Two questions about using a TextBox control in C #

Controls | issues

1. How do I implement a newline when writing text in a multiline textbox?
Because a carriage return takes two characters on a Windows system. So the method is to use the \ r \ n tag, such as
　
Label= "calculation" + ": ..... Sum\r\n ";
Textbox.appendtext (Label);
　
Another option is to use the environment.newline approach, which is compatible with Windows and Linux systems.

2. How do I use scroll bars in multiple-line textbox to automatically scroll to the last line after adding text?
The method is to automatically scroll to the position of the caret by using the Scrolltocaret method, such as:
　　
Textbox.appendtext (Label);
Textbox.scrolltocaret ();