prevent在.NET中给定的应用程序的多个实例？ [英] Prevent multiple instances of a given app in .NET?

问题描述

在.NET中，什么是从在同一时间运行的应用程序的prevent多个实例的最好方法？如果没有最好的技术，有哪些告诫与每个解决方案来考虑的？

In .NET, what's the best way to prevent multiple instances of an app from running at the same time? And if there's no "best" technique, what are some of the caveats to consider with each solution?

推荐答案

使用互斥。上述一个使用GetProcessByName的例子有很多注意事项。下面是关于这个问题的好文章：

Use Mutex. One of the examples above using GetProcessByName has many caveats. Here is a good article on the subject:

<一个href="http://odeto$c$c.com/Blogs/scott/archive/2004/08/20/401.aspx">http://odeto$c$c.com/Blogs/scott/archive/2004/08/20/401.aspx

[STAThread]
static void Main() 
{
   using(Mutex mutex = new Mutex(false, "Global\\" + appGuid))
   {
      if(!mutex.WaitOne(0, false))
      {
         MessageBox.Show("Instance already running");
         return;
      }

      Application.Run(new Form1());
   }
}

private static string appGuid = "c0a76b5a-12ab-45c5-b9d9-d693faa6e7b9";

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