CodeThrowExceptionStatement 类

定义

表示引发异常的语句。

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
继承
CodeThrowExceptionStatement
属性

示例

此示例演示如何使用 a CodeThrowExceptionStatement 引发新 System.Exception值。

// This CodeThrowExceptionStatement throws a new System.Exception.
array<CodeExpression^>^temp0;
CodeThrowExceptionStatement^ throwException = gcnew CodeThrowExceptionStatement( gcnew CodeObjectCreateExpression( gcnew CodeTypeReference( System::Exception::typeid ),temp0 ) );

// 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.
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

注解

CodeThrowExceptionStatement 可以表示引发异常的语句。 表达式应或计算结果为对派生自类的类型实例的 Exception 引用。

ToThrow 属性指定要引发的异常。

构造函数

CodeThrowExceptionStatement()

初始化 CodeThrowExceptionStatement 类的新实例。

CodeThrowExceptionStatement(CodeExpression)

用指定的异常类型实例初始化 CodeThrowExceptionStatement 类的新实例。

属性

EndDirectives

获取包含结束指令的 CodeDirectiveCollection 对象。

(继承自 CodeStatement)
LinePragma

获取或设置代码语句所在的行。

(继承自 CodeStatement)
StartDirectives

获取包含开始指令的 CodeDirectiveCollection 对象。

(继承自 CodeStatement)
ToThrow

获取或设置要引发的异常。

UserData

获取当前对象的用户可定义数据。

(继承自 CodeObject)

方法

Equals(Object)

确定指定对象是否等于当前对象。

(继承自 Object)
GetHashCode()

作为默认哈希函数。

(继承自 Object)
GetType()

获取当前实例的 Type

(继承自 Object)
MemberwiseClone()

创建当前 Object 的浅表副本。

(继承自 Object)
ToString()

返回表示当前对象的字符串。

(继承自 Object)

适用于