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  13 years ago

  by mangoART

  Mario Stangl

  , Austria

  Joined 13 years ago

   

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• • Reply

  13 years ago

  by joe90

  J Alan

  , United Kingdom

  Joined 15 years ago

   This may not be 'exact' but it is probably 99%:

  <script runat="server">

          System.Data.DataTable objDT;
          System.Data.DataRow objDR;
  
          protected void Page_Load(object sender, EventArgs e)
          {
              if (!IsPostBack)
              {
                  makeCart();
              }
          }
  
         void makeCart()
         {
              objDT = new System.Data.DataTable("Cart");
              objDT.Columns.Add("ID", GetType(Integer));
  
              objDT.Columns("ID").AutoIncrement = True;
              objDT.Columns("ID").AutoIncrementSeed = 1;
  
              objDT.Columns.Add("Quantity", GetType(Integer));
              objDT.Columns.Add("Product", GetType(String))objDT.Columns.Add("Cost", GetType(Decimal));
             
              Session["Cart"] = objDT;
         }
  
          void AddToCart(object s, EventArgs e)
          {
              objDT = (System.Data.DataTabl) Session["Cart"];
  
              string Product = ddlProducts.SelectedItem.Text;
  
              bool blnMatch = false;
  
              foreach( objDR in objDT.Rows)
              {
                  if (objDR["Product"] = Product)
                  {
                      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;
              
              for (int intCounter = 0; intCounter = objDT.Rows.Count - 1; intCounter++)
              {
                  objDR = objDT.Rows(intCounter);
                  decRunningTotal += (objDR["Cost"] * objDR["Quantity"]);
              }
              
              return decRunningTotal;
          }
  
          void DeleteItems(object s, DataGridCommandEventArgs e)
          {
              objDT = Session["Cart"];
  
              objDT.Rows(e.Item.ItemIndex).Delete();
              Session["Cart"] = objDT;
  
              dg.DataSource = objDT;
              dg.DataBind();
  
              lblTotal.Text = "$" + GetItemTotal();
          }

  </script> 

  Joe 

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