Access form controls from Class in c#

[SimhachalamNaidu]

i have a form namee Form1. and i have a class myclass.now what i need is i want to modify controls of Form1 from myclass. please notice that Controls in Form1 are runtime user controls. please help me for that. Thanx

[r035198x]

You need a handle (reference) of that form in your class.
Classes shouldn't be allowed to change whatever they want anywhere.

[SimhachalamNaidu]

just i need to access the controls on the form.so i need to first access that form.

[r035198x]

just i need to access the controls on the form.so i need to first access that form.

The controls are properties/members of that form. You can't get to them unless you can get to the form. The only things you can get without having an instance are statics but then those do not belong to an instance either ...