What Am I Doing Wrong.....

  • Thread starter Thread starter Brian P. Hammer
  • Start date Start date
B

Brian P. Hammer

Hi all,


I have a button where when clicked, I want it to remove some controls from my form.

Private Sub cmdHide1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdHide1.Click
Dim ctrl As Control
For Each ctrl In Me.Controls
If ctrl.tag = "Aircraft1" Then
Me.Controls.Remove(ctrl)
End If
Next ctrl
End Sub

This produces an error of:
An unhandled exception of type 'System.NullReferenceException' occurred in Financial Model.exe
Additional information: Object reference not set to an instance of an object.


In a test form, if I only have a couple of text boxes and one button, it throws the exception too. What am I missing?

Thanks,
Brian Hammer
 
Try Next instead of Next ctrl

Oeyvind


"Brian P. Hammer" <[email protected]> skrev i melding
Hi all,

I have a button where when clicked, I want it to remove some controls from
my form.

Private Sub cmdHide1_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles cmdHide1.Click
Dim ctrl As Control
For Each ctrl In Me.Controls
If ctrl.tag = "Aircraft1" Then
Me.Controls.Remove(ctrl)
End If
Next ctrl
End Sub

This produces an error of:
An unhandled exception of type 'System.NullReferenceException' occurred in
Financial Model.exe
Additional information: Object reference not set to an instance of an
object.


In a test form, if I only have a couple of text boxes and one button, it
throws the exception too. What am I missing?

Thanks,
Brian Hammer
 
Back
Top