How do I call a function in Form1 from Form2

[Pater]

I have Form1 and Publick Function X() that loads data into a combo box in that form.

In my Form2 when I add a new customer how do I call Function X()in Form1 so it will execute and effect the data in Form1.

I tried in Form2 on Button Click event:
Dim Form1 as new Form1
Form1.X()
'but didn't work. What else I can try?

[Administrator]

If this is an mdi then the form2 can case (Form1)this.mdiparent or if this is an sdi then I try this.parent

> I have Form1 and Publick Function X() that loads data into a combo box in that form.
>
> In my Form2 when I add a new customer how do I call Function X()in Form1 so it will execute and effect the data in Form1.
>
>
> I tried in Form2 on Button Click event:
> Dim Form1 as new Form1
> Form1.X()
> 'but didn't work. What else I can try?
>
>

[Peter]

Thank you for your replay.
Please if you can specify in VB instead of C#.