Creates a new ControlCollection object to hold the child controls (both literal and server) of the server control.
Assembly: System.Web (in System.Web.dll)
Override this method in a custom server control if you have created a collection object that is derived from the ControlCollection class. You can then instantiate that collection class in the override of this method.
The following code example overrides the method to create an instance of a CustomControlCollection class, which inherits from the ControlCollection class.
The following code example uses the method in a custom server control override of the CreateChildControls method. The new collection is created, and then populated with two child controls, firstControl and secondControl.