/// <summary>
/// Called when data are cleared.
/// </summary>
/// <param name="Implemented">If returns <c>true</c> method was implemented.</param>
/// <returns>Returns result of clear operation.</returns>
public override bool OnClear(out bool Implemented)
{
Implemented = false;
if (ExtensionRef != null)
{
ExtensionRef.OnClear(out Implemented);
}
return(true);
}