnew System::Windows::Forms::ComboBox;
static System::Windows::Forms::Label^ label1 = gcnew System::Windows::Forms::Label;
void generate_button_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
CodeDomProvider^ provider = GetCurrentProvider();
CodeDomExample::GenerateCode( provider, CodeDomExample::BuildHelloWorldGraph() );
// Build the source file name with the appropriate
// language extension.
String^ sourceFile;
if ( provider->FileExtension->StartsWith( "." ) )
{
sourceFile = String::Concat( "TestGraph", provider->FileExtension );
}
else
{
sourceFile = String::Concat( "TestGraph.", provider->FileExtension );
}
// Read in the generated source file and
// display the source text.
StreamReader^ sr = gcnew StreamReader( sourceFile );
textBox1->Text = sr->ReadToEnd();
sr->Close();
}
CodeDomProvider^ GetCurrentProvider()
{
CodeDomProvider^ provider;
if ( String::Compare( dynamic_cast<String^>(this->comboBox1->SelectedItem), "CSharp" ) == 0 )
provider = CodeDomProvider::CreateProvider("CSharp");
else
if ( String::Compare( dynamic_cast<String^>(this->comboBox1->SelectedItem), "Visual Basic" ) == 0 )
provider = CodeDomProvider::CreateProvider("VisualBasic");
else
if ( String::Compare( dynamic_cast<String^>(this->comboBox1->SelectedItem), "JScript" ) == 0 )
provider = CodeDomProvider::CreateProvider("JScript");
else
provider = CodeDomProvider::CreateProvider("CSharp");
return provider;
}
void compile_button_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
CodeDomProvider^ provider = GetCurrentProvider();
// Build the source file name with the appropriate
// language extension.
String^ sourceFile = String::Concat( "TestGraph.", provider->FileExtension );
// Compile the source file into an executable output file.
CompilerResults^ cr = CodeDomExample::CompileCode( provider, sourceFile, "TestGraph.exe" );
if ( cr->Errors->Count > 0 )
{
// Display compilation errors.
textBox1->Text = String::Concat( "Errors encountered while building ", sourceFile, " into ", cr->PathToAssembly, ": \r\n\n" );
System::CodeDom::Compiler::CompilerError^ ce;
for ( int i = 0; i < cr->Errors->Count; i++ )
{
ce = cr->Errors[i];
textBox1->AppendText( String::Concat( ce->ToString(), "\r\n" ) );
}
run_button->Enabled = false;
}
else
{
textBox1->Text = String::Concat( "Source ", sourceFile, " built into ", cr->PathToAssembly, " with no errors." );
run_button->Enabled = true;
}
}
void run_button_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
Process::Start( "TestGraph.exe" );
}
public:
CodeDomExampleForm()
{
this->SuspendLayout();
// Set properties for label1.
this->label1->Location = System::Drawing::Point( 395, 20 );
this->label1->Size = System::Drawing::Size( 180, 22 );
this->label1->Text = "Select a programming language:";
// Set properties for comboBox1.
this->comboBox1->Location = System::Drawing::Point( 560, 16 );
this->comboBox1->Size = System::Drawing::Size( 190, 23 );
this->comboBox1->Name = "comboBox1";
array<String^>^temp1 = {"CSharp","Visual Basic","JScript"};
this->comboBox1->Items->AddRange( temp1 );
this->comboBox1->Anchor = (System::Windows::Forms::AnchorStyles)(System::Windows::Forms::AnchorStyles::Left | System::Windows::Forms::AnchorStyles::Right | System::Windows::Forms::AnchorStyles::Top);
this->comboBox1->SelectedIndex = 0;
// Set properties for generate_button.
this->generate_button->Location = System::Drawing::Point( 8, 16 );
this->generate_button->Name = "generate_button";
this->generate_button->Size = System::Drawing::Size( 120, 23 );
this->generate_button->Text = "Generate Code";
this->generate_button->Click += gcnew System::EventHandler( this, &CodeDomExampleForm::generate_button_Click );
// Set properties for compile_button.
