Unable to bind Cascading Dropdowns - jQuery AJAX

Question

My DB consists of Regions, Divisions & States. My application (ASP.NET MVC) application uses entityframework to bind data to DropDown.

• Created Action to bind Regions by default.
• Created Action with RegionId as parameter to retrive Divisions

[HttpGet]
       public JsonResult GetDivisionsByRegions(string regionID = "")
       {
           try
           {
               List<Division> allDivisions = new List<Division>();
               int ID = 0;
               if (int.TryParse(regionID, out ID))
               {
                   using (GeoEntities data = new GeoEntities())
                   {
                       allDivisions = data.Divisions.Where(div => div.RegionID == ID).OrderBy(div => div.DivisionID).ToList();
                   }
               }
               if (Request.IsAjaxRequest())
               {
                   return new JsonResult
                   {
                       Data = allDivisions,
                       JsonRequestBehavior = JsonRequestBehavior.AllowGet
                   };
               }
               else
               {
                   return new JsonResult
                   {
                       Data = "Invalid Data",
                       JsonRequestBehavior = JsonRequestBehavior.AllowGet
                   };
               }
           }
           finally
           {
           }
       }

• jQuery AJAX call to GET data from & bind to Dropdown.

<script type="text/javascript">
    $(document).ready(function () {
        $('#RegionID').change(function () {
            var regionID = parseInt($('#RegionID').val());
            if (!isNaN(regionID)) {
                var ddDivision = $('#DivisionID');
                ddDivision.empty();
                ddDivision.append($("<option></option>").val("").html("Select Division"));
                $.ajax({
                    url: "@Url.Action("GetDivisionsByRegions","GetGeoData")",
                    type: "GET",
                    data: { regionID: regionID },
                    dataType: "json",
                    success: function (data) {
                        $.each(data, function (i, value) {
                            ddDivision.append(
                                $('<option></option>').val(value.DivisionID).html(value.DivisionName)
                                );
                        });
                    },
                    error: function () {
                        alert('Sorry!! Error');
                    }

                });

            }
        });
    });
</script>

• Able to get data from entity.

• Error when bindig to Division drop down

Please help me out..

Answer 1

Thanks for your answersir..please look at my code below:

 

//Model 

public class PayPalModel

{

[Key]

public string cmd { get; set; }

public string business { get; set; }

public string no_shipping { get; set; }

public string @return { get; set; }

public string cancel_return { get; set; }

public string notify_url { get; set; }

public string currency_code { get; set; }

public string item_name { get; set; }

public string amount { get; set; }

public string actionURL { get; set; }

public PayPalModel(bool useSandbox)

{

this.cmd = "_xclick ";

this.business =

ConfigurationManager.AppSettings

["business "];

this.cancel_return =

ConfigurationManager.AppSettings

["cancel_return "];

this.@return =

ConfigurationManager.AppSettings

["return "];

if (useSandbox)

{

this.actionURL =

ConfigurationManager.AppSettings

["test_url"];

}

else

{

this.actionURL =

ConfigurationManager.AppSettings

["Prod_url"];

}

this.notify_url =

ConfigurationManager.AppSettings

["notify_url "];

this.currency_code =

ConfigurationManager.AppSettings

["currency_code "];

}

}

 

//Controller 

 

public ActionResult ValidateCommand(string

product, string totalPrice)

{

bool useSandbox =

Convert.ToBoolean

(ConfigurationManager.AppSettings

[" IsSandbox "]);

var paypal = new PayPalModel

(useSandbox);

paypal.cmd = "_xclick";

paypal.item_name = product;

paypal.amount = totalPrice;

return View(paypal);

}

 

Where is the problem?? 

Answer 2

Long back i have written in c#

 

Before testing my code, I log in the PayPal Developer Central and then I launch the SandBox for the seller’s email

( [e-mail] ).

I would like to get some help to find out why my code is not working in the PayPal SandBox.

It returns an error message:

“We cannot process this transaction because there is a problem with the PayPal email address supplied by the seller. Please contact the seller to solve the problem.”

The strange thing is that I used the same variables and its values and the same email addresses in the PayPalTech – Testing page ( http://paypaltech.com/Stephen/test/index.htm ) and it works.

Here is the relevant code:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

// Create the PayPal redirect location for Buy Now

string redirect = "";

redirect += "https://www.sandbox.paypal.com/cgi-bin/webscr?busines=[e-mail]";

redirect += "&cmd=_xclick";

redirect += "&invoice=" + orderId;

redirect += "&item_name=" + productName;

redirect += "&item_number=" + productID;

redirect += "&amount=" + price;

redirect += "&quantity=" + quantity;

redirect += "&currency_=USD";

redirect += "&return=http://83.35.154.61/SI/PDT_CustomerReturn.aspx";

redirect += "&cancel_return=http://83.35.154.61/SI/Cancel.aspx";

redirect += "&rm=2";// means method=POST

redirect += "notify_url=http://83.35.154.61/SI/IpnHandler.aspx"; //receive IPN

redirect += "&no-shipping=1"; // not asked for shipping details

redirect += "&first_name=" + firstname;

redirect += "&last_name=" + lastname;

//redirect += "&email=" + email;

redirect += "&email=stephen@a_web_site.com";

// Redirect to the payment page

Response.Redirect(redirect);

 

hope it would resolve your problem,ensure u have properly provided amount,price string as formatted in their code