WinForms app seems “Not Responding” while fetching data from database?

Question

I work on WinForms app (VB.NET) which handles CRUD operations. When it loads the data, it seems state like \"Not Responding\" and when loading finished, every thing will be norm

Answer 1

All windows apps are such that if you execute any lenghty operation from your events you'll get 'not responding' for some period of time, because program isn't responding to the rest of the system. You have several options here:

• Application.DoEvents, if you have a loop with many discrete fast operations, and DoEvents after each operation
• push the task into background, via Threads or BackgroundWorker.

If you will use second options, make sure that you don't update anything on UI directly, because it will break, use Invoke() instead.