protected string getEventName(string eventID)
{
int eID = int.Parse(eventID);
EventClient evClient = new EventClient();
string evName = evClient.GetEventName(eID);
evClient.Close();
return evName;
}
/// <summary>
/// Loads the list of goods in a cart with a definite cart_id from an XML file into DataSet
/// </summary>
/// <param name="cart_id">the cart idetntifier</param>
/// <returns>The DataSet with the list of goods in the cart with the cart_id.</returns>
public static DataSet LoadCart(string cart_id)
{
DataSet currentCart = new DataSet();
string cartsFile = HttpContext.Current.Server.MapPath("~/App_Data/Carts.xml");
cart.Clear();
if (File.Exists(cartsFile))
{
cart.ReadXml(cartsFile);
}
else
{
Carts.CreateXml(cartsFile, "Carts");
cart.ReadXml(cartsFile);
}
// creates a copy of all carts
currentCart = cart.Copy();
string expression = null;
DataRow[] foundRows = null;
//an expression for searching for a cart with a cart_id
expression = "cart_id NOT LIKE '" + cart_id + "'";
try
{
if (currentCart.Tables.Count == 0)
{
// WriteFile("Error in Carts.LoadCart(): " + "currentCart.Tables.Count = 0");
Alert.Show("You got no item in your cart", true, "ParticipantEvents.aspx");
}
if (currentCart.Tables[0].Rows.Count == 0)
{
// WriteFile("Error in Carts.LoadCart(): " + "currentCart.Rows.Count = 0");
Alert.Show("You got no item in your cart", true, "ParticipantEvents.aspx");
}
// remove all goods from the current cart with the cart_id that does not ocincide with the specified one
foundRows = currentCart.Tables[0].Select(expression);
int i = 0;
for (i = 0; i <= foundRows.GetUpperBound(0); i++)
{
foundRows[i].Delete();
}
// getting a name of item for its Event_ID in order to display it further in GridView
DataColumn column = currentCart.Tables[0].Columns["Event_ID"];
currentCart.Tables[0].Columns.Add("Name", System.Type.GetType("System.String"));
foreach (DataRow row in currentCart.Tables[0].Rows)
{
//TODO: Get the event name via its ID
EventClient client = new EventClient();
string name = client.GetEventName(int.Parse(row["Event_ID"].ToString()));
if (!string.IsNullOrEmpty(name))
{
row["Name"] = name;
}
}
return currentCart;
}
catch (Exception ex)
{
currentCart.Clear();
//Alert.Show("Error in Carts.LoadCart(): " + ex.Message);
//WriteFile("Error in Carts.LoadCart(): " + ex.Message);
//HttpContext.Current.Response.Redirect("~/Default.aspx")
return null;
}
}