C # Passing control parameters between forms

Method 1 for passing values between forms: using system;
Using system. Windows. forms;
Namespace Test
{
Public partial class form1: Form
{
Public form1 ()
{
Initializecomponent ();
}
Private void button#click (Object sender, eventargs E)
{
Form2 F2 = new form2 ();
F2.textbox1. Text = "value ";
}
}
}
To successfully execute this code, you must set the modifier attribute of the textbox1 control in the form2 window to public.

Method 2: You do not need to set the modifier attribute of the control to public.

Form2 F2 = new form2 (); (textbox) (f2.controls. Find ("textbox1", true) [0]). Text = "value ";

Or

((TextBox)f2.Controls["textBox1"]).Text = "value";
Or see
Click Open link http://blog.csdn.net/xiongxyt2/article/details/6305507