Can I disable the 'close' button of a form using C#?
30486
Disabling the Close-Button temporarily
28144
How to close entire application when application has more than 2 forms without showing messagebox more than once
111841
How to prevent form from being submitted?
132765
How to stop BackgroundWorker on Form's Closing event?
157760
Set all panels to be closed by default or remember settings by file?
119490
Don't close the flag dialog when I'm in the middle of typing something in a textbox
142139
How to disable the command prompt's auto-close upon completion?
26591
How to prevent users from killing C# Application
58574
How to disable a button more elegantly
12609
Preventing console window from closing on Visual Studio C/C++ Console application
140987
How to suppress a dialog box displayed by code that I can't change?
20105
Visually remove/disable close button from title bar .NET
144940
How to access form methods and controls from a class in C#?
5901
What exactly happens with the button "Leave Open" (previously "Do Not Close")?
122282
WinForms: How to programmatically fire an event handler?
23903
How to disallow tab key to switch focus between edit control and button within dialog box?
36055
Handling a Click for all controls on a Form