protected void btnUpdateCart_Click(object sender, System.EventArgs e)
{
// We declare the variable CartCookie to check if the HttpCookie "CartCookie" exits and to
// be able to remove a key from it.
HttpCookie CartCookie = Request.Cookies.Get("CartCookie");
// We check to see if the HttpCookie with the name of CartCookie exists so that we not
// will get any null point exeptions if the HttpCookie does not exist.
if (CartCookie != null)
{
if (CartCookie.HasKeys)
{
foreach (RepeaterItem RepeaterRow in CartRepeater.Items)
{
Literal ProductObj = (Literal)RepeaterRow.FindControl("ltProductID");
TextBox QuantityObj = (TextBox)RepeaterRow.FindControl("txtQuantity");
CartCookie.Values[ProductObj.Text] = QuantityObj.Text;
CartCookie.Expires = DateTime.Now.AddHours(3);
Response.Cookies.Add(CartCookie);
}
}
// Recalculate the shopping cart
CalculateCartSums();
// Update the small shopping cart by calling a public method in the Start class for the masterpage.
((Start1)this.Master).LoadSmallCart();
}
}
protected void CalculateOrderSums()
{
// We declare two variables that we will use for our calculations of total sums.
decimal PriceExVat = 0m;
decimal VatMoney = 0m;
// We iterate through each row in the "ProductRowRepeater and add values to our two variables
foreach (RepeaterItem RepeaterRow in ProductRowRepeater.Items)
{
Literal VatObj = (Literal)RepeaterRow.FindControl("ltVAT");
Literal RowSumObj = (Literal)RepeaterRow.FindControl("ltRowSum");
PriceExVat += Convert.ToDecimal(RowSumObj.Text);
VatMoney += Convert.ToDecimal(RowSumObj.Text) * (Convert.ToDecimal(VatObj.Text) / 100);
}
// We add the sums to labels and calculate the totalsum as price excluding VAT plus VAT in money
lblPriceTotal.Text = Convert.ToString(PriceExVat);
lblVatTotal.Text = Convert.ToString(VatMoney);
lblTotalSum.Text = Convert.ToString(PriceExVat + VatMoney);
}
protected void CalculateCartSums()
{
// We declare variables to calculate totals for the shopping cart.
decimal PriceTotal = 0m;
decimal VatTotal = 0m;
// We iterate through each row in the "CartRepeater" and add values to our three variables
foreach (RepeaterItem RepeaterRow in CartRepeater.Items)
{
Literal VatObj = (Literal)RepeaterRow.FindControl("ltVAT");
Literal PriceExVat = (Literal)RepeaterRow.FindControl("ltPrice");
TextBox QuantityObj = (TextBox)RepeaterRow.FindControl("txtQuantity");
// Additions for totals
PriceTotal += Convert.ToDecimal(PriceExVat.Text) * Convert.ToDecimal(QuantityObj.Text);
VatTotal += Convert.ToDecimal(PriceExVat.Text) * Convert.ToDecimal(QuantityObj.Text) * (Convert.ToDecimal(VatObj.Text) / 100);
}
// We set the totals to labels under our repeater control and calculate the totalsum
lblPriceTotal.Text = Convert.ToString(PriceTotal);
lblVatTotal.Text = Convert.ToString(VatTotal);
lblTotalSum.Text = Convert.ToString(PriceTotal + VatTotal);
}
protected void btnOrder_Click(object sender, System.EventArgs e)
{
// We declare the variable "Identity" that will store the OrderID of the order that is added so that we can use
// this OrdeID number when we are to insert data in the table "OrderProduct" that has a many to many relationsship
// to the Order table. Check database diagrams to se the relationships between tables.
Int64 Identity = 0;
// We insert an order in the "Orders" table that has OrderID as a identity field that increments with 1.
