How to use MessageBox in Win Server 2008 R2 using ASP.NET C#

Question

I want to show any type of message using MessageBox in Windows Server 2008 R2 with ASP.NET using C#.

I use bellow this code:

MessageBox.Show("Registration Successfully Completed", "Success!!", MessageBoxButtons.OK, MessageBoxIcon.Information);

But show error:(bellow):

Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.

Please solve this problem.

Abhay Shanker · Answer

You need to add reference of System.Window.Form that would give to add MessageBox in your asp.net application. but the best approach to show message in asp.net is to use javascript from server side as below Page.ClientScript.RegisterStartupScript(this.GetType() clickalert('Registraton Successfully Completed');); }

Satyapriya Nayak · Answer

http://www.codeproject.com/Articles/8173/A-Simple-ASP-NET-Server-Control-Message-Box-Confir http://www.codeproject.com/Articles/7525/Simple-MessageBox-functionality-in-ASP-NET http://www.codeproject.com/Tips/370157/A-Windows-Form-like-MessageBox-for-ASP-NET-Website http://www.how-to-asp.net/messagebox-control-aspnet/