How to know numeric of instance...

[Hoang Dung]

Hi, I write an application in C# but I don't want user run it more one instance. How do I know numeric of instance of this app when user fire it? And how to I resolve this problem? Please help me. Thanks. H.Dung

[jspano]

The standard way is to use a mutex to control access. See this article for a class that does it. http://www.codeproject.com/csharp/cssingprocess.asp[^]

[Hoang Dung]

Hi, Thanks you very much. H.Dung