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  1. #1
    Join Date
    Sep 2003
    Posts
    2

    Unanswered: problem with ComboBox.ListIndex

    hi,
    i'm having a bit of trouble with listindex...
    i have a combobox containing two columns which is sourced from a table with two fields as it's primary key.
    thus when i try to fill in a combobox from the database i must ensure that the value i set for the combobox is matches up with both fields (eg. first name and last name).
    say i'm after Sarah Jones and i have several Sarah's in list, like:
    - Rylie Coles
    - Sarah Bills
    - Sarah Farrington
    - Sarah Jones
    - Tom Harley
    the table is in the alphabetical order of first name then last name.
    this is the part of code i have to check for the right person...

    1 With rstPerson
    2 Me.cmbName.SelText = Trim(![fName])
    3 While Trim(Me.cmbName.Column(0)) = Trim(![fName]) And _
    4 Me.cmbName.Column(1) <> Str(![lName])
    5 cmbName.ListIndex = cmbName.ListIndex + 1
    6 Wend
    7 End With

    however, MS Access fails to update the combo box with the appointed ListIndex item and automatically updates it with the very first item of the list of matching items ie Sarah Bills.

    i gathered this as when i replace line 5 with
    cmbName.ListIndex = cmbName.ListIndex +3
    it returned "Tom Harley" and exited the loop...

    is this a bug or am i just not using it right???

    ps. when testing the code above, set a break to not fall into a forever loop...

  2. #2
    Join Date
    Jan 2003
    Location
    Rockville, MD
    Posts
    179
    The listindex property is read-only.

    When you change the value of a combo box, it's listindex will contain the sequential number of the selected item, beginning with 0 for the 1st item in the list.

  3. #3
    Join Date
    Apr 2003
    Posts
    280
    Are you trying update the combo box by referencing it to a table or are you using the Value List property of the combo box.

  4. #4
    Join Date
    Sep 2003
    Posts
    2

    Unhappy

    JTRockville - hmm... but i CAN actually set the listindex... i can set the listindex to the names 'Rylie Coles', 'Sarah Bills' and 'Tom Harley' in the example above, just not 'Sarah Farrington' or 'Sarah Jones'...

    lansing - the lines before the example code read:

    Set Dbh = CurrentDb
    Set rstPerson = Dbh.OpenRecordset(sqlStatement, dbOpenDynaset)

    so what i do is, when 'personal details form' is opened, i open up the record of a person and update the fields from that recordset.
    the combo box has its row source from 'person table' displaying first names and last names of people
    the combo box stores the value of people's first names
    Person table contains three fields: id, fName, lName
    to answer your question, i guess i update it from a recordset using the first name, then check that it's the right person by comparing the last names, and if it's not the right person then i update the combo box to the next person in the combo box list by incrementing the listindex value and repeat the checking process..

    if what i am trying to do is not possible... then how do i create a combo box of people's full names and have it updated, given that people can have the same first name or the same last name but not the same full name???

  5. #5
    Join Date
    Apr 2003
    Posts
    280
    Ok, I see that your linking the table data to the combo box. Anyways, say that the combo box name is cboNames. Ok, do a cboName.Refresh, this will refresh the sql query. Anyways, for the duplicate names. There is a possibility that two people has the same first name and last name. So you either have to set the ID, First, and last name as the primary key unless the ID is there social security number, so you just set that as the primary key.

    To do a search if there is a possiblity of the same name. Do a filter property like Tablename.Filter = "FirstName = ' " & txtFirstName & "' And LastName = '" & txtLastName &" ' "
    Last edited by lansing; 10-01-03 at 12:31.

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