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Thread: Help with ActiveX Listbox control in Excel

  1. #1

    Thread Starter
    New Member
    Join Date
    Aug 2005
    Posts
    1

    Help with ActiveX Listbox control in Excel

    Hi,

    I’m experiencing some annoying problems with activex listbox controls that I’m hoping someone with greater experience than I can help me out with.

    I have an Excel spreadsheet that contains an embedded activex listbox control. When the user makes a selection in the listbox, the Listbox_Click() event is triggered more than twice when I programmatically set the value of the listbox. In other words, the sequence of events are as follows:
    1. User makes a selection in the listbox
    2. Listbox_Click() event fires once and runs to completion in most situations. However, in certain circumstances, step2 repeats 5-6 times when I set the value of the listbox programmatically! This occurs even if the EnableEvents and EnableCalculation properties of the Application and Sheet property are set to False.
    3. Focus and control returned back to Excel spreadsheet containing the control.

    The code in the Click event is pretty simple:

    Private Sub ListBox1_Click()

    MsgBox "ListBox1 Click() Event Fired"

    If ListBox1.Value = 0 Then
    ListBox1.Value = 1
    End If

    End Sub

    From the code, one would expect the Click event to be fired a total of two times: once when the user selects the first item, and second when the selection is changed to the next row programmatically by changing the value of the listbox. What's going on?

    Relevant properties of the listbox are given below:
    Name: LikeItemsListBox
    Autoload: False
    BoundColumn: 1
    Enabled: True
    LinkedCell:
    Locked: True
    Multiselect: 0-fmMultiSelectSingle
    Textcolumn: -1
    Value:

    Any ideas?

    Thanks a lot for your help.

    Amit
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  2. #2
    Frenzied Member yrwyddfa's Avatar
    Join Date
    Aug 2001
    Location
    England
    Posts
    1,253

    Re: Help with ActiveX Listbox control in Excel

    Have you got code in a change event? There are other events that may need the same safety trap that you have here.
    "As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality." - Albert Einstein

    It's turtles! And it's all the way down

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