protected void product_grid_OnPageIndexChanging(object sender, GridViewPageEventArgs e)
{
product_grid.PageIndex = e.NewPageIndex;
TelevisionDbDataContext context = new TelevisionDbDataContext();
List <Product> queryAsList = (List <Product>)Cache["Product_Query"];
if (queryAsList == null)
{
// cache miss ($$$)
var pSource = (from Products in context.Products
select Products);
List <Product> pList = pSource.ToList();
product_grid.DataSource = pSource;
product_grid.DataBind();
Cache.Insert("Product_Query", pList, null, DateTime.UtcNow.AddMinutes(10), Cache.NoSlidingExpiration);
}
else
{
// cache hit
product_grid.DataSource = Cache["Product_Query"];
product_grid.DataBind();
}
// HERE: bar is initialized either way
}
public static bool ReSeedData(out string error)
{
// LINQ-to-SQL data context. Automatically created with .dbml
TelevisionDbDataContext context = new TelevisionDbDataContext();
try
{
// delete all existing rows (DELETE FROM Defects).
context.Products.DeleteAllOnSubmit(context.Products);
// insert each Defect from the sample data
foreach (Product d in data)
{
context.Products.InsertOnSubmit(d);
}
// commit
context.SubmitChanges();
error = "";
return(true);
}
catch (Exception e)
{
// return message from thrown exception
error = e.Message;
return(false);
}
}
protected void Button2_Click(object sender, EventArgs e)
{
//Reset All Values Inside Dictionary
Dictionary <string, int> televisions = new Dictionary <string, int>();
TelevisionDbDataContext context = new TelevisionDbDataContext();
var query = (from p in context.Products
select p.Name).ToList();
List <string> names = new List <string>();
names = query;
for (int i = 0; i < names.Count; i++)
{
televisions.Add(names[i].Trim(), 0);
}
txtQuantWant.Enabled = true;
txtQuantWant.Text = "";
lblquant.Text = string.Format("{0:0}", televisions[theProduct.Name] + 3);
lblHowMuch.Text = ("You currently have " + televisions[theProduct.Name]);
Session["cart"] = televisions;
}
protected void btn_purchase_Click(object sender, EventArgs e)
{
TelevisionDbDataContext context = new TelevisionDbDataContext();
Dictionary<string, int> televisions = (Dictionary<string, int>)Session["cart"];
using (TransactionScope cartTrans = new TransactionScope())
{
try
{
//Updating the Database
foreach (var key in televisions.Keys)
{
int value = televisions[key];
//Checking to See if Quantity in cart is greater than 0
if (value > 0)
{
var query = from p in context.Products
where p.Name == key
select p;
theProduct = query.Single();
theProduct.Quantity = theProduct.Quantity - televisions[key];
context.SubmitChanges();
}
}
var nameList = (from p in context.Products
select p.Name).ToList();
List<string> names = new List<string>();
names = nameList;
televisions = new Dictionary<string, int>();
for (int i = 0; i < names.Count; i++)
{
televisions.Add(names[i].Trim(), 0);
}
Session["cart"] = televisions;
Response.Redirect("~/ThankYou.aspx",false);
cartTrans.Complete();
}
catch (Exception E)
{
cartTrans.Dispose();
Response.Redirect("~/ErrorPage.aspx?err=" + E.Message);
}
}
}
protected void Page_Load(object sender, EventArgs e)
{
TelevisionDbDataContext context = new TelevisionDbDataContext();
List <string> names = null;
List <Product> queryAsList = (List <Product>)Cache["Product_Query"];
if (queryAsList == null)
{
// cache miss ($$$)
var pSource = (from Products in context.Products
select Products);
var query = (from p in context.Products
select p.Name).ToList();
names = query;
List <Product> pList = pSource.ToList();
product_grid.DataSource = pSource;
product_grid.DataBind();
Cache.Insert("Product_Query", pList, null, DateTime.UtcNow.AddMinutes(10), Cache.NoSlidingExpiration);
}
else
{
// cache hit
product_grid.DataSource = Cache["Product_Query"];
product_grid.DataBind();
}
/*
* if (!IsPostBack)
* {
* //Place all products in the drop down menu
* for (int i = 0; i < names.Count; i++)
* {
* ddlTvChoice.Items.Add(names[i].Trim());
* }
* }
* */
}
protected void Page_Load(object sender, EventArgs e)
{
TelevisionDbDataContext context = new TelevisionDbDataContext();
Dictionary<string, int> televisions = (Dictionary<string, int>)Session["cart"];
decimal subTotal = 0;
List<CartItem> cartList = new List<CartItem>();
foreach (var key in televisions.Keys)
{
int value = televisions[key];
//Checking to See if Quantity is greater than 0
if (value > 0)
{
var query = from p in context.Products
where p.Name == key
select p;
theProduct = query.Single();
blList.Items.Add(key + " (" + value + " @" + theProduct.Price + " ): $" + (theProduct.Price * value));
subTotal += (decimal)(theProduct.Price * value);
CartItem cartitems = new CartItem(theProduct.Name, (decimal)theProduct.Price, (decimal)(theProduct.Price * value), value);
cartList.Add(cartitems);
}
}
gv_cart.DataSource = cartList;
gv_cart.DataBind();
decimal gst = (decimal)(0.05) * subTotal;
decimal pst = (decimal)(0.1) * subTotal;
lblSubTot.Text = string.Format("{0:C}", subTotal);
lblGst.Text = string.Format("{0:C}", gst);
lblPst.Text = string.Format("{0:C}", pst);
lblTot.Text = string.Format("{0:C}", gst + pst + subTotal);
}
void Session_Start(object sender, EventArgs e)
{
//Getting all Names from database to List
TelevisionDbDataContext context = new TelevisionDbDataContext();
var query = (from p in context.Products
select p.Name).ToList();
List <string> names = new List <string>();
names = query;
Dictionary <string, int> televisions = new Dictionary <string, int>();
for (int i = 0; i < names.Count; i++)
{
televisions.Add(names[i].Trim(), 0);
}
Session["cart"] = televisions;
}
public string DecriptionUrl(string theName)
{
string description;
TelevisionDbDataContext context = new TelevisionDbDataContext();
Product pdescription = (Product)Cache["Product_Description"];
var query = from p in context.Products
where p.Name == theName
select p;
theProduct = query.Single();
var pathToFile = Server.MapPath(theProduct.Description);
description = File.ReadAllText(pathToFile);
description = description.Substring(0, 50);
description += "...";
return(description);
}
protected void Page_Load(object sender, EventArgs e)
{
//Getting all products with requested image
string choice = Request.QueryString["img"];
TelevisionDbDataContext context = new TelevisionDbDataContext();
Product currentProduct = (Product)Cache["Description_Query"];
if (currentProduct == null || currentProduct.Name != choice)
{
// cache miss ($$$)
var query = from p in context.Products
where p.Name == choice
select p;
theProduct = query.Single();
Cache.Insert("Description_Query", theProduct, null, DateTime.UtcNow.AddMinutes(1), Cache.NoSlidingExpiration);
}
else
{
// cache hit
theProduct = (Product)Cache["Description_Query"];
}
//Keeping the same Quantity Through Session
Dictionary <string, int> televisions = (Dictionary <string, int>)Session["cart"];
//Enable User to Keep Using Based On Stock
if (televisions[choice] == theProduct.Quantity)
{
txtQuantWant.Text = "Out of Stock";
txtQuantWant.Enabled = false;
}
//Setting the Basics
televisions = setBasics(televisions);
setImage();
}
