Using 2-4 threads and thread pooling, it is easy to stumble upon some resource conflicts. Remember to
whenever you access it.
Here are some tips if you've never used it:
Remember to distribute the same instance of your lock-token to all threads. The lock-token is just any object, like:
object _myLockToken = new object();
Your code will then be something like:
private void clock_Tick(object sender, EventArgs e)
txtMsg.Text = myClass.myStringBuilder.ToString();
if (myClass.myStringBuilder.Length == 50000)
catch (Exception ex)
lock Statement (C# Reference)
I'm quite confident that this will help.
(Remember the BeginInvoke-pattern when updating the GUI)