accessing controls on parentform from childform

Question

I want to change text in textbox on parentform from childform. I set textbox

modifiers= public i have extra written a function in parentform

publ         


        

Answer 1

I think the problem is that ParentForm is of type Form which does not have a member txtbox. You need to cast ParentForm to your form (suppose it is Form1), like:

((Form1)this.ParentForm).txtbox