run method of another class with parameter in separate thread

Question

using System;

public class ImageConverter
{
    public void button1_Click(Object sender, RoutedEventArgs e)
    {
       string filename=null;
       SendImageToPlayer send = new SendImageToPlayer();
       //send.ReadImageFile(filename);
       Thread t = new Thread(new send.ReadImageFile);
       uint ret=send.ErrorCode;
    }
}

public class SendImageToPlayer
{
    ...
    public void ReadImageFile(string PfileName)
    {
       //something
    }
    ...
}

The code above shown will not work. I want to run ReadImageFie in separate thread. How can I do that?

score 2 · Answer 1 · answered Mar 27 '12 at 09:03

You should start your thread after creating it: t.Start() ;

You should also consider using the Task Parallel Library instead.

Oh, oh, I just noticed you want to pass a parameter. You can set a property in your SendImageToPlayer instance prior to starting the thread, or pass an object to the ReadImagefile function. But really, use the TPL, it's better.

Philip Fourie · Accepted Answer · 2012-03-27T09:14:57.910

Introduce a property FileName on your SendImageToPlayer class and set it before you start the thread.

using System;

public class ImageConverter
{
    public void button1_Click(Object sender, RoutedEventArgs e)
    {
      string filename = "c:\myfile.bmp";
      SendImageToPlayer send = new SendImageToPlayer();
      send.Filename = filename;
      Thread t = new Thread(send.ReadImageFile);
      t.Start();
}

Consider using the BackgroundWorker thread class. It provides events when the thread completes.

You check the ErrorCode when the RunWorkerCompleted event is fired.

run method of another class with parameter in separate thread

2 Answers2