muliple forms and objects

Question

Hello I have a solution with multiple forms under the same namespace. I want to be able to read the contents of a listbox on one form into a listbox on a second form. I can't seem to get them to work correctly. If I set one of the listbox to be public static it works but I then can't open the form in the form designer - it tells me that the listbox name is undefined. Can anybody help me with this problem? Thanks

Mike Gold · Answer

You should pass one form to another in the constructor and assign a reference to it. Then call methods on the other form through it's reference. e.g. Form1 _form1 = null; Form2 (Form1 form) { _form1 = form; } void DoMyListBoxChangeToForm1() { _form1.DoListBoxChange(); }