Access mainform while subform is updating

[C# Programming]

I setup a form (subform) inside another form (mainform)at runtime. While some methods are being executed, the data in this subform also gets updated. However, I can not do anything else in the mainform. I have also tried setting the subform up as a control but I have the same problem. Is there a way I can access the mainform while the subform is updating.

Any help will be greatly appreciated,

Thanks in advance,
Michael