BindingManagerDataErrorEventArgs 类

定义

DataError 事件提供数据。Provides data for the DataError event.

public ref class BindingManagerDataErrorEventArgs : EventArgs
public class BindingManagerDataErrorEventArgs : EventArgs
type BindingManagerDataErrorEventArgs = class
    inherit EventArgs
Public Class BindingManagerDataErrorEventArgs
Inherits EventArgs
继承
BindingManagerDataErrorEventArgs

示例

下面的代码示例演示如何使用此类型。The following code example demonstrates the use of this type. 在此示例中, 事件处理程序报告DataError事件的发生。In the example, an event handler reports on the occurrence of the DataError event. 此报表可帮助你了解何时发生事件, 并可帮助你进行调试。This report helps you to learn when the event occurs and can assist you in debugging. 若要报告多个事件或频繁发生的事件, 请考虑ShowConsole.WriteLine消息替换为多行或将TextBox其追加到多行。To report on multiple events or on events that occur frequently, consider replacing Show with Console.WriteLine or appending the message to a multiline TextBox.

若要运行示例代码, 请将其粘贴到一个项目中, 该项目包含从BindingManagerBase继承的类型的实例, 如CurrencyManager PropertyManager或。To run the example code, paste it into a project that contains an instance of a type that inherits from BindingManagerBase, such as a PropertyManager or CurrencyManager. 然后命名该实例BindingManagerBase1 , 并确保事件处理程序DataError与事件相关联。Then name the instance BindingManagerBase1 and ensure that the event handler is associated with the DataError event.

private void BindingManagerBase1_DataError(Object sender, BindingManagerDataErrorEventArgs e) {
    System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
    messageBoxCS.AppendFormat("{0} = {1}", "Exception", e.Exception);
    messageBoxCS.AppendLine();
    MessageBox.Show(messageBoxCS.ToString(), "DataError Event");
}
Private Sub BindingManagerBase1_DataError(sender as Object, e as BindingManagerDataErrorEventArgs) _ 
     Handles BindingManagerBase1.DataError

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "Exception", e.Exception)
    messageBoxVB.AppendLine()
    MessageBox.Show(messageBoxVB.ToString(),"DataError Event")

End Sub

注解

提供在绑定过程中捕获的ExceptionBindingManagerDataErrorEventArgsThe BindingManagerDataErrorEventArgs provides the Exception that was caught in the binding process.

构造函数

BindingManagerDataErrorEventArgs(Exception)

初始化 BindingManagerDataErrorEventArgs 类的新实例。Initializes a new instance of the BindingManagerDataErrorEventArgs class.

属性

Exception

获取在绑定过程中捕获的导致 Exception 事件被引发的 DataErrorGets the Exception caught in the binding process that caused the DataError event to be raised.

方法

Equals(Object)

确定指定的对象是否等于当前对象。Determines whether the specified object is equal to the current object.

(继承自 Object)
GetHashCode()

作为默认哈希函数。Serves as the default hash function.

(继承自 Object)
GetType()

获取当前实例的 TypeGets the Type of the current instance.

(继承自 Object)
MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(继承自 Object)
ToString()

返回表示当前对象的字符串。Returns a string that represents the current object.

(继承自 Object)

适用于