getting a 403 forbidden error when calling a .NET function from jQuery AJAX

Question

I have this jQuery code that runs from a form submission and loops to insert a certain number of records into an SQL table. The ajax portion of the code calls a VB function in a webmatrix page called Helpers.vbhtml

function InsertSheeter()
{
    var textDate = $('#textDate').val()
    var Workorder = $('#textWorkorder').val()
    var Material = $('#dropdownMaterial').val()
    var Shift = $('#dropdownShift').val()
    var Sheeter = $('#dropdownSheeter').val()
    var FoilNum1 = $('#textFoilNum1').val()
    var FoilNum2 = $('#textFoilNum2').val()
    var FoilNum3 = $('#textFoilNum3').val()
    var Printline = $('#dropdownPrintline').val()
    var Section = $('#dropdownSection').val()
    var Comments = $('#textComments').val()
    var Employee = $('#dropdownEmployees').val()

    var a = 0

    while (a < Section)
    {


        switch (a) 
        {
        case 0:
            blockSection = "1"
            break;
        case 1:
            blockSection = "2"
            break;
        case 2:
            blockSection = "3"
            break;
        }

    var str = {pDate: textDate, pSheeter: Sheeter, pShift: Shift, 
            pEmployee: Employee, pWorkorder: Workorder, pBlockSection: blockSection, 
                pComments: Comments, pFoilNum1: FoilNum1, pFoilNum2: FoilNum2, 
                pFoilNum3: FoilNum3, pPrintline: Printline, pMaterial: Material}
    $.ajax(
    {
        type: "POST",
        contentType: "application/json; charset=utf-8",
        url: "Helpers.vbhtml/InsertSheeter",
        data: JSON.stringify(str),    
        dataType: "json",
        success: function(data)
            {
            OpenReports(Workorder, data.d)
            },
        error: function (xhr, errorType, exception) { 
                var errorMessage = exception || xhr.statusText;
                alert(errorMessage);
                }

    });


    a++;
    }


}

This is the VB.NET function that gets called:

I created according to how I understand the documentation, a webservice using a vbhtml page in the App_Code directory. Here is a snippet of my vb code InsertSheeter as previously referenced in this post.

@Imports Microsoft.VisualBasic
@Imports System
@Imports System.Web
@Imports System.Web.Services
@Imports System.Xml.Serialization

@Functions
<System.Web.Script.Services.ScriptService()> _
<WebService(Namespace:="http://tempuri.org/")> _
<WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> 


 <WebMethod>
Public Shared Function InsertSheeter(ByVal pDate As DateTime, ByVal pSheeter As String, ByVal pShift As String,
                            ByVal pEmployee As String, ByVal pWorkorder As String,
                            ByVal pBlockSection As String, ByVal pComments As String, ByVal pFoilNum1 As String,
                            ByVal pFoilNum2 As String, ByVal pFoilNum3 As String, ByVal pPrintline As String,
                            ByVal pMaterial As String) As String

Dim db As Database
db = Database.Open("Nomex")
Dim strQuery As String

Dim pBlockNumber As String

pBlockNumber = GetBlockNumber(pBlockSection, pWorkorder, pSheeter, pMaterial)

strQuery = "INSERT INTO dbo.NomexSheeter (SheeterDate, Sheeter, Shift, Employee, WorkOrder, BlockNumber, BlockSection, " _
            & "Comments, FoilNum_1, FoilNum_2, FoilNum_3, PrintLine, Material) " _
            & "VALUES (@0, @1, @2, @3, @4, " _
            & "@5, @6, @7, @8, @9, @10, @11, @12)"

db.Execute(strQuery, pDate, pSheeter, pShift, pEmployee, pWorkorder, pBlockNumber, pBlockSection,
                     pComments, pFoilNum1, pFoilNum2, pFoilNum3, pPrintline, pMaterial)

db.Close

Return pBlockNumber 

End Function


End Functions

after calling the jQuery function InsertSheeter() i still get the 404 Forbidden error. I don't understand what I am doing wrong. Webmatrix documentation and posts online seem to support this idea.

Answer 1

Perhaps your AJAX request is going over HTTP and you have "Require SSL" set for your application?

Answer 2

Maybe I'm wrong but I think Helpers is not intended to be called by client side.

Helpers In ASP.NET Web Pages are components that are stored as .cshtml files, and are meant to promote reusability by allowing other ASP.NET Web Pages to access them using the familiar object.method([args…]) syntax in views.

Usefull link about helpers.

What you seems to want is a web service in asmx format that allow http Post request and send and receive JSON.

Link to create web services. Link to enable http Post. Link to enable JSON .