DataGridView.ProcessRightKey(Keys) 方法
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
处理向右键。
protected:
bool ProcessRightKey(System::Windows::Forms::Keys keyData);protected bool ProcessRightKey (System.Windows.Forms.Keys keyData);member this.ProcessRightKey : System.Windows.Forms.Keys -> boolProtected Function ProcessRightKey (keyData As Keys) As Boolean参数
返回
如果已处理该键，则为 true；否则为 false。
例外
“向右箭头”键将导致该控件进入编辑模式，但当前新的单元格的 EditType 属性不指示派生自 Control 并实现 IDataGridViewEditingControl 的类。
此操作将提交一个单元格值或者进入编辑模式，但是数据源中的错误禁止执行此操作，DataError 事件没有处理程序，或者处理程序已将 ThrowException 属性设置为 true。
示例
下面的代码示例演示如何通过重写 ProcessDataGridViewKey 和 ProcessDialogKey 方法来更改子类中 DataGridView Enter 键的行为。 在此示例中，Enter 键的行为与向右键相同，使用户能够更轻松地编辑单行数据中的多个单元格。
public class CustomDataGridView : DataGridView
{
protected override bool ProcessDialogKey(Keys keyData)
{
// Extract the key code from the key value.
Keys key = (keyData & Keys.KeyCode);
// Handle the ENTER key as if it were a RIGHT ARROW key.
if (key == Keys.Enter)
{
return this.ProcessRightKey(keyData);
}
return base.ProcessDialogKey(keyData);
}
protected override bool ProcessDataGridViewKey(KeyEventArgs e)
{
// Handle the ENTER key as if it were a RIGHT ARROW key.
if (e.KeyCode == Keys.Enter)
{
return this.ProcessRightKey(e.KeyData);
}
return base.ProcessDataGridViewKey(e);
}
}
Public Class CustomDataGridView
Inherits DataGridView
<System.Security.Permissions.UIPermission( _
System.Security.Permissions.SecurityAction.LinkDemand, _
Window:=System.Security.Permissions.UIPermissionWindow.AllWindows)> _
Protected Overrides Function ProcessDialogKey( _
ByVal keyData As Keys) As Boolean
' Extract the key code from the key value.
Dim key As Keys = keyData And Keys.KeyCode
' Handle the ENTER key as if it were a RIGHT ARROW key.
If key = Keys.Enter Then
Return Me.ProcessRightKey(keyData)
End If
Return MyBase.ProcessDialogKey(keyData)
End Function
<System.Security.Permissions.SecurityPermission( _
System.Security.Permissions.SecurityAction.LinkDemand, Flags:= _
System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)> _
Protected Overrides Function ProcessDataGridViewKey( _
ByVal e As System.Windows.Forms.KeyEventArgs) As Boolean
' Handle the ENTER key as if it were a RIGHT ARROW key.
If e.KeyCode = Keys.Enter Then
Return Me.ProcessRightKey(e.KeyData)
End If
Return MyBase.ProcessDataGridViewKey(e)
End Function
End Class
