LinqDataSourceInsertEventArgs.Exception 属性

定义

获取在执行插入操作之前验证数据时引发的异常。Gets the exception that was thrown while the data was being validated before the insert operation.

public:
 property System::Web::UI::WebControls::LinqDataSourceValidationException ^ Exception { System::Web::UI::WebControls::LinqDataSourceValidationException ^ get(); };
public System.Web.UI.WebControls.LinqDataSourceValidationException Exception { get; }
member this.Exception : System.Web.UI.WebControls.LinqDataSourceValidationException
Public ReadOnly Property Exception As LinqDataSourceValidationException

属性值

LinqDataSourceValidationException

如果发生错误,则为该异常;否则为 nullThe exception, if an error occurred; otherwise, null.

示例

下面的示例演示事件的处理程序 InsertingThe following example shows a handler for the Inserting event. 它通过使用控件显示任何验证异常消息 LabelIt displays any validation exception messages by using a Label control.

Protected Sub LinqDataSource_Inserting(ByVal sender As Object, _  
        ByVal e As LinqDataSourceInsertEventArgs)  
    If (e.Exception IsNot Nothing) Then  
        For Each innerException As KeyValuePair(Of String, Exception) _  
               In e.Exception.InnerExceptions  
            Label1.Text &= innerException.Key & ": " & _  
                innerException.Value.Message + "<br />"  
        Next  
        e.ExceptionHandled = True  
    End If  
End Sub  
protected void LinqDataSource_Inserting(object sender,   
        LinqDataSourceInsertEventArgs e)  
{  
    if (e.Exception != null)  
    {  
        foreach (KeyValuePair<string, Exception> innerException in   
             e.Exception.InnerExceptions)  
        {  
        Label1.Text += innerException.Key + ": " +   
            innerException.Value.Message + "<br />";  
        }  
        e.ExceptionHandled = true;  
    }  
}  

注解

如果在执行插入操作之前引发验证异常,则该异常将存储在 Exception 属性中。If a validation exception is thrown before the insert operation is performed, the exception is stored in the Exception property. 在事件的处理程序中 Inserting ,可以通过属性检索异常 ExceptionIn a handler for the Inserting event, you can retrieve the exception through the Exception property.

适用于