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| System.Windows.Forms.DataGrid Does Not Raise KeyDown Event When Tab, Enter, or Arrow Keys Are Pressed |
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This message was discovered on microsoft.public.dotnet.framework.windowsforms.controls.
| Chad Boschert |
I am trying to change the behavior of the enter key within a DataGrid.
The default behavior drops the cursor to the next row - I want the
cursor to go to the next cell (just like the tab key.)
I have my event handler wired up to the KeyDown event of the
DataGridTextBox controls in my DataGrid. The event gets raised for
all keys accept the Tab, Enter, and Arrow Keys.
Any ideas as to how this can be accomplished?
-Chad Boschert
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| walter leinert |
Hi Chad,
may be that you must set the AcceptsReturn property of the DataGridTextBox
to receive the event.
Walter
"Chad Boschert" <Click here to reveal e-mail address> schrieb im Newsbeitrag
news:Click here to reveal e-mail address...
[Original message clipped]
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| Chad Boschert |
Walter, that is a good idea but still doesn't seem to work. If I
enable the acceptstab property the event is raised for the tab key;
I'm not sure what is happening. I also tried enabling the multiline
property - no luck.
- Chad
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| Brendon Webber |
What you need to do is actually capture the windows message and then process that event accordingly. Here is an example where the ProcessCmdKey method is overidden in a customised ComboBox class. Create a custom DataGrid class and override this method.
Hope this helps...
Protected Overrides Function ProcessCmdKey(ByRef msg As System.Windows.Forms.Message, ByVal keyData As System.Windows.Forms.Keys) As Boolean
Dim bHandled As Boolean = False
Try
If bIsReadOnly Then
Return True
End If
If ((keyData = (Keys.Tab Or Keys.Shift)) And (Me.ModifierKeys = Keys.Shift)) Or (keyData = Keys.Left) Then
Return MyBase.ProcessCmdKey(msg, keyData)
ElseIf (keyData = Keys.Tab) Or (keyData = Keys.Enter) Or (keyData = Keys.Return) Then
msg.Result = IntPtr.Zero
If keyData = Keys.Tab Then
Dim e As New FocusChangeEventArgs(FocusDirection.Forward)
RaiseEvent LostFocus(Me, e)
If e.Handled Then
Return True
Else
Return MyBase.ProcessCmdKey(msg, keyData)
End If
Else
System.Windows.Forms.SendKeys.Send(Chr(9))
Return True
End If
Else
Return MyBase.ProcessCmdKey(msg, keyData)
End If
Catch ex As Exception
MsgBox(ex, , "Library > SComboBox > ProcessCmdKey")
End Try
End Function
--------------------------------
From: Brendon Webber
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