Remove the Close button in the program title bar.

Question

Purpose:
You do not want the user to use the X icon (in the upper right part of the program screen) to exit the program.

Problem:
Not sure how to remove this icon, which allows the user to exit the program?

Answer 1

You can set the ControlBox property to false if you do not want this to be displayed. It will also remove the minimize and maximize buttons, mind you.

I also ask you to consider why you want to remove this button. Sometimes it makes sense to override the OnFormClosing method and, if necessary, set Cancel to true under certain conditions (for example, e.CloseReason == CloseReason.UserClosing ).

Answer 2

 myForm.ControlBox = false; 

Apparently, I should have at least 30 characters in my message, so I will say that I accept WinForms since you are not specifying yourself. Also note that setting this property to false will remove the minimize and maximize buttons.

Answer 3

 myform.ControlBox = false; 

does it for me

Answer 4

This guy seems to understand this:

http://blogs.msdn.com/b/atosah/archive/2007/05/18/disable-close-x-button-in-winforms-using-c.aspx

Answer 5

I used it and its work for me

 this.ControlBox = false;