使用jQuery在asp.net中访问字典

Question

Hi I declared a dictionary in .cs file of asp.net but I want to access the contents of this dictionary by using a jquery function. The jquery function takes key as input and in the body of the function it should access the dictionary in the .cs of asp.net and process it and jquery should output the value corresponding to the key. Can you suggest a way to do this.

The code which I a writing is

public string DictJson { 
   get { 
      MouseOverFieldDict mdict = new MouseOverFieldDict(); 
      JavaScriptSerializer jSer = new JavaScriptSerializer(); 
      return jSer.Serialize(mdict.FieldDict); 
   } 
} 

I added above code in .cs file as a property and I tried to access it in the script which I wrote in aspx page

var dict = $.parseJSON('<%=DictJSON %>'); 
alert(dict); 

but I'm getting error The name 'DictJSON' does not exist in the current context . The error is showing for DictJSON declared in the script part

Answer 1

Your casing is incorrect - should be DictJson , not DictJSON . Inside the code block in your page, the code is C#, so it's case-sensitive.

Additionally, since you're returning a JSON string, you really don't need to put it in quotes and then parse it - in fact, there's a good chance that won't work. You can instead do either:

var dict = <%= DictJson %>;

or you can do something a little different if you don't want to mix your server and client scripts together:

<script type="application/json" id="dict-contents">
    <%= DictJson %>
</script>

<script type="text/javascript">
    var dict = JSON.parse(jQuery("#dict-contents").html());
</script>