Question

I have a backgroundworker which calls a method in the
DoWork event.

this method accesses a dataset in the UI Thread and it also calls a another method in the UI Thread.

my problem comes in when the method requires access to datasets and methods that exists in the Ui Thread, I get a cross thread operation not valid error.

How can I access Items UI Thread?
Is it possible for me to access it using the backgroundworker or must I use another method of running my method in a background thread

Thanks

Answer 1

You just need to marshal the method call to the UI thread.
On WinForms:

void DoWork(...)
{
    YourMethod();
}

void YourMethod()
{
    if(yourControl.InvokeRequired)
        yourControl.Invoke((Action)(() => YourMethod()));
    else
    {
        //Access controls
    }
}