CodeThrowExceptionStatement Classe

Definição

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

Herança

Object

CodeObject

CodeStatement

CodeThrowExceptionStatement

Atributos

ClassInterfaceAttribute ComVisibleAttribute SerializableAttribute

Exemplos

Este exemplo demonstra como usar um CodeThrowExceptionStatement para lançar um novo System.Exception.

// 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

Comentários

CodeThrowExceptionStatement pode representar uma instrução que gera uma exceção. A expressão deve ser, ou avaliar, uma referência a uma instância de um tipo que deriva da Exception classe.

A ToThrow propriedade especifica a exceção a ser lançada.