使用c＃创建线程

Question

If I have a created a object like this

memberdetail md = new memberdetail(arg0, arg1, arg3)

how can I create a thread for the md object?

Thread t = new Thread((md));
t.Start();

is not working. Thx

Answer 1

You don't start a thread on an object , but rather a method :

memberdetail md = new memberdetail(arg0, arg1, arg3);
Thread t = new Thread(md.DoSomething);   
t.Start();

Answer 2

You have to pass the object's method to the Thread's constructor as below,

Thread t = new Thread(md.SomeFn);
t.Start();

http://msdn.microsoft.com/en-us/library/ms173178(v=vs.80).aspx

Answer 3

If you want to pass the object into the thread on start, do this:

public class Work
{
    public static void Main()
    {
        memberdetail md = new memberdetail(arg0, arg1, arg3)
        Thread newThread = new Thread(Work.DoWork);

        // Use the overload of the Start method that has a
        // parameter of type Object.
        newThread.Start(md);
    }

    public static void DoWork(object data)
    {
        Console.WriteLine("Static thread procedure. Data='{0}'", data);
        // You can convert it here
        memberdetail md = data as memberdetail;
        if(md != null)
        {
           // Use md
        }
    }
}

See Thread.Start Method (Object) for more details.

Answer 4

You can't create a thread for objects per se. You can pass an instance of a delegate to be invoked on the thread.

like on MSDN .

Threads do functions not, contain objects.

Answer 5

1. You do not create a Thread for an object. Threads are separate.

2. In most cases you should not be using Threads (anymore). Look at ThreadPool and Tasks (TPL library).

Answer 6

Try this if all you want to do is create multiple objects in different threads.

for(int i = 0, i < numThreads; i++)
    (new Thread( () => 
        { memberdetail md = new memberdetail(arg0, arg1, arg3) }).start()

Any other actions you want to perform you can do inside the body of the lambda eg

for(int i = 0, i < numThreads; i++)
    (new Thread( () => 
        {
            memberdetail md = new memberdetail(arg0, arg1, arg3);
            md.ActionOne();
            md.ActionTwo();
            //Some other actions...
        }).start()

Answer 7

I would recommend using ThreadPool.QueueUserWorkItem so that the application can manage the thread, and make sure memberdetail inherits from object.

http://msdn.microsoft.com/en-us/library/4yd16hza.aspx

   memberdetail md = new memberdetail(arg0, arg1, arg3)
   ThreadPool.QueueUserWorkItem(DoWork, md);

    private void DoWork(object state)
    {
       if (state is memberdetail)
       {
         var md= state as memberdetail;    
         //DO something with md
       }
    }