CODEWITHSUNDEEP
.netvb.netwinforms
xpda
xpda

Reputation: 15813

How do you set the focus onto a control with Alt-D?

I would like to set the focus onto a control when the user presses Alt+D. However, Alt+D sets the focus on the first item in the menustrip after setting the focus in the keydown event handler.

Setting the form KeyPreview to True and e.Handled to true when the Alt key is pressed has no effect.

D is an arbitrary key for this example -- it happens on all alpha keys.

I'm using vb.net 2008.

Sample code:

Private Sub Form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown

If e.Alt And e.KeyCode = Keys.D Then
  Button1.Focus()
  e.Handled = True
End If

End Sub

Sample form, after pressing Alt+D. Focus was on Button2 before pressing Alt+D.

enter image description here

Upvotes: 1

Views: 237

Answers (2)

Patrick Hofman
Patrick Hofman

Reputation: 156958

You should override the ProcessDialogKey method.

This code will do:

Protected Overrides Function ProcessDialogKey(ByVal keyData As Keys) As Boolean

If keyData = (Keys.Alt Or Keys.D) Then
  Call Form1_KeyDown(Nothing, New KeyEventArgs(Keys.Alt Or Keys.D))
  Return True
Else
  Return MyBase.ProcessDialogKey(keyData)
  End If

End Function

Upvotes: 2

AdorableVB
AdorableVB

Reputation: 1393

Protected Overrides Function ProcessCmdKey(ByRef msg As Message, ByVal keyData As Keys) As Boolean
    If keyData = Keys.Alt And keyData = Keys.D Then
        Button1.Focus()
    End If
    Return True 'im not sure about this, I forgot the code
    Return MyBase.ProcessCmdKey(msg, keyData)
End Function

Upvotes: 2

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