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Thread: Comboboxes

  1. #1
    Join Date
    Jun 2003
    Location
    Bloomington, IN, USA
    Posts
    116

    Comboboxes

    Ok, I'm not entirly sure I can rig the row source of a combo box like this or not, so I'm just going to ask.

    I have a table that defines a training course: courseid, name, etc... There can be up to 3 trainers, with field names trainerid, secondtrainerid, thirdtrainerid. each one holds an integer that is an id number linked to the employeeid field in a seprate employee table.

    After you define a training course, you have to schedule a training session. On the form for the training session, I need a combo box to select which of the three possible trainers is teachign that particular session.

    So, how would I go about taking the values from those three fields and make them the row source for the combo box.

    Any help would be most appreciated, and if you need anymore information just let me know.

    Brandon

  2. #2
    Join Date
    Jun 2003
    Location
    Bloomington, IN, USA
    Posts
    116
    I figured out a rather shady/backdoor way to accomplish this. I'm going to post the code, some of it wont make sense, as it includes table names and field names and such, but if anyone else would need to do this, this will prolly work for you to.
    Code:
    Private Sub cboTrainer_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
        
        Dim rst As DAO.Recordset
        Set rst = CurrentDb.OpenRecordset("tblCourse")
        Dim rst1 As DAO.Recordset
        Set rst1 = CurrentDb.OpenRecordset("tblEmployee_Reference")
        Dim con As String
        Dim sql As String
        Dim train1, train2, train3 As String
        
        Do Until rst.EOF
            con = rst!courseID
            If con = Me.cboCourse Then
                train1 = rst!trainerID
                train2 = rst!secondtrainerid
                train3 = rst!thirdtrainerid
                rst.MoveLast
            End If
            rst.MoveNext
        Loop
        
        If Not IsNull(train1) Then
            Do Until rst1.EOF
            con = rst1!Employee_Reference_Number
                 If con = train1 Then
                    train1 = rst1![first name] & " " & rst1![last name]
                    sql = sql & train1 & ";" & rst1!Employee_Reference_Number
                    rst1.MoveLast
                End If
                rst1.MoveNext
            Loop
        End If
        
        If Not IsNull(train2) Then
            Do Until rst1.EOF
            con = rst1!Employee_Reference_Number
                 If con = train2 Then
                    train2 = rst1![first name] & " " & rst1![last name]
                    sql = sql & ";" & train2 & ";" & rst1!Employee_Reference_Number
                    rst1.MoveLast
                End If
                rst1.MoveNext
            Loop
        End If
        
        If Not IsNull(train3) Then
            Do Until rst1.EOF
            con = rst1!Employee_Reference_Number
                 If con = train3 Then
                    train3 = rst1![first name] & " " & rst1![last name]
                    sql = sql & ";" & train3 & ";" & rst1!Employee_Reference_Number
                    rst1.MoveLast
                End If
                rst1.MoveNext
            Loop
        End If
    
        Me.cboTrainer.RowSource = sql
        Me.cboTrainer.Requery
    End Sub
    Hope this will help someone else at some point.

    Brandon

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