fisherbrsnch00
asked on
Removing item from Listbox Using ItemData
Basically I have two listboxes. When the user clicks the add button, selected items are removed from one and added to the other, it works both ways.
I have no problem adding selected items from one listbox to the other but the problem comes when I try to remove an item. Here is the code:
--------------------------
Dim index As Integer
For index = 0 To ListTables.ListCount - 1
If ListTables.Selected(index)
ListSelectedTables.AddItem
ListTables.RemoveItem (index)
End If
Next index
--------------------------
The problem occurs after an item is removed. I get an "Invalid propery array index" error when the index is referenced after. I believe that the problem has to do with the fact that the listcount and indexes are changed once an item is removed, but it is still in a loop. Anyway, I know that the item data property is used so that a specific number is assigned to each item so that it does not matter what order they are in and can still be referenced. Problem is I can not remember how to use it through code.
Can someone please give a quick example of using item data to reference items in a listbox and/or if there is a better way without using it.
This question is urgent, thank you.
I have no problem adding selected items from one listbox to the other but the problem comes when I try to remove an item. Here is the code:
--------------------------
Dim index As Integer
For index = 0 To ListTables.ListCount - 1
If ListTables.Selected(index)
ListSelectedTables.AddItem
ListTables.RemoveItem (index)
End If
Next index
--------------------------
The problem occurs after an item is removed. I get an "Invalid propery array index" error when the index is referenced after. I believe that the problem has to do with the fact that the listcount and indexes are changed once an item is removed, but it is still in a loop. Anyway, I know that the item data property is used so that a specific number is assigned to each item so that it does not matter what order they are in and can still be referenced. Problem is I can not remember how to use it through code.
Can someone please give a quick example of using item data to reference items in a listbox and/or if there is a better way without using it.
This question is urgent, thank you.
ASKER
With that code I get the same error
ASKER CERTIFIED SOLUTION
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Missed the statement
If index >= List1.ListCount - 1 Then Exit For
Sorry..:)
If index >= List1.ListCount - 1 Then Exit For
Sorry..:)
ASKER
Thank you, works great!
dim LstCountas integer
LstCount = ListTables.ListCount - 1
For index = 0 To LstCount
If ListTables.Selected(index)
ListSelectedTables.AddItem
ListTables.RemoveItem (index)
End If
LstCount = LstTables.ListCount - 1
Next
The LstTables.Listcount That u use in the for loop doesnot change even if u r removing items..either u use While loop or use above loop for ur code and test it..