HOW TO Use DATA OF From1 at Form2.

this error came..

Error3'ISTVI.Form2.comboBox1' is inaccessible due to its protection level

But All my classes are public so

this must work

Messagebox(Form2.combobox1.text.tostring());

this same thing works in VS2003 but not in Vs2005

your classes are public but the controls are not.
set the combobox1 "Modifier" Property to "Public" in Form2

your classes are public but the controls are not.
set the combobox1 "Modifier" Property to "Public" in Form2