CodeThrowExceptionStatement Classe

Definizione

public ref class CodeThrowExceptionStatement : System::CodeDom::CodeStatement

public class CodeThrowExceptionStatement : System.CodeDom.CodeStatement

[System.Runtime.InteropServices.ClassInterface(System.Runtime.InteropServices.ClassInterfaceType.AutoDispatch)]
[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public class CodeThrowExceptionStatement : System.CodeDom.CodeStatement

type CodeThrowExceptionStatement = class
    inherit CodeStatement

[<System.Runtime.InteropServices.ClassInterface(System.Runtime.InteropServices.ClassInterfaceType.AutoDispatch)>]
[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Serializable>]
type CodeThrowExceptionStatement = class
    inherit CodeStatement

Public Class CodeThrowExceptionStatement
Inherits CodeStatement

Ereditarietà

Object

CodeObject

CodeStatement

CodeThrowExceptionStatement

Attributi

ClassInterfaceAttribute ComVisibleAttribute SerializableAttribute

Esempio

In questo esempio viene illustrato l'uso di per CodeThrowExceptionStatement generare un nuovo System.Exceptionoggetto .

// This CodeThrowExceptionStatement throws a new System.Exception.
CodeThrowExceptionStatement throwException = new CodeThrowExceptionStatement(
    // codeExpression parameter indicates the exception to throw.
    // You must use an object create expression to new an exception here.
    new CodeObjectCreateExpression(
    // createType parameter inidicates the type of object to create.
    new CodeTypeReference(typeof(System.Exception)),
    // parameters parameter indicates the constructor parameters.
    new CodeExpression[] {} ) );

// A C# code generator produces the following source code for the preceeding example code:

// throw new System.Exception();

 ' This CodeThrowExceptionStatement throws a new System.Exception.
 ' The codeExpression parameter indicates the exception to throw.
 ' You must use an object create expression to new an exception here.
 Dim throwException As New CodeThrowExceptionStatement( _
New CodeObjectCreateExpression( _
    New CodeTypeReference(GetType(System.Exception)), _
    New CodeExpression() {}))

 ' A Visual Basic code generator produces the following source code for the preceeding example code:

 ' Throw New System.Exception

Commenti

CodeThrowExceptionStatement può rappresentare un'istruzione che genera un'eccezione. L'espressione deve essere o restituire un riferimento a un'istanza di un tipo che deriva dalla Exception classe .

La ToThrow proprietà specifica l'eccezione da generare.