Visual Basic Concepts
The method for adding child controls to a CoolBar control is slightly different from that of adding controls to other containers. The control must first be associated with a Band object; there is a limit of one child control per band.
To add a control to a CoolBar
The child control will then move and resize along with the Band object at run time.
Note If you simply add a control without associating it to a band, it will appear as a floating control over the CoolBar at run time. To avoid this situation, set the Visible property of the control to False.
You can have additional controls contained on a CoolBar and swap them in and out at run time using the Child property of the Band object.