InvalidEnumArgumentException 類別

定義

public ref class InvalidEnumArgumentException : ArgumentException

public class InvalidEnumArgumentException : ArgumentException

[System.Serializable]
public class InvalidEnumArgumentException : ArgumentException

type InvalidEnumArgumentException = class
    inherit ArgumentException

[<System.Serializable>]
type InvalidEnumArgumentException = class
    inherit ArgumentException

Public Class InvalidEnumArgumentException
Inherits ArgumentException

繼承

Object

Exception

SystemException

ArgumentException

InvalidEnumArgumentException

屬性

SerializableAttribute

範例

下列程式碼範例示範如何攔截例外狀況 InvalidEnumArgumentException 並解讀其內容。The following code example shows how to catch an InvalidEnumArgumentException exception and interpret its content. 此範例會嘗試將不正確列舉值 (MessageBoxButtons) 透過轉換來傳遞，作為 MessageBox.Show 方法的第三個引數。The example attempts to pass an invalid enumeration value (MessageBoxButtons) through casting, as the MessageBox.Show method's third argument. 攔截到例外狀況時，此範例會提取個別的錯誤訊息、不正確參數、堆疊追蹤和例外狀況的來源。Upon catching the exception, the example fetches the respective error message, the invalid parameter, stack trace, and origin of the exception.

try
{
   //Attempting to pass an invalid enum value (MessageBoxButtons) to the Show method
   MessageBoxButtons myButton = (MessageBoxButtons)123; // to fix use System::Windows::Forms::DialogResult::OK;

   MessageBox::Show( this,  "This is a message",  "This is the Caption", myButton );
}
catch ( InvalidEnumArgumentException^ invE ) 
{
   Console::WriteLine( invE->Message );
   Console::WriteLine( invE->ParamName );
   Console::WriteLine( invE->StackTrace );
   Console::WriteLine( invE->Source );
}

try 
{
// Attempts to pass an invalid enum value (MessageBoxButtons) to the Show method
    MessageBoxButtons myButton= (MessageBoxButtons) 123;
    MessageBox.Show("This is a message","This is the Caption",myButton);
}
catch(InvalidEnumArgumentException invE) 
{
    Console.WriteLine(invE.Message);
    Console.WriteLine(invE.ParamName);
    Console.WriteLine(invE.StackTrace);
    Console.WriteLine(invE.Source);
}

Try
    ' Attempts to pass an invalid enum value (MessageBoxButtons) to the Show method
    Dim myButton As MessageBoxButtons
    myButton = CType(123, MessageBoxButtons)
    MessageBox.Show("This is a message", "This is the Caption", myButton)
Catch invE As System.ComponentModel.InvalidEnumArgumentException
    Console.WriteLine(invE.Message)
    Console.WriteLine(invE.ParamName)
    Console.WriteLine(invE.StackTrace)
    Console.WriteLine(invE.Source)
End Try

備註

如果您將不正確列舉值傳遞給方法或設定屬性時，就會擲回這個例外狀況。This exception is thrown if you pass an invalid enumeration value to a method or when setting a property.

建構函式

屬性

方法

事件

適用於