DataGridView.OnColumnHeaderMouseClick(DataGridViewCellMouseEventArgs) 方法

定义

引发 ColumnHeaderMouseClick 事件。Raises the ColumnHeaderMouseClick event.

protected:
 virtual void OnColumnHeaderMouseClick(System::Windows::Forms::DataGridViewCellMouseEventArgs ^ e);
protected virtual void OnColumnHeaderMouseClick (System.Windows.Forms.DataGridViewCellMouseEventArgs e);
abstract member OnColumnHeaderMouseClick : System.Windows.Forms.DataGridViewCellMouseEventArgs -> unit
override this.OnColumnHeaderMouseClick : System.Windows.Forms.DataGridViewCellMouseEventArgs -> unit
Protected Overridable Sub OnColumnHeaderMouseClick (e As DataGridViewCellMouseEventArgs)

参数

e
DataGridViewCellMouseEventArgs

包含事件数据的 DataGridViewCellMouseEventArgsA DataGridViewCellMouseEventArgs that contains the event data.

异常

eColumnIndex 属性值小于零或大于控件中的列数减一。The value of the ColumnIndex property of e is less than zero or greater than the number of columns in the control minus one.

注解

引发事件时,将通过委托调用事件处理程序。Raising an event invokes the event handler through a delegate. 有关详细信息,请参阅处理和引发事件For more information, see Handling and Raising Events.

OnColumnHeaderMouseClick 方法还允许派生类对事件进行处理而不必附加委托。The OnColumnHeaderMouseClick method also allows derived classes to handle the event without attaching a delegate. 这是在派生类中处理事件的首选技术。This is the preferred technique for handling the event in a derived class.

继承者说明

在派生类中重写 OnColumnHeaderMouseClick(DataGridViewCellMouseEventArgs) 时,一定要调用基类的 OnColumnHeaderMouseClick(DataGridViewCellMouseEventArgs) 方法,以便已注册的委托对事件进行接收。When overriding OnColumnHeaderMouseClick(DataGridViewCellMouseEventArgs) in a derived class, be sure to call the base class's OnColumnHeaderMouseClick(DataGridViewCellMouseEventArgs) method so that registered delegates receive the event.

适用于

另请参阅