Responsive GUI using Multi-threading in C# Winforms

Question

I have a child form in my application. This form has got about more than 50 comboboxes and everyone is getting data from database. All combobexs are loaded in the load event

Answer 1

Take a look at the BackgroundWorker class. This can do exactly what you want. You can also include something like a progress bar to show users the data is still being loaded before they go ahead and do stuff in your child form.