Click here to Skip to main content
Click here to Skip to main content
Go to top

Restrict your application from creating a new instance

, 7 Mar 2004
Rate this:
Please Sign up or sign in to vote.
This sample code uses the System.Diagnostics namespace to restrict the application from creating an instance more than once.

Introduction

After spending some time studying the C#, I started to develop some components and applications so i thought before i could jump into articles relating to user controls i could contribute this code snippet that retricts the application from creating multiple instances.

The following code uses the System.Diagnostics namespace to identify the application process name. So you just have to create new windows application project and just replace code in the main function in the form with the code provided below.

static void Main()
Int32 _isProcessRunning;
_isProcessRunning = System.Diagnostics.Process.GetProcessesByName(<BR>  System.Diagnostics.Process.GetCurrentProcess().ProcessName).Length;
if(_isProcessRunning != 1)
{
  MessageBox.Show("Already an Instance running");
}
else
{
  Application.Run(new Form1());
}

Test your application by executing your application exe from the \bin\Debug folder.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

Share

About the Author

rajeshvasan
Web Developer
India India
No Biography provided

Comments and Discussions

 
GeneralNothing new... PinmemberDavid M. Kean8-Mar-04 10:53 
GeneralRe: Nothing new... Pinmemberrajeshvasan8-Mar-04 17:36 
GeneralRe: Nothing new... Pinmembervitaminchik18-Mar-04 8:27 
GeneralRe: Nothing new... Pinmemberhemanext1-Jun-04 23:34 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.

| Advertise | Privacy | Mobile
Web01 | 2.8.140916.1 | Last Updated 8 Mar 2004
Article Copyright 2004 by rajeshvasan
Everything else Copyright © CodeProject, 1999-2014
Terms of Service
Layout: fixed | fluid