CodeThrowExceptionStatement Klass

Definition

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

Arv

Object

CodeObject

CodeStatement

CodeThrowExceptionStatement

Attribut

ClassInterfaceAttribute ComVisibleAttribute SerializableAttribute

Exempel

Det här exemplet visar hur du använder en CodeThrowExceptionStatement för att skapa en ny 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

Kommentarer

CodeThrowExceptionStatement kan representera en instruktion som utlöser ett undantag. Uttrycket ska vara, eller utvärdera till, en referens till en instans av en typ som härleds från Exception klassen.

Egenskapen ToThrow anger undantaget som ska utlösas.