Hello, I'm pretty much new to VB, haven't done any programing for many years - so please be gentle.
I've set up a form with 50 checkboxes. To save 100's of lines of If .. Then code I wouild like to query/manipulate the checkboxes with For Loops. The checkboxes are set up as follows:
Checkbox11 ... Checkbox15
Checkbox21 ... Checkbox25
etc, to
Checkbox111 .. Checkbox115
I've tried the code below but when run it comes up with an error 'Object reference not set to an instance of an object.' Which I do not understand.
The code above is my adaption of the following, which I found on another site as a solution to a similar problem.
Any help with this would be much appreciated. I'm using VS2012.
I've set up a form with 50 checkboxes. To save 100's of lines of If .. Then code I wouild like to query/manipulate the checkboxes with For Loops. The checkboxes are set up as follows:
Checkbox11 ... Checkbox15
Checkbox21 ... Checkbox25
etc, to
Checkbox111 .. Checkbox115
I've tried the code below but when run it comes up with an error 'Object reference not set to an instance of an object.' Which I do not understand.
Code:
Dim x As Integer
Dim y As Integer
If ListBox1.Text = "All Instruments" Then
For x = 10 To 110 Step 10
For y = 2 To 5
Me.Controls("checkbox" & (x + y)).Visible = False
Next y
Next x
End IfCode:
For I = 1 To 4
Me.Controls("Checkbox" & I).Value = True