How to call the text information of textBox1 in form1 in form2?

tcil9120

If the question, how to call the text information of textBox1 in form1 in form2?
still have a question:
a = "select count (cno) from score where cno = '" + comboBox1.Text + "'";
How to get the result of this query in the textBox control
consult

acdsee

There are several ways to use public variables, constructors, and delegates.

tcil9120

Can you be more specific, younger beginner c #
Want to log in, different user names log in different forms, how to achieve it?