DataGridView.OnCellEnter(DataGridViewCellEventArgs) DataGridView.OnCellEnter(DataGridViewCellEventArgs) DataGridView.OnCellEnter(DataGridViewCellEventArgs) DataGridView.OnCellEnter(DataGridViewCellEventArgs) Method

定义

引发 CellEnter 事件。Raises the CellEnter event.

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

参数

异常

eColumnIndex 属性值大于控件中的列数减一。The value of the ColumnIndex property of e is greater than the number of columns in the control minus one.

- 或 --or- eRowIndex 属性值大于控件中的行数减一。The value of the RowIndex property of e is greater than the number of rows 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.

OnCellEnter 方法还允许派生类对事件进行处理而不必附加委托。The OnCellEnter 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 OnCellEnter(DataGridViewCellEventArgs) 时,一定要调用基类的 OnCellEnter(DataGridViewCellEventArgs) 方法,以便已注册的委托对事件进行接收。When overriding OnCellEnter(DataGridViewCellEventArgs) in a derived class, be sure to call the base class's OnCellEnter(DataGridViewCellEventArgs) method so that registered delegates receive the event.

适用于

另请参阅