在字典C＃中转换JSON

Question

I'm beginner to C # and ASP.NET , however I have some doubts.

It has a serialized dictionary que was stored in the database with :

    var json = new System.Web.Script.Serialization.JavaScriptSerializer().Serialize(filters.ToDictionary(item => item.Key.ToString(), item => item.Value.ToString()));

After serialized this dictionary it is stored in the database , because I'll use information in a view (PopUp in asp.net).

My difficulty is deserialize these values ​​that are in the database to put them back in a dictionary. I tried:

Code used to get the information in the database :

<asp:Literal ID="lblFilter" runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "FilterJson")%> ' />

The only way I get to collect the information in the code behind was:

object filter = new System.Web.Script.Serialization.JavaScriptSerializer().DeserializeObject(((Literal)e.Item.FindControl("lblFilter")).Text);

However , I can't use it with iterations and not even a Dictionary. With Dictionary used the following code:

System.Collections.Generic.Dictionary<string, string> filters = new System.Collections.Generic.Dictionary<string, string>();

That is when I need .Add a key and value in my dictionary not only chain I have a great What is the value que get no Literal :

((Literal)e.Item.FindControl("lblFilter")).Text

How can I make to converting correctly ? Thank you.

Answer 1

To deserialize a JSON-string you can easily use the following code:

Dictionary<object, object> filters = new JavaScriptSerializer().Deserialize<Dictionary<object, object>>(yourJSONString);

You have to use object instead of string , because if you have a list in your JSON-string you will get an error.

Answer 2

Solved:

I used the framework Json.NET regardless package in project.

using Newtonsoft.Json;

Getting .aspx values:

string serialize = @"" + ((Literal)e.Item.FindControl("lblFilter")).Text

To deserialize I used code bellow:

Dictionary<string, string> values = JsonConvert.DeserializeObject<Dictionary<string, string>>(serialize);

Obs.: the JsonConvert method belongs to the import package.