this->compile_button->Location = System::Drawing::Point( 136, 16 );
this->compile_button->Name = "compile_button";
this->compile_button->Size = System::Drawing::Size( 120, 23 );
this->compile_button->Text = "Compile";
this->compile_button->Click += gcnew System::EventHandler( this, &CodeDomExampleForm::compile_button_Click );
// Set properties for run_button.
this->run_button->Enabled = false;
this->run_button->Location = System::Drawing::Point( 264, 16 );
this->run_button->Name = "run_button";
this->run_button->Size = System::Drawing::Size( 120, 23 );
this->run_button->Text = "Run";
this->run_button->Click += gcnew System::EventHandler( this, &CodeDomExampleForm::run_button_Click );
// Set properties for textBox1.
this->textBox1->Anchor = (System::Windows::Forms::AnchorStyles)(System::Windows::Forms::AnchorStyles::Top | System::Windows::Forms::AnchorStyles::Bottom | System::Windows::Forms::AnchorStyles::Left | System::Windows::Forms::AnchorStyles::Right);
this->textBox1->Location = System::Drawing::Point( 8, 48 );
this->textBox1->Multiline = true;
this->textBox1->ScrollBars = System::Windows::Forms::ScrollBars::Vertical;
this->textBox1->Name = "textBox1";
this->textBox1->Size = System::Drawing::Size( 744, 280 );
this->textBox1->Text = "";
// Set properties for the CodeDomExampleForm.
this->AutoScaleBaseSize = System::Drawing::Size( 5, 13 );
this->ClientSize = System::Drawing::Size( 768, 340 );
this->MinimumSize = System::Drawing::Size( 750, 340 );
array<System::Windows::Forms::Control^>^myControl = {this->textBox1,this->run_button,this->compile_button,this->generate_button,this->comboBox1,this->label1};
this->Controls->AddRange( myControl );
this->Name = "CodeDomExampleForm";
this->Text = "CodeDom Hello World Example";
this->ResumeLayout( false );
}
public:
~CodeDomExampleForm()
{
}
};
}
[STAThread]
int main()
{
Application::Run( gcnew CodeDOMExample::CodeDomExampleForm );
}
using System;
using System.CodeDom;
using System.CodeDom.Compiler;
using System.Collections;
using System.ComponentModel;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.Windows.Forms;
using Microsoft.CSharp;
using Microsoft.VisualBasic;
using Microsoft.JScript;
// This example demonstrates building a Hello World program graph
// using System.CodeDom elements. It calls code generator and
// code compiler methods to build the program using CSharp, VB, or
// JScript. A Windows Forms interface is included. Note: Code
// must be compiled and linked with the Microsoft.JScript assembly.
namespace CodeDOMExample
{
class CodeDomExample
{
// Build a Hello World program graph using
// System.CodeDom types.
public static CodeCompileUnit BuildHelloWorldGraph()
{
// Create a new CodeCompileUnit to contain
// the program graph.
CodeCompileUnit compileUnit = new CodeCompileUnit();
// Declare a new namespace called Samples.
CodeNamespace samples = new CodeNamespace("Samples");
// Add the new namespace to the compile unit.
compileUnit.Namespaces.Add(samples);
// Add the new namespace import for the System namespace.
samples.Imports.Add(new CodeNamespaceImport("System"));
// Declare a new type called Class1.
CodeTypeDeclaration class1 = new CodeTypeDeclaration("Class1");
// Add the new type to the namespace type collection.
samples.Types.Add(class1);
// Declare a new code entry point method.
CodeEntryPointMethod start = new CodeEntryPointMethod();
// Create a type reference for the System.Console class.
CodeTypeReferenceExpression csSystemConsoleType = new CodeTypeReferenceExpression("System.Console");
// Build a Console.WriteLine statement.
CodeMethodInvokeExpression cs1 = new CodeMethodInvokeExpression(
csSystemConsoleType, "WriteLine",
new CodePrimitiveExpression("Hello World!"));
// Add the WriteLine call to the statement collection.
start.Statements.Add(cs1);
// Build another Console.WriteLine statement.
