jQuery, JSON objects and .NET WebServices

Question

I have a question about creating JSON from JQuery, sending the same by Ajax to a webservice in .NET, and how to deserialize in .NET and save to the database.

Maybe someone can give me a hand to see where I'm mistaken!

jQuery and JSON:

var myObject = {};

//** BusinessPartner **
//function BusinessPartner(prefix) {
//    this.bpCodigo = $(prefix + " option:selected").val();
//    this.bpNombre = $(prefix + "-infonombre").text();
//
//** Locations **
//function Locations(prefix) {
//    this.locCode = $(prefix + " option:selected").val();
//    this.locName = $(prefix + "-name").text();

var oNewObject = new BusinessPartner("#bp-01");
var oNewObject2 = new BusinessPartner("#bp-02");

var myLocation = [];
var oOrigin = new Locations("#receipt");
myLocation.push(oOrigin);
var oDestination = new Locations("#portloading");
myLocation.push(oOrigin);

myObject["Agent1"] = oNewObject;
myObject["Agent2"] = oNewObject;
myObject["Locations"] = myLocation;

$.ajax({
    type: "POST",
    url: "Services/ActionsDb.asmx/saveData",
    contentType: "application/json; charset=utf-8",
    data: JSON.stringify(myObject),
    datatype: "json",
    success: function (response) {
        // After correct save send OK message.
    },
    error: function (xhr, status) {
        alert("An error occurred: " + status);
    }
});

The class in C# .NET

As I understand it, that should have exactly the same format as JSON received by the webservice.

public class Agent
{
    public string bpCodigo { get; set; }
    public string bpNombre { get; set; }
}
public class Location 
{
    public string locCode { get; set; }
    public string locName { get; set; }
}
public class oGet
{
    public Agent oCliente { get; set; }
    public Agent oCliente2 { get; set; }
    public List<Location> oLocations { get; set; }
}

Webservice

Good, now the WebService ActionsDb.asmx / savedata that will be asked to save the data in the DB.

    [WebMethod(EnableSession = true)]
    [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
    public string saveData(oGet myObject)
    {
        try
        {
            string sClienteName = myObject.oCliente.bpNombre.ToString();
            return sClienteName.ToString();

        }
        catch (System.Exception ex)
        {
            return ex.Message.ToString();
        }
    }

Result

The error I get follows:

POST http://localhost:8869/Services/WebtoolActionsDb.asmx/saveBLData 500 (Internal Server Error)    
{"Message":"Service call not valid. Parameter missing: \u0027myObject\u0027.","StackTrace":" 
en System.Web.Script.Services.WebServiceMethodData.CallMethod(Object target, IDictionary`2 parameters) 
en System.Web.Script.Services.WebServiceMethodData.CallMethodFromRawParams(Object target, IDictionary`2 parameters) 
en System.Web.Script.Services.RestHandler.InvokeMethod(HttpContext context, WebServiceMethodData methodData, IDictionary`2 rawParams)
en System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)","ExceptionType":"System.InvalidOperationException"}

Could you translate that error message to english please. Also in future please only use the english language on our site. Thanks. — Kev
– Kev, Commented Mar 9, 2012 at 23:27

Cœur · Accepted Answer · 2018-03-08 18:21:19Z

1

There are two problems with your JavaScript. The reason you're getting a 500 error is because the JSON you're sending needs to have a "myObject" property to correspond with the parameter to saveData. You also need to change "Agent1" to "oCliente", "Agent2" to "oCliente2", and "Locations" to "oLocations" in order to match the properties in oGet.

myObject.oCliente = oNewObject;
myObject.oCliente2 = oNewObject2;
myObject.oLocations = myLocation;

$.ajax({
    // ...
    data: JSON.stringify({ myObject: myObject }),
    // ...
});

edited Mar 8, 2018 at 18:21

Cœur

39k25 gold badges207 silver badges282 bronze badges

answered Mar 9, 2012 at 22:18

Matthew Crumley

103k24 gold badges105 silver badges131 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

jQuery, JSON objects and .NET WebServices

jQuery and JSON:

The class in C# .NET

Webservice

Result

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

jQuery and JSON:

The class in C# .NET

Webservice

Result

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related