How to pass textbox data between two forms?

Question

How to send textbox value to textbox between two forms without Show()/ShowDialog() by button? I want to textBox will get value without open form.

Answer 1

To access the textbox data you need to use: textBox1.Text

a form is an object so you can define a method that updates the text box value (you can expose the textbox itself with a public accessor)