CodeMethodInvokeExpression cs2 = new CodeMethodInvokeExpression(
csSystemConsoleType, "WriteLine",
new CodePrimitiveExpression("Press the Enter key to continue."));
// Add the WriteLine call to the statement collection.
start.Statements.Add(cs2);
// Build a call to System.Console.ReadLine.
CodeMethodInvokeExpression csReadLine = new CodeMethodInvokeExpression(
csSystemConsoleType, "ReadLine");
// Add the ReadLine statement.
start.Statements.Add(csReadLine);
// Add the code entry point method to
// the Members collection of the type.
class1.Members.Add(start);
return compileUnit;
}
public static void GenerateCode(CodeDomProvider provider,
CodeCompileUnit compileunit)
{
// Build the source file name with the appropriate
// language extension.
String sourceFile;
if (provider.FileExtension[0] == '.')
{
sourceFile = "TestGraph" + provider.FileExtension;
}
else
{
sourceFile = "TestGraph." + provider.FileExtension;
}
// Create an IndentedTextWriter, constructed with
// a StreamWriter to the source file.
IndentedTextWriter tw = new IndentedTextWriter(new StreamWriter(sourceFile, false), " ");
// Generate source code using the code generator.
provider.GenerateCodeFromCompileUnit(compileunit, tw, new CodeGeneratorOptions());
// Close the output file.
tw.Close();
}
public static CompilerResults CompileCode(CodeDomProvider provider,
String sourceFile,
String exeFile)
{
// Configure a CompilerParameters that links System.dll
// and produces the specified executable file.
String[] referenceAssemblies = { "System.dll" };
CompilerParameters cp = new CompilerParameters(referenceAssemblies,
exeFile, false);
// Generate an executable rather than a DLL file.
cp.GenerateExecutable = true;
// Invoke compilation.
CompilerResults cr = provider.CompileAssemblyFromFile(cp, sourceFile);
// Return the results of compilation.
return cr;
}
}
public class CodeDomExampleForm : System.Windows.Forms.Form
{
private System.Windows.Forms.Button run_button = new System.Windows.Forms.Button();
private System.Windows.Forms.Button compile_button = new System.Windows.Forms.Button();
private System.Windows.Forms.Button generate_button = new System.Windows.Forms.Button();
private System.Windows.Forms.TextBox textBox1 = new System.Windows.Forms.TextBox();
private System.Windows.Forms.ComboBox comboBox1 = new System.Windows.Forms.ComboBox();
private System.Windows.Forms.Label label1 = new System.Windows.Forms.Label();
private void generate_button_Click(object sender, System.EventArgs e)
{
CodeDomProvider provider = GetCurrentProvider();
CodeDomExample.GenerateCode(provider, CodeDomExample.BuildHelloWorldGraph());
// Build the source file name with the appropriate
// language extension.
String sourceFile;
if (provider.FileExtension[0] == '.')
{
sourceFile = "TestGraph" + provider.FileExtension;
}
else
{
sourceFile = "TestGraph." + provider.FileExtension;
}
// Read in the generated source file and
// display the source text.
StreamReader sr = new StreamReader(sourceFile);
textBox1.Text = sr.ReadToEnd();
sr.Close();
}
private void compile_button_Click(object sender, System.EventArgs e)
{
CodeDomProvider provider = GetCurrentProvider();
// Build the source file name with the appropriate
// language extension.
String sourceFile;
if (provider.FileExtension[0] == '.')
{
sourceFile = "TestGraph" + provider.FileExtension;
}
else
{
sourceFile = "TestGraph." + provider.FileExtension;
}
// Compile the source file into an executable output file.
