[2005] combobox question

[Giraffe Frenzy]

Hi All,

I hope you are able to help me with this.

When you type text into a combo, I want to be able to hit "enter" and get a message box with the text I just entered into the combo box. Below is the code I have currently, but I can not seem to get it to work correctly.

 
Private Sub cbDisplay_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles cbDisplay.KeyDown
	If cbDisplay.SelectedItem = Nothing Then
		MsgBox(cbDisplay.Text)
	end if
End Sub

[stimbo]

Private Sub ComboBox1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) _
    Handles ComboBox1.KeyDown
 
        If e.KeyCode = Keys.Enter And Me.ComboBox1.Text <> String.Empty Then
            MessageBox.Show(Me.ComboBox1.Text)
        End If
 
End Sub

[talkro]

private sub comboBox1_KeyPress(sender as object, e as KeyEventArgs)
  if e.KeyCode = Keys.Enter then messageBox.show(combobox1.text)
end sub

[robertx]

Private Sub cbDisplay_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles cbDisplay.KeyDown
If e.KeyCode = Keys.Enter Then
      MsgBox(cbDisplay.Text)
End If
End Sub

[Giraffe Frenzy]

talkro and robertx,

When I use your code, I get a blank message box.

[robertx]

That's because there is no text in the combo box. Use stimbo's code which tests for an empty string and does not display a message box if there is no text displayed.

[Giraffe Frenzy]

robertx,

stimbo's code returns nothing even when I have text in the combo box

[stimbo]

Charming,

You are simply doing something wrong then.

I noticed in your code you have a keypress address but a key down handle which could be causing a problem.

Re-create the subroutine and try again. Everybody's code is correct, mine just had that extra check of not showing the messagebox if the combobox was empty.

[Giraffe Frenzy]

stimbo,

My dropdownstyle is set to "simple". This is the monkey throwing the wrench. Can you think of a work around for this?

Thank you for you help

[stimbo]

I would imagine that the event still fires no matter what the dropdown style is.

Although I seem to remember having a problem with events firing twice depending on menu style. If that's the case then you could try putting the code in the Key Up event instead.

[Giraffe Frenzy]

the Key Up event does not work either. When I press "Enter", the all the text is cleared from the box.

[stimbo]

Sigh. Could you show us exactly what code you have now.

[Giraffe Frenzy]

Sure,

The below code works if the combo box is set to "DropDown". If it is set to "Simple" (the style that I need) then it does not work.

    Private Sub ComboBox1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) _
      Handles ComboBox1.KeyDown

        If e.KeyCode = Keys.Enter And Me.ComboBox1.Text <> String.Empty Then
            MessageBox.Show(Me.ComboBox1.Text)
        End If

    End Sub

[stimbo]

It works for me when set to simple. Although it does fire twice as I thought it might. One workaround for that would be put it in the keyUp event as I said although you can't get it to work at all which is very strange.

I'm out of ideas. Anyone else have a problem with it firing the Dropdown style is set to Simple? Could it be a service pack issue? (Clutching at straws now)

[Giraffe Frenzy]

bah, I am still trying to get this thing to work. Thank you for your help though stimbo, much appreciated.

Does anyone have any ideas about this?