Determines whether the controls contained in an System.Web.UI.WebControls.ImageField object support callbacks.
The ImageField.ValidateSupportsCallback method is a helper method used to determine whether the controls contained in an System.Web.UI.WebControls.ImageField object support callbacks. This method has been implemented as an empty method (a method that does not contain any code) to indicate that callbacks are supported.
This method is used primarily by control developers.