Threading in C#

//Add a delegate
public delegate int binaryop(int a, int b);

private int add(int a, int b)
{
Thread.Sleep(5000);
MessageBox.Show("a Done");
return a + b;
}
private void addDone(IAsyncResult rr)
{
MessageBox.Show("ADDDONE");
}

Now try
main()
{

binaryop b = new binaryop(add);
int X = b(10, 10);
IAsyncResult res = b.BeginInvoke(10, 10, null, null);

MessageBox.Show("m Done");
int Y = b.EndInvoke(res);

IAsyncResult res2 = b.BeginInvoke(10, 10, addDone, null);

MessageBox.Show("m Done");
int Z = b.EndInvoke(res2);
}

Other ways of starting threads is

Thread r = new Thread( new ParameterizedThreadStart(iteratenumbers));
r.Start(10000 );
Thread s = new Thread(new ParameterizedThreadStart(iteratenumbers));
s.Start(100000);



Where
int globalI = 0;
private void iteratenumbers(object r)
{
Monitor.Enter(this);
int x = (Int32)r;int z = 0;
for (; globalI < x; globalI++)
{
lock (this)
{
z++;
}
}
MessageBox.Show(z.ToString());
Monitor.Exit(this);
}

Thread synchronization in next topic....