How to extract JSON data received in controller in a String variable

Question

Could you please let me know how to extract JSON data received in a string variable in controller. Please see the attachment.Thanks.

 $("#btn1").on("click", function () {
    var i = new Array();
    var j = 0;
    $("#sl1").multiselect("getChecked").map(function () {
        alert(this.value);
        i.push(this.value);
        //i[j] = this.value;                     
        //j++;

    }).get();
    var postData = { values: i };
    jQuery.ajaxSettings.traditional = true;
    $.post('/TodoList/searchdata', postData, function (data) {

        alert(data.Result);
    });
    //$.ajax({
    //    type: "POST",
    //    url: "/TodoList/searchdata",
    //    data: postData,
    //    success: function (data) {
    //        alert(data.Result);
    //    },
    //    dataType: "json",
    //    traditional: true
    //});

});

Controller code:-

public void searchdata(String[] values)
    {
    //{
    //    JavaScriptSerializer js = new JavaScriptSerializer();
    //   List<String[][]> data=js.Deserialize<List<String[][]>>(i);
        Console.WriteLine(values);

    }

You need to show your code (including the ajax). And you should be binding it to a model (not a `string`) — , Jan 16 '16 at 04:57
$("#btn1").on("click", function () { var i = new Array(); var j = 0; $("#sl1").multiselect("getChecked").map(function () { alert(this.value); i.push(this.value); //i[j] = this.value; //j++; }).get(); var postData = { values: i }; jQuery.ajaxSettings.traditional = true; $.post('/TodoList/searchdata', { i: postData }, function (data) { alert(data.Result); }); — Baji, Jan 16 '16 at 04:59
Edit your question, not in comments (impossible to read when you dont even format it). And include the controller signature (and delete the image) — , Jan 16 '16 at 05:00
It appears your passing an array of strings so it should be `$.post('/TodoList/searchdata', postData, function (data) {` and the parameter should be `string[] values` — , Jan 16 '16 at 05:03
Just test the code from my previous comment and it works for me. Did you change the `$.post()` code as per my last comment as well? - the parameter is `values` is correctly bound with the array. — , Jan 16 '16 at 05:22
another question asked today: http://stackoverflow.com/questions/34823400/parsing-complicated-json-array-in-c-sharp/34823448#34823448 seems everybody is into parsing today :) — naveen, Jan 16 '16 at 05:24

score 0 · Answer 1 · answered Jan 16 '16 at 05:04

You can use Newtonsoft Json library https://www.nuget.org/packages/Newtonsoft.Json/

So As mentioned in the below link use it like below

string json = @"{ 'Email': 'james@example.com', 'Active': true, 'CreatedDate': '2013-01-20T00:00:00Z', 'Roles': [ 'User', 'Admin' ] }";

Account account = JsonConvert.DeserializeObject(json);

if you doesn't have model , just use like below

var model = JsonConvert.DeserializeObject(json);

the check the below link

http://www.newtonsoft.com/json/help/html/deserializeobject.htm

score 0 · Answer 2 · answered Jan 16 '16 at 05:22

0

Try this

JavaScriptSerializer js = new JavaScriptSerializer();
var data=js.Deserialize<Dictionary<string, List<string>>>(i);

answered Jan 16 '16 at 05:22

naveen

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score 0 · Answer 3 · answered Jan 16 '16 at 10:22

Use This Class :

public class JsonAttributeClass<T> where T:class ,new()
{
   public static string EntityToJsonConvertor(T entity)
   {
       string json = JsonConvert.SerializeObject(entity);
       return json;

   }

   public static T JsonToEntityConvertor(string json)
   {
       var entity = JsonConvert.DeserializeObject<T>(json);
       return entity;
   }
}

How to extract JSON data received in controller in a String variable

Controller code:-

3 Answers3