Bool success : The Official Microsoft ASP.NET Forums

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Yanayaya

Member

35 Points

Bool success

Oct 26, 2011 01:57 PM|LINK

I have a very simple shopping cart app that is supposed to execute a class called OrderDB in which the gathered data is submitted to my sql database however everytime I build my application I get an error saying that orderDB cannot be found in the current context.

The user is required to complete a wizard and onces that is done they simply click on finish and then this should happen.

protected void Wizard1_FinishButtonClick(object sender, WizardNavigationEventArgs e)
        {
            bool success = OrderDB.WriteOrder(order);
            Session["cart"] = null;
            Session["order"] = null;
            if (success)
                Response.Redirect("Completed.aspx");
            else
                Response.Redirect("Completed.aspx?Error=1");
        }

Intellisense is underlining OrderDB with the message "The Name 'orderDB' does not exist in the current context." Im a touch confused because OrderDB is a class in my App_Code Folder.

Where am I going wrong with this? Any help is greatly appreciated as this is the only element holding me back on this project.

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Lateef045

Star

7813 Points

1541 Posts

Re: Bool success

Oct 26, 2011 02:03 PM|LINK

Make sure you specify the correct full name (with namespaces as well) for the class.

I am sure you are missing on a very small thing.

Mark the post as Answer if it helped you so that others dont waste time looking for solution

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Yanayaya

Member

35 Points

200 Posts

Re: Bool success

Oct 26, 2011 02:13 PM|LINK

Hi Lateef045, Could you please give me an example of how that would look?

Many thanks.

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Lateef045

Star

7813 Points

1541 Posts

Re: Bool success

Oct 26, 2011 02:15 PM|LINK

Open your class in the App_Code folder and find out the namespace name.

If the namespace name is NameOfNameSpace then you can give this

bool success = NameOfNameSpace.OrderDB.WriteOrder(order);

Mark the post as Answer if it helped you so that others dont waste time looking for solution

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Yanayaya

Member

35 Points

200 Posts

Re: Bool success

Oct 26, 2011 02:20 PM|LINK

As I thought. The name space is:

Portal.App_Code

So I put it in as

bool success = Portal.App_Code.OrderDB.WriteOrder(order);

But It has started throwing this error message me now. "The type or namespace name 'OrderDB' does not exist in the namepsace 'Portal.App_Code2. (Are you missing and assembly reference)?" Hmmm, I dont think I am missing any references and if I was I wouldnt know what it would be in this instace.

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bob.vogt

Member

119 Points

53 Posts

Re: Bool success

Oct 26, 2011 02:23 PM|LINK

Be sure that the "OrderDB" class is in the correct Case i.e. It's not actually "OrderDb"

Be sure that "OrderDB" is of the correct type "Public"

Be sure that the Class in you AppCode Folder and the code behind class are under the same namespace.

If there is not namespace container in your class or codebehind class you will need to add one to both named the same.

namespace WebSite
{
    public partial class SpiderApplication : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
        
        }
    }
}

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Yanayaya

Member

35 Points

200 Posts

Re: Bool success

Oct 26, 2011 02:32 PM|LINK

Thank you for your reply. I have checked the case of the names and they all match, I did noticed the OrderDB's name space was Portal.App_Code and the codebehind for the page I want to use it on was using namespace Purchasing. So I changed OrderDB to use the namespace Purchasing however this has not helped. I have posted my code for both items and the directories they are in so perhaps you can pinpoint much better than I can what is wrong.

/Purchasing/Checkout.aspx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web.Security;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

namespace Portal.Purchasing
{
    public partial class Checkout : System.Web.UI.Page
    {
        private Order order;
        private Customer cust;
        private ShoppingCart cart;
        protected void Page_Load(object sender, EventArgs e)
        {
            cart = (ShoppingCart)Session["cart"];

            if (Session["order"] == null)
            {
                order = new Order(DateTime.Now,
                    null, (ShoppingCart)Session["cart"]);
                Session["order"] = order;
            }
            else
            {
                order = (Order)Session["order"];
                cart = order.Cart;
            }

            cust = new Customer(txtLastName.Text, txtFirstName.Text, txtEmail.Text);
            order.Cust = cust;

            lblSubtotal.Text = order.SubTotal.ToString("c");
            lblShipping.Text = order.Shipping.ToString("c");
            lblTotal.Text = order.Total.ToString("c"); cart = (ShoppingCart)Session["cart"];

            if (Session["order"] == null)
            {
                order = new Order(DateTime.Now,
                    null, (ShoppingCart)Session["cart"]);
                Session["order"] = order;
            }
            else
            {
                order = (Order)Session["order"];
                cart = order.Cart;
            }

            cust = new Customer(txtLastName.Text, txtFirstName.Text, txtEmail.Text);
            order.Cust = cust;

            lblSubtotal.Text = order.SubTotal.ToString("c");
            lblShipping.Text = order.Shipping.ToString("c");
            lblTotal.Text = order.Total.ToString("c");
        }
        protected void Wizard1_FinishButtonClick(object sender, WizardNavigationEventArgs e)
        {

            bool success = Portal.Purchasing.OrderDB.WriteOrder(order);
            Session["cart"] = null;
            Session["order"] = null;
            if (success)
                Response.Redirect("Completed.aspx");
            else
                Response.Redirect("Completed.aspx?Error=1");
        }
    }
}

