jQuery - Get value from c# dictionary

Question

I am new to jQuery. I have a jQuerypiece of code which assign PAN Name to label which return from c# dictionary after conversion in JSON. When I getting value in alert(Bold Line). It is showing undefined.

Below is my code.

                    success: function (data) {
                        var msgi = data.MSG;
                        var panno;
                        if (msgi != "A" && msgi != "B") {
                            alert(msgi); ////// Here undefined is showing
                            $("#Item3_PANNumber").focus();
                            $("#Item3_PANNumber").val('');
                        }                         

                    }

/////// This is last part of method.

                            if (words.Length > 0)
                            {
                                PANCard pc = new PANCard();

                                if (words[0] == "1" && words[2] == "E")
                                {
                                    pc.PANNumber = words[1];
                                    pc.LastName = words[3];
                                    pc.FirstName = words[4];
                                    pc.MiddleName = words[5];
                                    pc.Title = words[6];
                                    pc.LastUpdated = words[7]; ////DateTime.ParseExact(words[7], @"d/M/yyyy", culture);

                                    var panno = pc.Title + " " + pc.FirstName + " " + pc.MiddleName + " " + pc.LastName;
                                    Returndict.Add("MSG", "B");
                                    return Json(panno, JsonRequestBehavior.AllowGet);
                                }
                            }

Your help may appreciated.

Thanks Nandkumar S.

Could you please make a reduced code example? (See: sscce.org) I'm fairly sure most of the code you posted is not really relevant to the problem. Also consider stepping into both the C# code and the JS code in a debugger to see what value you're returning to the webpage, and what's happening at the line of code where you get the error. — millimoose
– millimoose, Commented Jun 14, 2017 at 9:15
Dear millimoose, Thianks for your reply. I have shorten the code. — satputenandkumar
– satputenandkumar, Commented Jun 14, 2017 at 9:21
You're never actually returning ReturnDict from your C# code, or pc, only the panno string. Unless it's put into the JSON response outside the code shown. — millimoose
– millimoose, Commented Jun 14, 2017 at 9:23

Govind Samrow · Accepted Answer · 2017-06-14 11:35:10Z

1

Use a class for response:

1. Create a response class

public class JsonReaponse
{
    public bool Success { get; set; }
    public string Message { get; set; } 
    public object Data { get; set; } = new List<string>();
}

2. Use a response class with object

JsonReaponse reaponse = new JsonReaponse();
if (words.Length > 0)
{
    PANCard pc = new PANCard();
    if (words[0] == "1" && words[2] == "E")
    {
        pc.PANNumber = words[1];
        pc.LastName = words[3];
        pc.FirstName = words[4];
        pc.MiddleName = words[5];
        pc.Title = words[6];
        pc.LastUpdated = words[7]; ////DateTime.ParseExact(words[7], @"d/M/yyyy", culture);

        var panno = pc.Title + " " + pc.FirstName + " " + pc.MiddleName + " " + pc.LastName;
        reaponse.Message = "Your Message";
        reaponse.Data = panno;
        return Json(reaponse, JsonRequestBehavior.AllowGet);
    }
}

            
3. In jQuery

success: function (res) {
    var msgi = res.Message;
    var panno = res.Data;
    if (msgi != "A" && msgi != "B") {
        alert(msgi); ////// Here undefined is showing
        $("#Item3_PANNumber").focus();
        $("#Item3_PANNumber").val('');
    }                         
}

edited Jun 14, 2017 at 11:35

answered Jun 14, 2017 at 9:53

Govind Samrow

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1 Comment

satputenandkumar Over a year ago

Thanks Govind, This helped me a lot... :)

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