CompilerResults cr = CodeDomExample.CompileCode(provider,
sourceFile,
"TestGraph.exe");
if (cr.Errors.Count > 0)
{
// Display compilation errors.
textBox1.Text = "Errors encountered while building " +
sourceFile + " into " + cr.PathToAssembly + ": \r\n\n";
foreach (CompilerError ce in cr.Errors)
textBox1.AppendText(ce.ToString() + "\r\n");
run_button.Enabled = false;
}
else
{
textBox1.Text = "Source " + sourceFile + " built into " +
cr.PathToAssembly + " with no errors.";
run_button.Enabled = true;
}
}
private void run_button_Click(object sender,
System.EventArgs e)
{
Process.Start("TestGraph.exe");
}
private CodeDomProvider GetCurrentProvider()
{
CodeDomProvider provider;
switch ((string)this.comboBox1.SelectedItem)
{
case "CSharp":
provider = CodeDomProvider.CreateProvider("CSharp");
break;
case "Visual Basic":
provider = CodeDomProvider.CreateProvider("VisualBasic");
break;
case "JScript":
provider = CodeDomProvider.CreateProvider("JScript");
break;
default:
provider = CodeDomProvider.CreateProvider("CSharp");
break;
}
return provider;
}
public CodeDomExampleForm()
{
this.SuspendLayout();
// Set properties for label1
this.label1.Location = new System.Drawing.Point(395, 20);
this.label1.Size = new Size(180, 22);
this.label1.Text = "Select a programming language:";
// Set properties for comboBox1
this.comboBox1.Location = new System.Drawing.Point(560, 16);
this.comboBox1.Size = new Size(190, 23);
this.comboBox1.Name = "comboBox1";
this.comboBox1.Items.AddRange(new string[] { "CSharp", "Visual Basic", "JScript" });
this.comboBox1.Anchor = System.Windows.Forms.AnchorStyles.Left
| System.Windows.Forms.AnchorStyles.Right
| System.Windows.Forms.AnchorStyles.Top;
this.comboBox1.SelectedIndex = 0;
// Set properties for generate_button.
this.generate_button.Location = new System.Drawing.Point(8, 16);
this.generate_button.Name = "generate_button";
this.generate_button.Size = new System.Drawing.Size(120, 23);
this.generate_button.Text = "Generate Code";
this.generate_button.Click += new System.EventHandler(this.generate_button_Click);
// Set properties for compile_button.
this.compile_button.Location = new System.Drawing.Point(136, 16);
this.compile_button.Name = "compile_button";
this.compile_button.Size = new System.Drawing.Size(120, 23);
this.compile_button.Text = "Compile";
this.compile_button.Click += new System.EventHandler(this.compile_button_Click);
// Set properties for run_button.
this.run_button.Enabled = false;
this.run_button.Location = new System.Drawing.Point(264, 16);
this.run_button.Name = "run_button";
this.run_button.Size = new System.Drawing.Size(120, 23);
this.run_button.Text = "Run";
this.run_button.Click += new System.EventHandler(this.run_button_Click);
// Set properties for textBox1.
this.textBox1.Anchor = (System.Windows.Forms.AnchorStyles.Top
| System.Windows.Forms.AnchorStyles.Bottom
| System.Windows.Forms.AnchorStyles.Left
| System.Windows.Forms.AnchorStyles.Right);
this.textBox1.Location = new System.Drawing.Point(8, 48);
this.textBox1.Multiline = true;
this.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(744, 280);
this.textBox1.Text = "";
// Set properties for the CodeDomExampleForm.
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(768, 340);
this.MinimumSize = new System.Drawing.Size(750, 340);
this.Controls.AddRange(new System.Windows.Forms.Control[] {this.textBox1,
this.run_button, this.compile_button, this.generate_button,
this.comboBox1, this.label1 });
this.Name = "CodeDomExampleForm";
this.Text = "CodeDom Hello World Example";
this.ResumeLayout(false);
}
protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
}
[STAThread]
static void Main()
{
Application.Run(new CodeDomExampleForm());
}
}
}
Imports System.CodeDom
Imports System.CodeDom.Compiler
Imports System.Collections
Imports System.ComponentModel
Imports System.Diagnostics
Imports System.Drawing
Imports System.IO
Imports System.Windows.Forms
Imports Microsoft.CSharp
Imports Microsoft.JScript
' This example demonstrates building a Hello World program graph
' using System.CodeDom elements. It calls code generator and
' code compiler methods to build the program using CSharp, VB, or
' JScript. A Windows Forms interface is included. Note: Code
' must be compiled and linked with the Microsoft.JScript assembly.
Namespace CodeDOMExample
Class CodeDomExample
' Build a Hello World program graph using
' System.CodeDom types.
