Question

When I acces Form controls within BackgroundWorker DoWork event, it reads values from DatePicker but not from TextBox or ComboBox

Error:

Cross-thread operation not valid: Control 'cmbProgram' accessed from a thread other than the thread it was created on.

Code :

private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
    {
        string strDate = dtpDate.Value.ToString();

        string strProgram = cmbProgram.Text;

    }

How does it read values from DataPicker (in a different thread)?

Is there any workaround to access Form Controls from BackgroundWorker DoWork Event?

Answer 1

Use:

Dispatcher.Invoke(new Action(() =>
           {
                string strDate = dtpDate.Value.ToString();
                string strProgram = cmbProgram.Text;

           }));