Btukfyl

There is a huge data stored in grid that comes from a sql query joined more than ona table. Data type is Json. I filtered data and then want to sent filtered data to controller. But how it can be?
Here is test json data in javascript block:

var jsonData = {

    "FirstName": "John",

    "LastName": "Doe",

    "DoB": "01/01/1970" };

And this is my javascript function:

function submitForm() {

    var user = jsonData;



    jQuery.ajax({

        type: "POST",

        url: "@Url.Action("GetJsonData", "Account")",

        dataType: "json",

        contentType: "application/json; charset=utf-8",

        data: JSON.stringify(user),

        success: function (data) { alert(data); },

        failure: function (errMsg) {

            alert(errMsg);

        }

    });

}

How to get the Json data in controller? Here is my [HttpPost] method:

    [HttpPost]

    public IActionResult GetJsonData(String user)

    {

        //...

        return null;

    }

user gets null.. Should i change type "String" in method or something else?

Since user is a string, you could try to create an object with a property user:

jQuery.ajax({

    type: "POST",

    url: "@Url.Action("GetJsonData", "Account")",

    dataType: "json",

    contentType: "application/json; charset=utf-8",

    data: { 

        user: JSON.stringify(user) 

    },

    success: function (data) { alert(data); },

    failure: function (errMsg) {

        alert(errMsg);

    }

});

Or using FormData:

var formData = new FormData();

formData.append('user', JSON.stringify(user));



jQuery.ajax({

    type: "POST",

    url: "@Url.Action("GetJsonData", "Account")",

    contentType: false,

    processData: false,

    data: formData,

    success: function (data) { alert(data); },

    failure: function (errMsg) {

        alert(errMsg);

    }

});