Question

I have winform application where i am trying to play multiple videos and i am creating threading for that. My code is :

public String[,] vpath = new String[3, 7]; 
public Video[,] video = new Video[3, 7];
public static Thread[,] th = new Thread[3, 7];

public void playclick(object sender, EventArgs e)
    {
        int i, j;

        for (j = 0; j <= 7 - 1; j++)
        {
            for (i = 0; i <= 3 - 1; i++)
            {
                if (btnp[i, j].Capture)
                {
                    //play();

                    th[i, j] = new Thread(new ThreadStart(play));
                    th[i, j].IsBackground = true;
                    th[i, j].Start();
                }
            }
        }

    }

 public void play()
    {

            int i, j;
            for (j = 0; j <= 7 - 1; j++)
            {
                for (i = 0; i <= 3 - 1; i++)
                {
                    if (th[i, j].ThreadState == ThreadState.Running) // Having problem here
                    {
                        if (video[i, j].State != StateFlags.Running)
                        {
                            video[i, j].Play();
                        }
                    }
                }
            }      
    }

So with out that if statement it will run all the videos on single button press. But i want to run the particular video which the thread is in ..

pls help me guys

Answer 1

ThreadState is a bitmask-type property (enum has the [Flags] property, that’s always the hint), so you don’t check it directly using ==, you only need to check the relevant bit:

if ((t.ThreadState & ThreadState.Running) == ThreadState.Running) { ...

Read here about the meanings of the ThreadState values. From reading that and possibly the whole article, or whole book (highly recommended!) you’ll also most likely notice that yours is probably not the ideal approach.
Not knowing your exact endgame though, it;s hard to suggest an exact one.