How to put a method with one parameter into the Thread C#

Question

Possible Duplicate:
C# ThreadStart with parameters

How to put a method with one parameter into the Thread C#.

Example:

Thread thread = new Thread(SoundInputThread.getSomething(hz));
                 thread.Start();
                 for (int i = 0; i < 5; i++) {
                     Console.WriteLine();
                     Thread.Sleep(1000);
                 }


     public static void getSomething(int hz) {
            hz = 100;
            Console.WriteLine();
        }

A Thread-Object has to be created ether by paasing in a ThreadStart or a ParameterizedThreadStart object. — Mithrandir, Nov 14 '12 at 16:18

score 3 · Answer 1 · answered Nov 14 '12 at 16:17

3

You can capture the value as follows:

Thread thread = new Thread(() => {
   getSomething(hz);
});
thread.Start();

answered Nov 14 '12 at 16:17

Candide

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The primary advantage of this over a parameterized thread start is that you don't need to cast (or box) the parameter, and also that you can have more than one parameter. – Servy Nov 14 '12 at 16:42

score 1 · Accepted Answer · answered Nov 14 '12 at 16:18

1

You need to use overloaded constuctor of Thread which takes ParameterizedThreadStart It will allow passing parameter to thread method. In the method you can csat object back to your type.

thread = new Thread(new ParameterizedThreadStart(getSomething));
thread.Start(2);

public static void getSomething(object obj) {
      int i = (int)obj;
}

answered Nov 14 '12 at 16:18

Adil

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then i suppose: int a = (int)obj; ? – Robert Nov 14 '12 at 16:22
Yes, I already updated that. – Adil Nov 14 '12 at 16:22
Ok so one last more... how to pass an int by the reference not value? – Robert Nov 14 '12 at 16:25
You can use type casting to object like (object) i – Adil Nov 14 '12 at 16:28
@Robert You don't, you pass a reference to an object that contains an integer, and then modify that object from another location. In any case, that's really a separate question. – Servy Nov 14 '12 at 16:43

How to put a method with one parameter into the Thread C#

2 Answers2