通过

DataSet.OnPropertyChanging(PropertyChangedEventArgs) 方法

  • 参考

定义

命名空间:
System.Data
程序集:
System.Data.Common.dll
程序集:
System.Data.dll
程序集:
netstandard.dll
Source:
DataSet.cs
Source:
DataSet.cs
Source:
DataSet.cs

引发 OnPropertyChanging(PropertyChangedEventArgs) 事件。

protected:
 virtual void OnPropertyChanging(System::ComponentModel::PropertyChangedEventArgs ^ pcevent);
protected public:
 virtual void OnPropertyChanging(System::ComponentModel::PropertyChangedEventArgs ^ pcevent);
protected virtual void OnPropertyChanging (System.ComponentModel.PropertyChangedEventArgs pcevent);
protected internal virtual void OnPropertyChanging (System.ComponentModel.PropertyChangedEventArgs pcevent);
abstract member OnPropertyChanging : System.ComponentModel.PropertyChangedEventArgs -> unit
override this.OnPropertyChanging : System.ComponentModel.PropertyChangedEventArgs -> unit
Protected Overridable Sub OnPropertyChanging (pcevent As PropertyChangedEventArgs)
Protected Friend Overridable Sub OnPropertyChanging (pcevent As PropertyChangedEventArgs)

参数

pcevent
PropertyChangedEventArgs

包含事件数据的 PropertyChangedEventArgs。

注解

引发事件时，将通过委托调用事件处理程序。 有关概述，请参阅 处理和引发事件。

继承者说明

在派生类中重写 OnPropertyChanging(PropertyChangedEventArgs) 时，请务必调用基类的 OnPropertyChanging(PropertyChangedEventArgs) 方法。

适用于

另请参阅