[C#] Use a listBox from a Class.

[HateMe]

set the listbox as public , protected Internal or Internal

 

then u can call the listbox from a other class like this:

 

for example

 

public static void test()
{
string myitem = "this is a test";
Form1 a = new Form1();
a.listBox_online_list.Items.Add(myitem);
}