Adds a child control to this control.
public void add( Control control )
control
A Control object that represents the child control to be added.
WFCException thrown if the specified control is a top-level control or if adding the new control as a child would result in a circular control reference.
The new child control becomes the last control in the child control list. If the added child control is already a child of another control, it is removed as a child of the first control before being added as a child of this control.