Accesing variable/function in Control using (Control)Sender

Question

Hi I've created a partial class : Control for designing the shape of my polygon. It works well but there's one problem that I tried to find on net but I get nothing. I've created one int named 'size' . Then I created a function named 'Growing' for 'get' and 'set' . When I created an object from that class I just type on the object name.Growing then I can ' get' the size and 'set' the size. This no problem. The problem exist when I created as follow: private void Grow(object sender EventArgs e) { Control controlAll = (Control)sender; } This 'controlAll' is use to track which polygon I choose. but when I run this line of code it seems like controlAll can't get to the function I declared in the class Growing controlAll.Growing = 50; // ERROR WENT HERE Is there any ways to make the control to identified the function that I created in the class ? Any idea ?

Alan · Answer

As the Control class doesn't have a Growing property you need to cast it to the actual type of the Control. If the class name is MyControl then the offending line would need to be: ((MyControl)controlAll).Growing = 50;