[2005] combobox question

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.

Code:

---


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

---

2 Code:

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

vb Code:

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

Code:

---

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

---

talkro and robertx,

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

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.

robertx,

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

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.

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 :wave:

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.

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

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

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.

Code:

---

    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

---

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)

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? :(