CodeCompileUnit.Namespaces-Eigenschaft

Ruft die Auflistung von Namespaces ab.

Namespace: System.CodeDom
Assembly: System (in system.dll)

Syntax

'Declaration
Public ReadOnly Property Namespaces As CodeNamespaceCollection
'Usage
Dim instance As CodeCompileUnit
Dim value As CodeNamespaceCollection

value = instance.Namespaces

public CodeNamespaceCollection Namespaces { get; }

public:
property CodeNamespaceCollection^ Namespaces {
    CodeNamespaceCollection^ get ();
}

/** @property */
public CodeNamespaceCollection get_Namespaces ()

public function get Namespaces () : CodeNamespaceCollection

Eigenschaftenwert

Eine CodeNamespaceCollection-Klasse, die die von der Kompilierungseinheit verwendeten Namespaces angibt.

Hinweise

Sie können CodeNamespace-Objekte aus dieser Auflistung entfernen bzw. sie der Auflistung hinzufügen. Jedes Objekt stellt einen Namespace dar.

Beispiel

Im folgenden Beispiel wird eine CodeCompileUnit-Klasse erzeugt, die ein Modell der Programmstruktur eines einfachen "Hello World"-Programms erstellt. Dieses Beispiel ist Teil eines umfangreicheren Beispiels für die CodeDomProvider-Klasse, das auch Code aus diesem Modell erzeugt.

' 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

// 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;
}

// 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;
}

Plattformen

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.

Versionsinformationen

.NET Framework

Unterstützt in: 2.0, 1.1, 1.0

Siehe auch

Referenz

CodeCompileUnit-Klasse
CodeCompileUnit-Member
System.CodeDom-Namespace
CodeNamespaceCollection