converting json string into json on client side?

Question

In my javascript code I am getting json string from cs file

var tmpString="<%=resultset2%>";

In cs I am concatenating strings to build json string. Here is an issue the json string is returned as a string and it has " with it.

"[{id:'1',name:'Aik'},{id:'2',name:'Aik or Aik'}]"

Because of " in beginning and end javascript code treat it as a string. Kindly guide me how I should sort out this issue.

thanks

stackoverflow.com/questions/45015/…

amit_g
– amit_g

2011-04-05 16:21:55 +00:00
Commented Apr 5, 2011 at 16:21 — amit_g
– amit_g, Commented Apr 5, 2011 at 16:21

Quentin · Accepted Answer · 2011-04-05 16:21:01Z

5

Fix the JSON, it has errors (property names must be strings (and thus quoted), and only " are acceptable for quoting strings in JSON). JSON is a subset of JavaScript, you can't use all of JS' syntax in JSON. As a rule of thumb, if you are concatenating strings to produce a data format, then you are doing it wrong. http://json.org/ lists a number of C# libraries that you can use to build JSON.
Use json2.js

answered Apr 5, 2011 at 16:21

Quentin

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10 Comments

user576510 Over a year ago

Thanks @David, is it possible doing on client side ? if I try doing it on server side it will requrie a lot of work to do in changes.

Quentin Over a year ago

If you really, really want to just hack together support for treating that string as an object instead of working with JSON … then just dump the JS object instead of making it a string: var tmpString=<%=resultset2%>;

Jamie Treworgy Over a year ago

I was about to add another answer to the effect of "why use JSON at all if you're just rendering javascript from a server page?" and I realized, he's not using JSON. He's just trying to render Javascript object syntax. There's no data transfer here, it's just server code writing javascript, so no point in using JSON and adding another layer.

Quentin Over a year ago

There is a point in using JSON — it can be cleanly generated from mature libraries and thus reduce the risk of XSS problems generated by user data.

Ruan Mendes Over a year ago

@jamietre. It is JSON. It's the easiest way for your server side to pass values to your client side JS. Doing it from the page itself (instead of an XHR) saves a trip to the server.

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Jamie Treworgy · Accepted Answer · 2011-04-05 16:36:31Z

2

Change this:

var tmpString="<%=resultset2%>";

to:

var tmpString=<%=resultset2%>;

This isn't JSON, you're just writing javascript from a server page. The problem is you are creating invalid javascript syntax, you just need to remove the quotes.

The quotes aren't from resultset2 they are from your markup.

answered Apr 5, 2011 at 16:36

Jamie Treworgy

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