Can you make a contol resizeable that has inherited from UserControl?

I have a user control that pops up much like intellisense in visual studio to display a range of navigable options when a key combo is pressed within a textbox. I have called the user control within the parent form and programmatically called it using the following code within the parent form.

MyUserControl control1 = new MyUserControl;

control1.BorderStyle = BorderStyle.FixedSingle;

this.Controls.Add(control1);

control1.Focus();

control1.BringToFront();

control1.Show();

How do I go about making my new popup control resizeable

the only options I have under BorderStyle is FixedSingle and Fixed3D.

thanks

skoya