protected void Page_Load(object sender, EventArgs e)
{
string categoryId = Request.QueryString["categoryId"];
if (!string.IsNullOrEmpty(categoryId))
{
// process Home Page link
HtmlAnchor lnkHome = new HtmlAnchor();
lnkHome.InnerText = "Home";
lnkHome.HRef = "~/Default.aspx";
plhControl.Controls.Add(lnkHome);
plhControl.Controls.Add(GetDivider());
// Process Product page link
HtmlAnchor lnkProducts = new HtmlAnchor();
lnkProducts.InnerText = WebUtility.GetCategoryName(categoryId);
lnkProducts.HRef = string.Format(PRODUCTS_URL, categoryId);
plhControl.Controls.Add(lnkProducts);
string productId = Request.QueryString["productId"];
if (!string.IsNullOrEmpty(productId))
{
// Process Item page link
plhControl.Controls.Add(GetDivider());
HtmlAnchor lnkItemDetails = new HtmlAnchor();
lnkItemDetails.InnerText = WebUtility.GetProductName(productId);
lnkItemDetails.HRef = string.Format(ITEMS_URL, categoryId, productId);
plhControl.Controls.Add(lnkItemDetails);
}
}
// Add cache dependency
this.CachePolicy.Dependency = DependencyFacade.GetItemDependency();
}
/// <summary>
/// This method acts as a proxy between the web and business components to check whether the
/// underlying item has already been cached.
/// </summary>
/// <param name="itemId">Item Id</param>
/// <returns>ItemInfo from Cache or Business component</returns>
public static ItemInfo GetItem(string itemId)
{
Item item = new Item();
if (!enableCaching)
{
return(item.GetItem(itemId));
}
string key = "item_" + itemId;
ItemInfo data = (ItemInfo)HttpRuntime.Cache[key];
// Check if the data exists in the data cache
if (data == null)
{
// If the data is not in the cache then fetch the data from the business logic tier
data = item.GetItem(itemId);
// Create a AggregateCacheDependency object from the factory
AggregateCacheDependency cd = DependencyFacade.GetItemDependency();
// Store the output in the data cache, and Add the necessary AggregateCacheDependency object
HttpRuntime.Cache.Add(key, data, cd, DateTime.Now.AddHours(itemTimeout), Cache.NoSlidingExpiration, CacheItemPriority.High, null);
}
return(data);
}
/// <summary>
/// Add cache dependency
/// </summary>
protected void Page_Load(object sender, EventArgs e)
{
this.CachePolicy.Dependency = DependencyFacade.GetItemDependency();
}