C# 0 The Complete Reference

Top

 and 

Left

, but not by 

setting

Bottom

 and 

Right

 because they are read-only. (To change the size of a control, you 

can use the 

Width

 and 

Height

 properties.)

When the button click event is received, if the top of the control is at its original location 

of 200, the location is changed to 10, 10. Otherwise, it is returned to its original location of 

100, 200. Therefore, each time you click the button, the location of the button changes.

Before 

MyButtonClick( )

 can receive messages, it must be added to the event handler 

chain linked to the button’s 

Click

 event. This is done inside the 

ButtonForm

 constructor, 

using this statement:

MyButton.Click += MyButtonClick;

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After the method is added to the 

Click

 event, each time the button is clicked,