Select (click once and release) the desired control
Position the cursor on the form and click
With the left mouse button depressed, drag the mouse across the page. A box is drawn on the page
Release the mouse button
NOTE:
Do not
double-click on a toolbox button -- it adds the control directly to the
form, not the frame.
In .NET, you drag the control and drop it on the
frame.
Read about setting control names and control properties.