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Can

Last post was 11 Mar 2008 at 17:12

csharp , xhtml Linz, Austria

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13 years ago

by mangoART

Mario Stangl

, Austria

Joined 13 years ago
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12 years ago

by joe90

J Alan

, United Kingdom

Joined 15 years ago
The Silver Spoon:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="TestForm.aspx.cs" Inherits="TestBed.WebGui.TestForm" debug="true" ContentType="text/html" ResponseEncoding="iso-8859-1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

    <head>
        <title>Shopping Cart</title>

        <script runat="server">
            private System.Data.DataTable objDT;
            private System.Data.DataRow objDR;

            private void Page_Load(object s, EventArgs e)
            {
                if (!IsPostBack)
                {
                    makeCart();
                }
            }

            void makeCart()
            {
                objDT = new System.Data.DataTable("Cart");
                objDT.Columns.Add("ID", typeof(int));

                objDT.Columns["ID"].AutoIncrement = true;
                objDT.Columns["ID"].AutoIncrementSeed = 1;

                objDT.Columns.Add("Quantity", typeof(int));
                objDT.Columns.Add("Product", typeof(string));

                objDT.Columns.Add("Cost", typeof(Decimal));
                Session["Cart"] = objDT;
            }


            void AddToCart(object s, EventArgs e)
            {
                objDT = (System.Data.DataTable) Session["Cart"];
                object Product = ddlProducts.SelectedItem.Text;
                bool blnMatch = false;

                foreach (System.Data.DataRow objDR in objDT.Rows)
                {

                    if ((objDR["Product"] == Product))
                    {
                        objDR["Quantity"] = (objDR["Quantity"] + txtQuantity.Text);

                        blnMatch = true;
                        break;
                    }
                }

                if (!blnMatch)
                {
                    objDR = objDT.NewRow();
                    objDR["Quantity"] = txtQuantity.Text;

                    objDR["Product"] = ddlProducts.SelectedItem.Text;
                    objDR["Cost"] = Decimal.Parse(ddlProducts.SelectedItem.Value);

                    objDT.Rows.Add(objDR);
                }

                Session["Cart"] = objDT;
                dg.DataSource = objDT;

                dg.DataBind();
                lblTotal.Text = ("$" + GetItemTotal());
            }


            Decimal GetItemTotal()
            {
                Decimal decRunningTotal = 0;

                for (int intCounter = 0; (intCounter<= (objDT.Rows.Count - 1)); intCounter++)
                {
                    objDR = objDT.Rows[intCounter];
                    decRunningTotal = (decRunningTotal + ((decimal)objDR["Cost"] * (int)objDR["Quantity"]));
                }

                return decRunningTotal;
            }

            void Delete_Item(object s, DataGridCommandEventArgs e)
            {
                objDT = (System.Data.DataTable)Session["Cart"];
                objDT.Rows[e.Item.ItemIndex].Delete();
                Session["Cart"] = objDT;
                dg.DataSource = objDT;
                dg.DataBind();

                lblTotal.Text = ("$" + GetItemTotal());
            }
        </script>
    </head>

    <body>
        <form id="Form1" runat="server">
        Product:<br/>
            <asp:DropDownList id="ddlProducts" runat="server">
                <asp:ListItem Value="4.99">Socks</asp:ListItem>

                <asp:ListItem Value="34.99">Pants</asp:ListItem>
                <asp:ListItem Value="14.99">Shirt</asp:ListItem>

                <asp:ListItem Value="12.99">Hat</asp:ListItem>

            </asp:DropDownList><br/>

        Quantity:<br/>
            <asp:textbox id="txtQuantity" runat="server" /><br/><br/>
            <asp:Button id="btnAdd" runat="server" Text="Add To Cart" onClick="AddToCart" /><br/><br/>

            <asp:DataGrid id="dg" runat="server" ondeletecommand="Delete_Item">
                <columns>
                    <asp:buttoncolumn buttontype="LinkButton" commandname="Delete" text="Remove Item" />
                </columns>
            </asp:DataGrid>

        <br/><br/>

        Total:
            <asp:Label id="lblTotal" runat="server" />

        </form>
    </body>

</html>

Joe

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12 years ago

by mangoART

Mario Stangl

, Austria

Joined 13 years ago
You're the best JOE!!!!, thanks a million!!!!, finally it works!!! God bless you!!!!! Is there a way I can give you credit on this site??

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12 years ago

by joe90

J Alan

, United Kingdom

Joined 15 years ago
If you can see yourself helping others out in similar circumstances in the future, then that's credit enough. Glad it helped you out.
Joe

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