If you want to save line break in sql server, you need to transform code like as follows
When you found new line charecter like Environment.NewLine or "\n\r" then you need to replace that code. tsql code you run it from enterprize manager and see the output.
'This is line 1.' + CHAR(13)+CHAR(10) + 'This is line 2.'
c# code that you need to implement from your application
string data = "Good Morning\r\nI am fine";
string newData = data.Replace("\r\n","CHAR(13)+CHAR(10)");
and that newData will be store/read to sql server.