I can't send newline to TextBox

using a multiline text box i cannot seem to send the return/new line character with the \n how else can i send it a carrage return?

two ways
"\n\r"

or use Environment.NewLine (use this one)

"\n\r"
That won't work in a multiline textbox, brings up thoe weird rectangle symbols.

The Evnrionment.newline works liek a charm though.

thanks again guys

it must be \r\n