line break in alert popup

Question

I am trying to add a new line Javascript alert message. I tried '\n' and 'Environment.NewLine'. I am getting Unterminated string constant error. Could you please let me know what could be the problem? I appreciate any help. I also tried \r\n.

string msg = "Your session will expire in 10 minutes. \n Please save your work to avoid this.";


if (!this.ClientScript.IsStartupScriptRegistered(ID)) 
   this.ClientScript.RegisterStartupScript(GetType(), ID, String.Format("<script language=JavaScript>setTimeout(\'alert(\"{1}\");\',{0}*1000);</script>", sTime, msg));

Answer 1

I would suspect that you need to change your code to;

string msg = "Your session will expire in 10 minutes. \\n Please save your work to avoid this.";

And escape the \n otherwise your code outputted would actually include the line break rather than \n

Your output code would look like:

setTimeout('alert("Your Session....
 Please save your work to ....");', 1000);

Rather than:

setTimeout('alert("Your Session....\n Please save your work to ....");', 1000);