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Hi friends

I am calling a asmx web services using JQuery with passing parameters as an javascript object that is converted to JSon.

var UpdatePDetails = new Object();
    var FName = $("#txtFirstName").val();
    var LName = $("#txtLastName").val();
    var SName = $("#txtSurName").val();
    var BGroup = $("#txtBloodGroup").val();
    var EMail = $("#txtEMail").val();
    var Mobile = $("#txtMobile").val();
    UpdatePDetails.FirstName = FName;
    UpdatePDetails.LastName = LName;
    UpdatePDetails.SurName = SName;
    UpdatePDetails.EMail = EMail;
    UpdatePDetails.BloodGroup = BGroup;
    UpdatePDetails.Mobile = Mobile;
      var LoginUser = $("#HLU").val();
 var param = '{"ThisPrimaryDetails":"' + JSON.stringify(UpdatePDetails) + '", "UserId" : ' + LoginUser + ' }';

and this is my ajax function

                        type: "POST",
                        contentType: "application/json; charset=utf-8",
                        url: "http://localhost:59415/MyProfile.aspx/UpdatePrimaryDetails",
                        data: param,
                        dataType: "json",
                        success: OnUpdateSuccess,
                        error: OnUpdateFail
                catch (err)
        alert("Error Occured in Ajax Function  " + err.Message);

and this is my web service code

con = New SqlConnection(constr)
Dim cmd As New SqlCommand()
Dim value As Integer
Query = "Update Users Set FirstName='" + ThisPrimaryDetails.FirstName + "' , LastName='" + ThisPrimaryDetails.LastName + "' , SurName='" + ThisPrimaryDetails.SurName + "' , EMail='" + ThisPrimaryDetails.EMail + "' , BloodGroup='" + ThisPrimaryDetails.BloodGroup + "' , Mobile='" + ThisPrimaryDetails.Mobile + "' where UserId='" + UserId.ToString + "'"
cmd = New SqlCommand(Query, con)
value = cmd.ExecuteNonQuery()
Catch ex As Exception
value = -1
End Try
Return value

I am getting the error as below

Error Occured in Update Fail
{"Message":"Invalid object passed in, \u0027:\u0027 or \u0027}\u0027 expected. (26): {\"ThisPrimaryDetails\":\"{\"FirstName\":\"John\",\"LastName\":\"Suvera\",\"SurName\":\"Abhramin\",\"EMail\":\"\",\"BloodGroup\":\"O +Ve\",\"Mobile\":\"845932523\"}\", \"UserId\" : 3 }","StackTrace":" at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeDictionary(Int32 depth)\r\n at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeInternal(Int32 depth)\r\n at System.Web.Script.Serialization.JavaScriptObjectDeserializer.BasicDeserialize(String input, Int32 depthLimit, JavaScriptSerializer serializer)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer serializer, String input, Type type, Int32 depthLimit)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize[T](String input)\r\n at System.Web.Script.Services.RestHandler.GetRawParamsFromPostRequest(HttpContext context, JavaScriptSerializer serializer)\r\n at System.Web.Script.Services.RestHandler.GetRawParams(WebServiceMethodData methodData, HttpContext context)\r\n at System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)","ExceptionType":"System.ArgumentException"}
Updated 19-Aug-12 18:04pm

1 solution

You're trying to build your own JSON object. I suggest you create a class that has the structure you want ( two properties, one is a subclass ) and call JSON.stringify on that instead of trying to build it your self ( although the result looks OK to me, there's clearly an issue with it )
Share this answer
Ganesh KP 29-Aug-12 2:40am    
Hi Christian Graus Could you Please give me a sample code regarding what you are saying
Christian Graus 30-Aug-12 12:03pm    
I mean, create a class that defines the structure you're creating on the fly
Ganesh KP 7-Sep-12 8:00am    
Hi Graus I have created own class and then created an object to that. still the same error persists me. I think the web service is unable to take the parameter that is sent from the JQuery. What else can we do in another way.
Christian Graus 7-Sep-12 15:53pm    
The web service does not care where the parameter came from, only that it is correctly formed. Can you call the web service from C# ? If so, look at the message being sent and compare it to the one being sent in this code, and work out where they are different.

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