Setting the background colour for a textbox array

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I am trying to set the background colour for a textbox in an array. All other properties are working properly, but the background colour. I am using VB.Net 2008 on Windows XP SP3. Is there something more I have to do get this property to work?

Below is a snippet of the code I am using.

Thanks in advance.

VB

ReDim txtBoxNo(20)
       txtBoxNo(0) = Me.txtNum0
       txtBoxNo(1) = Me.txtNum1
           ...
       ...
       txtBoxNo(18) = Me.txtNum18
       txtBoxNo(19) = Me.txtNum19
       '
       Try
           For iCount = 0 To 19
               With txtBoxNo(iCount)
                   .Enabled = True
                   .BackColor = Color.LightBlue
                   .ForeColor = Red
                   .Enabled = False
                   .Text = CStr(iCount + 1)
               End With
           Next
       Catch ex As Exception
           MsgBox(ex.Message)
           End
       End Try

Posted 25-Feb-12 23:04pm

brodec2000

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Dave Kreskowiak · Answer 1 · 2012-02-26T04:26:00

That's not going to work because you don't define the type of the array. This would work MUCH easier if you used a Generic collection like this:

Dim myTextBoxes As New List(Of TextBox)
myTextBoxes.Add(txtNum0)
myTextBoxes.Add(txtNum1)
myTextBoxes.Add(txtNum2)
...
' BTW: You don't have to put "Me" in front of everything...
...
' and you don't need the exception handling code
...
For i As Integer = 0 To myTextBoxes.Count - 1
    With myTextBoxes(i)
        ' I don't know why you're setting Enabled True and False.
        ' That doesn't do anything in this code.
        .BackColor = Color.LightBlue
        .ForeColor = Red
        .Text = (i + 1).ToString
    End With
Next