Updating the UI on different thread

this is the method that I use for ALL methods

delegate void SetValueCallback(object property, object value, Control control); private void SetValue(object property, object value, Control control) {     if (control.InvokeRequired)     {         this.Invoke(new SetValueCallback(SetText), new object[] { property, value, control });     }     else     {         property = value;     } }

You can do something quite similar to the sample I provided. It won't delay your worker thread; it will schedule execution of the function asynchronously in the main thread (the thread that the form is in). The following code will probably work, but I have nto tested it.

Add the following as a member of the from:

delegate void ControRefreshCallback();

Also add the following method to the form:

private void ControRefresh()
{
if (zedGraphControl1.InvokeRequired)
{
ControRefreshCallback d = new ControRefreshCallback(ControRefresh);
this.Invoke(d, new object[] );   // I am not sure about this syntax
}
else
{
zedGraphControl1.Refresh();
}
}

I have want to have the backroundworker thread call zedGraphControl1.Refresh(); . The control is located on the main thread. I want the main thread to continue what its doing during the zedGraphControl1.Refresh(); is ummm refreshing. I want the main thread to tell the backroundworker to execute the zedGraphControl1.Refresh(); and then immidiately go back to what it was doing. As I stated timing is critical and 20-30ms is a long time to wait in this application. I dont need to pass any information to the backroundworker thread.
The code you included is the best example Ive seen so far. The threads are in the same class, Is it more advisable to create another discrete thread or use the backroundworker dowork? The second thread will/should remain active during the time the main thread is active.
Im sorry if I confuse you, im really new to programming windows programs, Im an embedded c programmer and a lot of these things are new to me.

You did not provide some of the most important details, so if my assumptions are innacurate, I apologize.

Let's assume you need to update a textbox called textBox1 in a form. Let's also assume that your other thread is executing within the form's class, although I get the impression that is not true. Please explain how the other thread is able to access the form if the thread is not in the form's class. If you don't understand, then say so.

Add the following as a member of the from:

delegate void SetTextCallback(string text);

Also add the following method to the form:

private void SetText(string text)
{
if (textBox1.InvokeRequired)
{
SetTextCallback d = new SetTextCallback(SetText);
this.Invoke(d, new object[] { text });
}
else
{
textBox1.Text += text + "\r\n";
}
}

Then when you need to update textBox1 from the thread, call SetText with the string for textBox1.