public ActionResult GetTextCache() { DatabaseWorker dw = new DatabaseWorker(); DatabaseWorker.connectDB(); ViewBag.Tables = new ArrayList(); ViewBag.Images = new ArrayList(); String[] tableNames = { "Technology", "Music", "Nature", "Health", "Sports", "Business" }; for (int j = 0; j < tableNames.Length; j++) { AsyncWorker aw = new AsyncWorker(); DataTable table; object t = HttpRuntime.Cache.Get(tableNames[j]); if (t == null) { table = aw.LoadDBTextAsync("select DocumentTitle as Title, Username, FirstName, LastName from Articles, Groups, SiteUsers " + "where Articles.GroupID=Groups.GroupID and SiteUsers.UserID=Articles.UserID and GroupName = '"+tableNames[j]+"'" + " order by FirstName, LastName ASC"); table.TableName = tableNames[j] + " Articles:"; HttpRuntime.Cache.Insert(tableNames[j], table, null, System.Web.Caching.Cache.NoAbsoluteExpiration, new TimeSpan(0, 1, 0)); } else { table = (DataTable)t; } ViewBag.Tables.Add(table); } DatabaseWorker.disconnectDB(); ViewBag.Title = "Caching Test Loading Text From Database"; return View("RegularQueries"); }
/// <summary> /// Loads images from database synchronously. /// </summary> /// <returns>View of textual tables</returns> public ActionResult GetTextSynchronous() { DatabaseWorker dw = new DatabaseWorker(); DatabaseWorker.connectDB(); ViewBag.Tables = new ArrayList(); ViewBag.Images = new ArrayList(); String[] tableNames = { "Technology", "Music", "Nature", "Health", "Sports", "Business" }; for (int j = 0; j < tableNames.Length; j++) { AsyncWorker aw = new AsyncWorker(); DataTable table = aw.LoadDBTextAsync("select DocumentTitle as Title, Username, FirstName, LastName " + "from Articles, Groups, SiteUsers where Articles.GroupID=Groups.GroupID and SiteUsers.UserID=Articles.UserID " + "and GroupName = '" + tableNames[j] + "' order by FirstName, LastName ASC"); table.TableName = tableNames[j] + " Articles:"; ViewBag.Tables.Add(table); } DatabaseWorker.disconnectDB(); ViewBag.Title = "Synchronous Test Loading Text From Database"; return View("RegularQueries"); }
/// <summary> /// Loads images from database using asynchronous method calling. /// </summary> public void GetTextAsync() { AsyncManager.Timeout = 10000; ViewBag.Images = new ArrayList(); DatabaseWorker.connectDB(); DatabaseWorker dw = new DatabaseWorker(); ViewBag.Tables = new ArrayList(); String[] tableNames = { "Technology", "Music", "Nature", "Health", "Sports", "Business" }; for (int j = 0; j < tableNames.Length; j++) { AsyncManager.OutstandingOperations.Increment(); AsyncWorker l = new AsyncWorker(); l.LoadDataCompleted += (sender, e) => { e.Data.TableName = tableNames[j] +" Articles:"; ViewBag.Tables.Add(e.Data); AsyncManager.OutstandingOperations.Decrement(); }; l.LoadDBTextAsync("select DocumentTitle as Title, Username, FirstName, LastName from Articles, Groups, SiteUsers " + "where Articles.GroupID=Groups.GroupID and SiteUsers.UserID=Articles.UserID and GroupName = '"+tableNames[j]+"'" + " order by FirstName, LastName ASC"); } DatabaseWorker.disconnectDB(); }