[2008] Clear radiobuttons in groupbox

Hi there,

Basically, my form has 5 groupboxes with 4 radiobuttons in each groupbox, and I also have 3 textboxes. I have a button in the form in which I can go back to the main screen, and likewise, a button in the main screen to go back to this form.

So when I select the radiobuttons in the groupboxes, and i clicked the main screen, and back to the form, it will clear all selections, including the textboxes. I was able to do that, but if I didn't select any of the radiobuttons, and I clicked the main screen button, it will have an error. "Object reference not set to an instance of an object."

Code:

---

Me.RadioButtons.Checked = False
        Me.RadioButtons1.Checked = False
        Me.RadioButtons2.Checked = False
        Me.RadioButtons3.Checked = False
        Me.RadioButtons4.Checked = False

---

This is part of my code in the Main Screen button.

Any idea how? Thanks.

That error message has nothing to do with that code. When the exception is thrown the IDE will tell you exactly what line the exception was thrown on. You then need to use the debugger to test each reference on that line to see which is null, i.e. Nothing. You then need to work back through your code to the point where you expected an object to be assigned to that reference and determine why it wasn't.