JSON request failing because of line breaks, how to escape them?

Question

Hi,

My JSON request seems to be failing because of line breaks (I am programatically weaving my own JSON string).

How can I escape for line breaks?

{"rc": "200", "m" : "", "o": "<div class='s1'>
            <div class='avatar'>                    
                <a href='\/asdf'>asdf<\/a><br \/>
                <strong>0<\/strong>
            <\/div>
            <div class='sl'>
                <p>
                    444444444
                <\/p>
            <\/div>
            <div class='clear'>
            <\/div>                        
        <\/div>"}

string jsonString = BuildJSON(someCollection).Replace(@"/", @"\/");

Answer 1

Before you build that string do a replace with \n.

Answer 2

I think you might be causing yourself a problem in your example... you don't need to escape the / character, just any \ characters. So \/ is actually wrong and it should just be /.

Any instances of \ should be changed to \.

Try it with this amendment.

Example of stripping out line breaks can be found here:

http://www.bennadel.com/blog/161-Ask-Ben-Javascript-Replace-And-Multiple-Lines-Line-Breaks.htm

Answer 3

You should be able to escape the line breaks by calling .Replace("\n","\n").

Answer 4

You should not need to serialize JSON on your own. Use .NET to do it for you:

JavaScriptSerializer jsonSerializer = new JavaScriptSerializer();

string JSON = jsonSerializer.Serialize(new {
    rc = 200,
    m = "",
    o = "<div>...</div>" });

The full namespace name of the serializer is: System.Web.Script.Serialization.JavaScriptSerializer.