DataGridView.ProcessRightKey(Keys) 方法
定义
重要
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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
true 如果已处理密钥，则为否则，为 false.
例外
向右键将导致控件进入编辑模式，但 EditType 新当前单元格的属性并不指示派生自 Control 和实现的 IDataGridViewEditingControl类。
此操作将提交单元格值或进入编辑模式，但数据源中的错误会阻止操作，并且没有事件的处理程序 DataError 或处理程序已将 ThrowException 属性 true设置为 。
示例
下面的代码示例演示如何通过重写DataGridView和ProcessDataGridViewKey方法更改子类中 ProcessDialogKey ENTER 键的行为。 在此示例中，ENTER 键的行为与向右键相同，使用户更容易编辑单个数据行中的多个单元格。
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
