Call function from another form

Question

i have a 2 winforms say form1 and form2.

I have a gridview and  some textboxes on form2. form2 contains a function to populate datagridview and fill textboxes.

 

i want to call this functin of form2 from form1.

 

i am creating an object of form2 from form1 and passing parametrs to function on form2.  

when i debug the code using breakpoints , that function on form2 is running but it is not updating datagridview and textboxes.

 

can anyone help me ?