Escaping a double-quote in inline c# script within javascript

Question

I need to escape a double quote in inline c# within javascript. Code is below:

if (\"<%= TempData[\"Message\"]%>\" == \"\") {
    // code
};
         


        

Answer 1

I have addressed this by writing a HtmlHelper that encodes the strings to a format acceptable in Javascript:

public static string JSEncode(this HtmlHelper htmlHelper, string source)
{
    return (source ?? "").Replace(@"'", @"\'").Replace(@"""", @"\""").Replace(@"&", @"\&").Replace(((char)10).ToString(), "
");
}

Then, in your view:

if ('<%= Html.JSEncode( TempData["Message"] ) %>' == "") {
    // code
};