Question

Possible Duplicate:
Why am I getting this error:“Cross-thread operation not valid: Control lbFolders accessed from a thread other than the thread it was created on.”?
Invoke or BeginInvoke cannot be called on a control until the window handle has been created

I have problem with threads.

I am fetching data from COM port every 600ms and when I’m in debug mode I am getting error like after few seconds but when I am in non-debug running mode I am getting error after minute or two but error persist.

The error that I am getting is occurring on some of the functions that are called on each thread.

Here is the picture of the error:

Other part of the code:

private void LoadData()
        {
            while (td.IsAlive)
            {
                eng.GetSpeedKmh();
                eng.GetEngineRpm();
                eng.GetCalculatedEngineLoadValue();
                eng.GetFuelLevelInput();
                eng.GetEngineTemp();
                eng.MAF();

                System.Threading.Thread.Sleep(600);
            }
        }

What can I do to fix this?

Answer 1

try below code

public void eng_OnGetSpeedDone(OBDIIEngineEventArgs args)
        {
            if (this.InvokeRequired)
            {
                Action action = () => eng_OnGetSpeedDone(args);
                Invoke(action);
                return;
            }
            if (!args.OBDResultNoData)
                brzina_ele.Text = arg.OBDValue.ToString();
            else
                brzina_ele.Text = "0";

        }