Control Arrays in VBA?

Sanchin · March 14th, 2008, 01:33 AM

I understand it should be possible to create a control array in VB6 to make changes to multiple controls on a single from by looping through the index. However, I'm using Excel VBA, and I have simple changes to a form based upon choices in a combo box, and I'm not able to find a way to loop through multiple text boxes or labels to make changes without writing code over and over again (ugh!) This should be simple, maybe I just need some syntax help. . .here's what I have:
Ex:
Private Sub CmbBox1_Change()
    Select Case CmbBox1.Value
        Case "Spread"
        TxtBox6.Enabled = True
        TxtBox6.BackColor = QBColor(15)
        TxtBox7.Enabled = True
        TxtBox7.BackColor = QBColor(15)
        TxtBox8.Enabled = True
        TxtBox8.BackColor = QBColor(15)
        TxtBox9.Enabled = True
        TxtBox9.BackColor = QBColor(15)
        TxtBox10.Enabled = True
        TxtBox10.BackColor = QBColor(15)
    End Select
End Sub

As you can see, the text box are named sequentially. Shouldn't it be fairly easy to loop through the text box names by incrementing a variable and adding it to the name? i.e.
Dim inti As Integer
For i 6 To 10
TxtBox[i].Enabled = True
TxtBox[i].BackColor = QBColor(15)
Next i

This would make sense to me, but each time I try this method I continue to get "Invalid Qualifier". Any suggestions? As an added item, I have not been able to implement any control arrays, and have no experience doing so. If I can create control arrays, that would be great! Any help is appreciated!

Shasur · March 14th, 2008, 08:06 AM

You can try the following

For Each ctl In UserForm1.Controls
    If TypeName(ctl) = "TextBox" Then
        ctl.Enabled = True
        ctl.BackColor = QBColor(15)
    End If

Next ctl

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Sanchin · March 15th, 2008, 02:26 AM

This method does work! Thanks so much, but I'm having trouble with one item. Is there any way for me to use this code and have the ability to choose which controls the changes apply to? For instance, this code would apply the changes to all the controls chosen ( TextBox ), but I would like it to only refer to a limited number of them. Is that possible?

tstav · March 24th, 2008, 04:20 PM

Quote:

quote:Originally posted by Sanchin
Is there any way for me to use this code and have the ability to choose which controls the changes apply to?

Yes there is.

Code:

Dim i As Integer
For i = 6 To 10
   UserForm1.Controls("TextBox" & i).Enabled = True
   UserForm1.Controls("TextBox" & i).BackColor = QBColor(15)
Next