/App_Code/OrderDB.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.SqlClient;

namespace Portal.Purchasing
{
    public class OrderDB
    {
        static SqTransaction tran;
        static SqlConnection con;
        public static bool WriteOrder(Order o)
        {
            string cs = WebConfigurationManager
                .ConnectionStrings["MuirHubProductsConnection"]
                .ConnectionString;
            con = new SqlConnection(cs);
            con.Open();
            tran = con.BeginTransaction();
            try
            {
                InsertCustomer(o.Cust);
                int oNum = InsertOrder(o);
                foreach (CartItem item in o.Cart.GetItems())
                    InsertItem(item, oNum);
                tran.Commit();
                con.Close();
                return true;
            }
            catch (Exception ex)
            {
                tran.RollBack();
                return false;
            }
        }

        private static void InsertCustomer(Customer cust)
        {
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = con;
            cmd.Transaction = tran;
            try
            {
                cmd.CommandText = "INSERT INTO Staff "
                    + "(lastname, firstname, email) "
                    + "VALUES (@LastName, @FirstName, @Email)";
                cmd.Parameters.AddWithValue(
                    "@LastName", cust.LastName);
                cmd.Parameters.AddWithValue(
                    "@FirstName", cust.FirstName);
                cmd.Parameters.AddWithValue(
                    "@Email", cust.Email);
                cmd.ExecuteNonQuery();
            }
            catch (SqlException ex)
            {
                if (ex.Number == 2627) //DuplicateKey
                {
                    cmd.CommandText = "UPDATE Staff "
                        + "SET lastname = @LastName, "
                        + "firstname = @FirstName "
                        + "WHERE email = @Email ";
                    cmd.ExecuteNonQuery();
                }
                else
                    throw ex;
            }

        }
        private static int InsertOrder(Order o)
        {
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = con;
            cmd.Transaction = tran;
            cmd.CommandText = "INSERT INTO Orders "
                + "(orderdate, custemail, "
                + "subtotal, shipping) "
                + "VALUE (@OrderDate, @Custemail, "
                + "@subtotal, @shipping)";
            cmd.Parameters.AddWithValue(
                "@OrderDate", DateTime.Now);
            cmd.Parameters.AddWithValue(
                "@Custemail", o.Cust.Email);
            cmd.Parameters.AddWithValue(
                "@subtotal", o.SubTotal);
            cmd.Parameters.AddWithValue(
                "@shipping", o.Shipping);
            cmd.ExecuteNonQuery();
            cmd.CommandText = "SELECT @@IDENTITY";
            return Convert.ToInt32(cmd.ExecuteScalar());
        }
        private static void InsertItem(CartItem item,
            int oNum)
        {
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = con;
            cmd.Transaction = tran;
            cmd.CommandText = "INSERT INTO OrderItems "
                + "(ordernum, productid, "
                + "name, price, quantity_ "
                + "VALUES (@OrderNum,, @ProductID, "
                + "@Name, @Price, @Quantity)";
            cmd.Parameters.AddWithValue(
                "@OrderNum", oNum);
            cmd.Parameters.AddWithValue(
                "@ProductID", item.ID);
            cmd.Parameters.AddWithValue(
                "@Name", item.Name);
            cmd.Parameters.AddWithValue(
                "@Price", item.Price);
            cmd.Parameters.AddWithValue(
                "@Quantity", item.Quantity);
            cmd.ExecuteNonQuery();
        }
    }
}

Edited by Yanayaya on Oct 26, 2011 02:32 PM

Reply

bob.vogt

Member

119 Points

53 Posts

Re: Bool success

Oct 26, 2011 02:44 PM|LINK

Try changing both namespaces to just "Purchasing"

If both classes are under the same namespace in the same project you should not have to include the namespace in the method call.

Edited by bob.vogt on Oct 26, 2011 02:47 PM

Reply

Yanayaya

Member

35 Points

200 Posts

Re: Bool success

Oct 27, 2011 07:41 AM|LINK

Hi Bob,

I tried changing the namespace to just "Purchasing" however that breaks a lot more code as it underlines almost every element saying it doesnt exist in the current context which I could correct with find control I guess but none the less for the purposes of testing I let the project build but OrderDB is still showing the same error. It seems that chaning the namespace didnt help.

Reply

Mastan Oli

Contributor

5100 Points

999 Posts

Re: Bool success

Oct 27, 2011 09:48 AM|LINK

namespace changes, doesnt make much difference. try like

what you are inheriting in the checkout.aspx @ page tag? like

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Checkout.aspx.cs" Inherits="Checkout" %>

or

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Checkout.aspx.cs" Inherits="Portal.Purchasing.Checkout" %>

It should be Inherits="Portal.Purchasing.Checkout"

Mãsthän Oli
playingOOPS | மெய்ப்பொருள் காண்பதறிவு
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Yanayaya

Bool success

Lateef045

Re: Bool success

Yanayaya

Re: Bool success

Lateef045

Re: Bool success

Yanayaya

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bob.vogt

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Yanayaya

Re: Bool success

bob.vogt

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Yanayaya

Re: Bool success

Mastan Oli

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