Trying to wade through that is painful! Please, in future, consider using at least some punctuation...if we can;t read your question, we can't answer it. :laugh:
So, you have two forms:
Form1
Radio button
Combobox
Form2
Textbox
DataGridView
ButtonOne
ButtonTwo
OKButton
You display Form2 when the user checks RadioButton in Form1.
You enter data in the DataGridView and press OK. At this point you want to transfer information from the DataGridView to the Combobox in Form1.
There are a couple of ways to do this: If you use ShowDialog to display Form2, then just let the OK button close Form2, and pick up the new data via properties in teh Form1 code:
Dim f2 As New Form2()
f2.ShowDialog
If you use Show to display the new Form2 instance, then it's more complex: you need to create an event in Form2 which Form1 handles, and then access the Form2 properties in the handler method, using the
sender
parameter to identify the Form2 instance.