// We have added ; SELECT SCOPE_IDENTITY() to the SQL statement to get the OrderID of the inserted order
// and use "ExecuteScalar()" instead of "ExecuteNonQuery()" in the SQL command.
try
{
string ConnString = ConfigurationManager.ConnectionStrings["ConnectionString"].ToString();
string sql = "INSERT INTO Orders (OrderDate, CustomerID, Company, OrgNumber, Contact, Attention, "
+ "Adress, PostalCode, City, Country) VALUES (@OrderDate, @CustomerID, @Company, @OrgNumber, "
+ "@Contact, @Attention, @Adress, @PostalCode, @City, @Country); SELECT SCOPE_IDENTITY()";
// Create a SqlConnection. The using block is used to call dispose (close) automatically even if
// there are an exception.
using (SqlConnection cn = new SqlConnection(ConnString))
{
// Create a SqlCommand. The using block is used to call dispose (close) automatically even if
// there are an exception.
using (SqlCommand cmd = new SqlCommand(sql, cn))
{
// Add parameters.
cmd.Parameters.AddWithValue("@OrderDate", DateTime.Now.ToString());
cmd.Parameters.AddWithValue("@CustomerID", HiddenCustomerID.Value);
cmd.Parameters.AddWithValue("@Company", txtCompany.Text);
cmd.Parameters.AddWithValue("@OrgNumber", txtOrganisationNumber.Text);
cmd.Parameters.AddWithValue("@Contact", txtContact.Text);
cmd.Parameters.AddWithValue("@Attention", txtAttention.Text);
cmd.Parameters.AddWithValue("@Adress", txtAdress.Text);
cmd.Parameters.AddWithValue("@PostalCode", txtPostalCode.Text);
cmd.Parameters.AddWithValue("@City", txtCity.Text);
cmd.Parameters.AddWithValue("@Country", txtCountry.Text);
// Open the connection
cn.Open();
// Execute the INSERT statement and get the Identity number.
Identity = Convert.ToInt64(cmd.ExecuteScalar());
}
}
}
catch (SqlException Sqlex)
{
Response.Write(Sqlex.Message);
}
catch (Exception ex)
{
Response.Write(ex.Message);
}
// When we have inserted an order we want to insert the product rows for the order in the "OrdersProducts" table.
// We first check to see that the identity variable not has a blank value before we insert data to the
// "OrdersProducts" table.
if (Identity > 0)
{
// We iterate through each repeater row in the "CartRepeater" and insert every row in the
// "OrdersProduct" table.
foreach (RepeaterItem RepeaterRow in CartRepeater.Items)
{
Literal ProductIDObj = (Literal)RepeaterRow.FindControl("ltProductID");
Literal VATObj = (Literal)RepeaterRow.FindControl("ltVAT");
TextBox QuantityObj = (TextBox)RepeaterRow.FindControl("txtQuantity");
Literal PriceObj = (Literal)RepeaterRow.FindControl("ltPrice");
try
{
string ConnString = ConfigurationManager.ConnectionStrings["ConnectionString"].ToString();
string sql = "INSERT INTO OrdersProducts (OrderID, ProductID, SaleTaxPercent, Quantity, PriceExSaleTax) VALUES (@OrderID, @ProductID, @SaleTaxPercent, @Quantity, @PriceExSaleTax)";
// The using block is used to call dispose (close) automatically even if there are an exception.
using (SqlConnection cn = new SqlConnection(ConnString))
{
using (SqlCommand cmd = new SqlCommand(sql, cn))
{
cmd.Parameters.AddWithValue("@OrderID", Identity);
cmd.Parameters.AddWithValue("@ProductID", ProductIDObj.Text);
cmd.Parameters.AddWithValue("@SaleTaxPercent", Convert.ToDecimal(VATObj.Text) / 100);
cmd.Parameters.AddWithValue("@Quantity", Convert.ToDecimal(QuantityObj.Text));
cmd.Parameters.AddWithValue("@PriceExSaleTax", Convert.ToDecimal(PriceObj.Text));
cn.Open();
cmd.ExecuteNonQuery();
}
}
}
catch (SqlException Sqlex)
{
Response.Write(Sqlex.Message);
}
catch (Exception ex)
{
Response.Write(ex.Message);
}
}
// Delete the HttpCookie, we declare the variable CartCookie to check if the HttpCookie "CartCookie"
// exits and to be able to remove it.
HttpCookie CartCookie = Request.Cookies.Get("CartCookie");
// We check if the CartCookie exists and then sets the expiration date to current DateTime minus one hour
if (CartCookie != null)
{
CartCookie.Expires = DateTime.Now.AddHours(-1);
Response.Cookies.Add(CartCookie);
}
// Redirect the user to the order list webpage
Response.Redirect("Orders.aspx");
}
}