Simple, yes... but not something I'd allow into production code. See theselinks for some discussion.
Here's an alternative... first, a method to try to create a mutex unique to the application:
private Mutex GetSingleInstanceMutex()
Mutex mutex = new Mutex(false, @"Global\" + SomethingUnique, out createdNewMutex);
mutex = null;
SomethingUnique should be something unique to the application, for example, the assembly GUID.
Here's how you'd use the method:
using (Mutex mutex = GetSingleInstanceMutex())
if (mutex != null)
// This is the only running instance; go ahead and run the application.
// Another instance is running; notify user and quit.
Hi, as I was told that my code doesn’t scale well at all, I thought perhaps I’d try to get a better understanding of interfaces/abstract classes and classes and the relationship between them.
I don’t want at this stage work on a big separate project as I've already got plenty ...
I am writing a java program that needs to execute shell commands, so I wrote a function that would take the command to execute as a string (ie: "mkdir ~/Folder1") and execute that command with the shell. Here is the function:
Runtime run = Runtime.getRuntime();
Process pr = ...
Hi. I have a form with list box : lst_product, datagridview : grd_order and button: btn_addline. lst_product has a list of product ids selected from database (MS Acess 2013) , grd_order is by default empty except for 2 headers and btn_addline adds rows to grd_order.