Public Shared Function BuildHelloWorldGraph() As CodeCompileUnit
' Create a new CodeCompileUnit to contain
' the program graph.
Dim compileUnit As New CodeCompileUnit()
' Declare a new namespace called Samples.
Dim samples As New CodeNamespace("Samples")
' Add the new namespace to the compile unit.
compileUnit.Namespaces.Add(samples)
' Add the new namespace import for the System namespace.
samples.Imports.Add(New CodeNamespaceImport("System"))
' Declare a new type called Class1.
Dim class1 As New CodeTypeDeclaration("Class1")
' Add the new type to the namespace type collection.
samples.Types.Add(class1)
' Declare a new code entry point method.
Dim start As New CodeEntryPointMethod()
' Create a type reference for the System.Console class.
Dim csSystemConsoleType As New CodeTypeReferenceExpression( _
"System.Console")
' Build a Console.WriteLine statement.
Dim cs1 As New CodeMethodInvokeExpression( _
csSystemConsoleType, "WriteLine", _
New CodePrimitiveExpression("Hello World!"))
' Add the WriteLine call to the statement collection.
start.Statements.Add(cs1)
' Build another Console.WriteLine statement.
Dim cs2 As New CodeMethodInvokeExpression( _
csSystemConsoleType, "WriteLine", _
New CodePrimitiveExpression("Press the Enter key to continue."))
' Add the WriteLine call to the statement collection.
start.Statements.Add(cs2)
' Build a call to System.Console.ReadLine.
Dim csReadLine As New CodeMethodInvokeExpression( _
csSystemConsoleType, "ReadLine")
' Add the ReadLine statement.
start.Statements.Add(csReadLine)
' Add the code entry point method to
' the Members collection of the type.
class1.Members.Add(start)
Return compileUnit
End Function
Public Shared Sub GenerateCode(ByVal provider As CodeDomProvider, ByVal compileunit As CodeCompileUnit)
' Build the source file name with the appropriate
' language extension.
Dim sourceFile As String
If provider.FileExtension.StartsWith(".") Then
sourceFile = "TestGraph" + provider.FileExtension
Else
sourceFile = "TestGraph." + provider.FileExtension
End If
' Create an IndentedTextWriter, constructed with
' a StreamWriter to the source file.
Dim tw As New IndentedTextWriter(New StreamWriter(sourceFile, False), " ")
' Generate source code using the code generator.
provider.GenerateCodeFromCompileUnit(compileunit, tw, New CodeGeneratorOptions())
' Close the output file.
tw.Close()
End Sub
Public Shared Function CompileCode(ByVal provider As CodeDomProvider, _
ByVal sourceFile As String, _
ByVal exeFile As String) As CompilerResults
' Configure a CompilerParameters that links System.dll
' and produces the specified executable file.
Dim referenceAssemblies As String() = {"System.dll"}
Dim cp As New CompilerParameters(referenceAssemblies, exeFile, False)
' Generate an executable rather than a DLL file.
cp.GenerateExecutable = True
' Invoke compilation.
Dim cr As CompilerResults = provider.CompileAssemblyFromFile(cp, _
sourceFile)
' Return the results of compilation.
Return cr
End Function
End Class
Public Class CodeDomExampleForm
Inherits System.Windows.Forms.Form
Private run_button As New System.Windows.Forms.Button()
Private compile_button As New System.Windows.Forms.Button()
Private generate_button As New System.Windows.Forms.Button()
Private textBox1 As New System.Windows.Forms.TextBox()
Private comboBox1 As New System.Windows.Forms.ComboBox()
Private label1 As New System.Windows.Forms.Label()
Private Sub generate_button_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim provider As CodeDomProvider = GetCurrentProvider()
CodeDomExample.GenerateCode(provider, CodeDomExample.BuildHelloWorldGraph())
' Build the source file name with the appropriate
' language extension.
Dim sourceFile As String
If provider.FileExtension.StartsWith(".") Then
sourceFile = "TestGraph" + provider.FileExtension
Else
sourceFile = "TestGraph." + provider.FileExtension
End If
' Read in the generated source file and
' display the source text.
