Re: timer/threading

OK; the timer (via SyncContext) fires on the UI thread. You then start
a thread, which immediately does a BeginInvoke back to the UI
thread...

At the moment you background thread is doing nothing useful; try to
split it so that it does something like:

private void liveprices()
{ // expecting this on a non-UI thread!
//TODO: go get the data into a new DataTable, array or
whatever
BeginInvoke((MethodInvoker) delegate {
//TODO: update the grid
});
}

Now the "fetch" happends on the worker thread, and the UI update
happens on the UI thread.

However, every second seems optimistic for DataTable; I'm hoping
you're using a "get changes since <x>" mechanism in the database?

And note that if your datatable is UI bound you can only touch it from
the UI thread.

Marc
.

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