<div>
The idea is that whenever your change, say for example modify text in a textbox, in the respective event a global FLAG could be set. Say for example IsModified = true.<br />
Once user Save/Cancel then the flag should be reset IsModified = false.<br />
<br />
If IsModified = true and user tries to close the application, then the user could be prompted.
</div>


The idea is that whenever your change, say for example modify text in a textbox, in the respective event a global FLAG could be set. Say for example IsModified = true.
Once user Save/Cancel then the flag should be reset IsModified = false.

If IsModified = true and user tries to close the application, then the user could be prompted.

<div>
Thanks EaswaranP.<br />
But what if my application has hundreds of Controls such as Textbox, Combobox, checkbox, dgv, etc, it would be tedious to add a flag to every event handler.
</div>


Thanks EaswaranP.
But what if my application has hundreds of Controls such as Textbox, Combobox, checkbox, dgv, etc, it would be tedious to add a flag to every event handler.

<div>
Thanks julianH and EaswaranP.<br />
These links are excellent references!!
</div>


Thanks julianH and EaswaranP.
These links are excellent references!!

<div>
<div class="content wysiwyg-content">
Hi experts<br />
I am developing a C# .NET 3.5 applications using Winform.<br />
<br />
I wonder how to detect user has made any changes so that it will prompt the user to save settings before exiting from the application.<br />
<br />
Thanks in advance.
</div>
</div>


Hi experts
I am developing a C# .NET 3.5 applications using Winform.

I wonder how to detect user has made any changes so that it will prompt the user to save settings before exiting from the application.

Thanks in advance.

How to detect if user has made changes to a windows application in C#

Microsoft applications include a variety of software programs, including development and digital authoring programs (Expression and Media Center), educational programs, Internet software, including Essentials, Skype and the Live family, anti-virus, productivity applications and suites like Office, Excel, Word, Outlook, Access and PowerPoint, video games and server applications such as Exchange, SharePoint, IIS and Virtual Server.

Microsoft Applications

The .NET Framework is not specific to any one programming language; rather, it includes a library of functions that allows developers to rapidly build applications. Several supported languages include C#, VB.NET, C++ or ASP.NET.

.NET Programming

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).