How to access to winform controls from the other thread?

Question

For examle, I want to change text in the textBox from the method of the other class. How should I do it?

Answer 1

You can only access WinForm controls from the thread that created them (the same is true in WPF). But there is a mechanism inbuilt to help you: Invoke.

See this question for examples: WinForms interthread modification