Question

In my program I import millions of records to a SQL Server database with the help of SqlBulkCopy class. Since this is a heavy lifting it takes quite some time. While the process goes on I want to show the progress in a progressbar control. To be notified for the rows copied I’ve done this:

.......
bulkCopy.NotifyAfter = 2000;
bulkCopy.SqlRowsCopied += new SqlRowsCopiedEventHandler(bulkCopy_SqlRowsCopied);
.......

Now in the bulkCopy_SqlRowsCopied method I want to change the value of the progress bar. But I think I need to make it on a seperate thread. How can I do this?

Answer 1

You can have one extension class, like

public static class ControlExtensions
{
    public static void Invoke(this Control control, Action action)
    {
        if (control.InvokeRequired) control.Invoke(new MethodInvoker(action), null);
        else action.Invoke();
    }
 }

Now when ever and where ever you want to update status of progress bar, you can do

progressBar.Invoke(() => { progressBar.PerformStep(); };

Hope this works for you.