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combo box question

Posted on 2000-04-18
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Last Modified: 2010-05-02
I have a combobox (cboValue) that has three values, A, B, and C.  A user can ONLY enter one of these 3 values, so I made the type of combobox a dropdown list.  However I have a clear button (btnClear) that clears the combobox.

Private Sub btnClear_Click()
cboValue.text=""
End sub

But when I click on the btnClear I get an error "Text property is read only".  If I turn the combobox to a dropdown combo it will work, but I do not want users to enter in a value that is not on the list.

Is there a work around?

Thanks
0
Comment
Question by:sopheak
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4 Comments
 
LVL 6

Expert Comment

by:Marine
ID: 2728818
what you can do is you can comare if the value entered is found in the list. You can quickly loop though the list and see if values match. If not then give a message.
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LVL 32

Accepted Solution

by:
Brendt Hess earned 50 total points
ID: 2728838
If the selection in the combobox is not mandatory, add a fourth, blank selection to the box.  On the clear button click, select the first item.

Alternately, set the ListIndex to -1 (not selected) on the clear button click.
0
 
LVL 28

Expert Comment

by:Ark
ID: 2728860
Private Sub btnClear_Click()
  cboValue.Clear
End Sub

Private Sub Form_Load()
  cboValue.AddItem "A"
  cboValue.AddItem "B"
  cboValue.AddItem "C"
  cboValue.ListIndex = 0
End Sub

Cheers
0
 

Author Comment

by:sopheak
ID: 2728869
Thanks bhess1,  setting listIndex to -1 worked
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