Open a form after opening a form

[mainit123]

I have a main form that I use as a start point. Once a checkbox is checked, I successfully open a 2nd form on which is a button. Upon the user clicking that button, I am trying to open a 3rd form called NMember. On the button click action on the 2nd form, I have this code:

Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
NMember.ActiveForm.Enabled = True
NMember.ActiveForm.Activate()
NMember.ActiveForm.Visible = False
'Assume the next line will open the form but it throws an error
NMember.ActiveForm.ShowDialog()
NMember.ActiveForm.Close()
End Sub

But upon clicking the button, I get:
Object reference not set to an instance of an object.

So, it appears I am not truly creating an instance of the NMember form before I tell it to open. The NMember form does exist and up to this point has not been opened.

What am I missing to get this NMember form open upon clicking the button.
Thanks.

 

[mainit123]

I was able to see how to solve this by referencing the form ahead of time using DIM.

Take care and this thread can be closed.