Dim sr As New StreamReader(sourceFile)
textBox1.Text = sr.ReadToEnd()
sr.Close()
End Sub
Private Sub compile_button_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim provider As CodeDomProvider = GetCurrentProvider()
' Build the source file name with the appropriate
' language extension.
Dim sourceFile As String
If provider.FileExtension.StartsWith(".") Then
sourceFile = "TestGraph" + provider.FileExtension
Else
sourceFile = "TestGraph." + provider.FileExtension
End If
Dim cr As CompilerResults = CodeDomExample.CompileCode(provider, _
sourceFile, _
"TestGraph.EXE")
If cr.Errors.Count > 0 Then
' Display compilation errors.
textBox1.Text = "Errors encountered while building " + _
sourceFile + " into " + _
cr.PathToAssembly + ": " + ControlChars.CrLf
Dim ce As System.CodeDom.Compiler.CompilerError
For Each ce In cr.Errors
textBox1.AppendText(ce.ToString() + ControlChars.CrLf)
Next ce
run_button.Enabled = False
Else
textBox1.Text = "Source " + sourceFile + " built into " + _
cr.PathToAssembly + " with no errors."
run_button.Enabled = True
End If
End Sub
Private Sub run_button_Click(ByVal sender As Object, _
ByVal e As System.EventArgs)
Process.Start("TestGraph.EXE")
End Sub
Private Function GetCurrentProvider() As CodeDomProvider
Dim provider As CodeDomProvider
Select Case CStr(Me.comboBox1.SelectedItem)
Case "CSharp"
provider = CodeDomProvider.CreateProvider("CSharp")
Case "Visual Basic"
provider = CodeDomProvider.CreateProvider("VisualBasic")
Case "JScript"
provider = CodeDomProvider.CreateProvider("JScript")
Case Else
provider = CodeDomProvider.CreateProvider("CSharp")
End Select
Return provider
End Function
Public Sub New()
Me.SuspendLayout()
' Set properties for label1.
Me.label1.Location = New System.Drawing.Point(395, 20)
Me.label1.Size = New Size(180, 22)
Me.label1.Text = "Select a programming language:"
' Set properties for comboBox1.
Me.comboBox1.Location = New System.Drawing.Point(560, 16)
Me.comboBox1.Size = New Size(190, 23)
Me.comboBox1.Name = "comboBox1"
Me.comboBox1.Items.AddRange(New String() {"CSharp", "Visual Basic", "JScript"})
Me.comboBox1.Anchor = System.Windows.Forms.AnchorStyles.Left Or System.Windows.Forms.AnchorStyles.Right Or System.Windows.Forms.AnchorStyles.Top
Me.comboBox1.SelectedIndex = 0
' Set properties for generate_button.
Me.generate_button.Location = New System.Drawing.Point(8, 16)
Me.generate_button.Name = "generate_button"
Me.generate_button.Size = New System.Drawing.Size(120, 23)
Me.generate_button.Text = "Generate Code"
AddHandler generate_button.Click, AddressOf Me.generate_button_Click
' Set properties for compile_button.
Me.compile_button.Location = New System.Drawing.Point(136, 16)
Me.compile_button.Name = "compile_button"
Me.compile_button.Size = New System.Drawing.Size(120, 23)
Me.compile_button.Text = "Compile"
AddHandler compile_button.Click, AddressOf Me.compile_button_Click
' Set properties for run_button.
Me.run_button.Enabled = False
Me.run_button.Location = New System.Drawing.Point(264, 16)
Me.run_button.Name = "run_button"
Me.run_button.Size = New System.Drawing.Size(120, 23)
Me.run_button.Text = "Run"
AddHandler run_button.Click, AddressOf Me.run_button_Click
' Set properties for textBox1.
Me.textBox1.Anchor = System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Left Or System.Windows.Forms.AnchorStyles.Right
Me.textBox1.Location = New System.Drawing.Point(8, 48)
Me.textBox1.Multiline = True
Me.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Vertical
Me.textBox1.Name = "textBox1"
Me.textBox1.Size = New System.Drawing.Size(744, 280)
Me.textBox1.Text = ""
' Set properties for the CodeDomExampleForm.
