CodeCompileUnit.Namespaces Proprietà

Definizione

Spazio dei nomi:

System.CodeDom

Assembly:

System.CodeDom.dll

Pacchetto:

System.CodeDom v8.0.0

Origine:

CodeCompileUnit.cs

Restituisce l'insieme degli spazi dei nomi.

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

public System.CodeDom.CodeNamespaceCollection Namespaces { get; }

member this.Namespaces : System.CodeDom.CodeNamespaceCollection

Public ReadOnly Property Namespaces As CodeNamespaceCollection

Valore della proprietà

CodeNamespaceCollection

CodeNamespaceCollection che indica gli spazi dei nomi utilizzati dall'unità di compilazione.

Esempio

Nell'esempio di codice seguente viene costruito un CodeCompileUnit oggetto che modella la struttura del programma di un semplice programma "Hello World". Questo esempio fa parte di un esempio più ampio che produce anche codice da questo modello e viene fornito per la CodeDomProvider classe .

// 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;
}

// 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.
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

Commenti

È possibile aggiungere e rimuovere CodeNamespace oggetti da questa raccolta. Ogni oggetto rappresenta uno spazio dei nomi.

Nota

Alcuni linguaggi supportano solo un singolo spazio dei nomi che contiene una singola classe in un'unità di compilazione.

Vedi anche

• CodeNamespaceCollection