MultiThreading in C#

Question

Hi all I have a method that needs to execute a lot of times. I want to drop my code in there but also the method expects two paramaters for everything to work as expected. No I am faced with the following issue. I use the System.Threading.ThreadPool class to queue the executions. My current code looks like this: foreach (string f in FileList) { bool u = true; ThreadPool.QueueUserWorkItem(new WaitCallback(CreateK2_Excist) f ); I want to be able to pass in u and f but I can only get the WaitCallback to accept 1 paramater. How would it be possible to pass in two paramaters too my method?? Thanks in advance! {SpGh}

Sam Hobbs · Answer

The way I would do it is probably the way most developers would do it; I would create a class that has the two objects in it except I would give the objects the actual type that they are instead of just calling them objects. Then I would pass an instance of the class as the object for the callback. In the callback I would check to ensure that the parameter is an object of the class that I am expecting. This might seem like extra work but if you ever make a mistake then using a specific type can save a lot of time.

Space Ghost · Answer

Got it! ThreadPool.QueueUserWorkItem(new WaitCallback(Create_Excist) (object)new object[] { f  u }); ... ... ... public void Create_Excist(object obj1) { object one = ((object[])obj1)[0]; object two = ((object[])obj1)[1]; Cheers!