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(768, 340)
Me.MinimumSize = New System.Drawing.Size(750, 340)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.textBox1, _
Me.run_button, Me.compile_button, Me.generate_button, _
Me.comboBox1, Me.label1})
Me.Name = "CodeDomExampleForm"
Me.Text = "CodeDom Hello World Example"
Me.ResumeLayout(False)
End Sub
Protected Overloads Sub Dispose(ByVal disposing As Boolean)
MyBase.Dispose(disposing)
End Sub
<STAThread()> _
Shared Sub Main()
Application.Run(New CodeDomExampleForm())
End Sub
End Class
End Namespace
備註
CodeDomProvider可用來建立和擷取程式代碼產生器和程式代碼編譯程式的實例。 程式碼產生器可以用來產生特定語言的程式碼，且程式碼編譯器可將程式碼編譯為組件。
注意
在 .NET Framework 2.0 中，程式代碼產生器和程式代碼編譯程式中提供的方法可直接從程式代碼提供者取得。 您不需要呼叫 CreateGenerator 或 CreateCompiler 來存取方法，而且這些方法會標示為過時。 這適用於既有的程式代碼提供者實作，以及新的程式代碼提供者實作。
實 CodeDomProvider 作通常會提供程式碼產生和/或程式代碼編譯介面，以產生程式代碼和管理單一程式設計語言的編譯。 Windows SDK 隨附的實作支持 CodeDomProvider 數種語言。 這些語言包括 C#、Visual Basic、C++和 JScript。 開發人員或編譯程式廠商可以實作 ICodeGenerator 和 ICodeCompiler 介面，並提供 CodeDomProvider 將 CodeDOM 支援延伸至其他程式設計語言的 。
計算機組態檔中的 system.codedom> 元素 (Machine.config) 提供一種機制，讓開發人員和編譯程式廠商新增其他實作的組態設定。<CodeDomProvider
類別 CodeDomProvider 提供靜態方法來探索及列舉 CodeDomProvider 計算機上的實作。 方法 GetAllCompilerInfo 會傳回電腦上所有 CodeDomProvider 實作的設定。 方法 GetCompilerInfo 會根據程式設計語言名稱傳回特定 CodeDomProvider 實作的設定。 方法 CreateProvider 會傳回特定語言實作的 CodeDomProvider 實例。
如需組態檔中語言提供者設定的詳細資訊，請參閱 編譯程式和語言提供者設定架構。
注意
這個類別會在類別層級建立連結需求和繼承需求。 SecurityException如果立即呼叫端或衍生類別沒有完全信任許可權，則會擲回 。 如需安全性需求的詳細資訊，請參閱 連結需求 和 繼承需求。
給實施者的注意事項
在 .NET Framework 1.0 和 1.1 版中，程式代碼提供者是由 、 ICodeGeneratorICodeParser和 ICodeCompiler的實作CodeDomProvider所組成。 在 .NET Framework 2.0 中CreateGenerator()，、 CreateParser()和 CreateCompiler() 方法已過時，且 和 ICodeCompiler 的方法ICodeGenerator可直接在 類別中使用CodeDomProvider。 您應該覆寫程式代碼提供者實作中的那些方法，而不是呼叫基底方法。
建構函式
| CodeDomProvider() |
初始化 CodeDomProvider 類別的新執行個體。 |
屬性
| CanRaiseEvents |
取得值，指出元件是否能引發事件。 (繼承來源 Component) |
| Container |
取得包含 IContainer 的 Component。 (繼承來源 Component) |
| DesignMode |
取得值，指出 Component 目前是否處於設計模式。 (繼承來源 Component) |
| Events |
取得附加在這個 Component 上的事件處理常式清單。 (繼承來源 Component) |
| FileExtension |
取得目前語言的原始程式碼檔案所使用的預設副檔名。 |
| LanguageOptions |
取得語言功能識別項。 |
| Site | (繼承來源 Component) |
方法
事件
| Disposed |
當 Dispose() 方法的呼叫處置元件時，就會發生。 (繼承來源 Component) |
