barcode scanner input asp.net OPERATOR OVERLOADING in C#

Include PDF417 in C# OPERATOR OVERLOADING

One challenge you might come across is when your schema changes. In this case you will need to disable CDC for the table and re-enable it when the change is complete. CDC will not break without this action, but if you add, remove, or rename columns, your captured data will be incomplete. Also, because change tracking and SQL Server Audit are synchronous, and CDC polls the transaction log after the fact, it is not so straightforward to capture the username responsible for the change. If this is an important part of your solution, then you are probably better off sticking to one of the other features discussed in this chapter, or resorting to more traditional means (for example, triggers, log reading utilities). To clean up the CDC settings, you can use the code in listing 18.

To move an e-mail message, follow these steps. 1. 2. Open the e-mail message. Tap the Move icon in the upper right corner. Choose a new folder and the message will be moved out of the Inbox.

Save Einstein2View.xib as shown in Figure 6 18, and check that your Resources folder contains both the .xib files you have created. Now, as we glance at our road map, we see that we have come a long way: einSwitchAppDelegate.h and einSwitchAppDelegate.m Ein1Controller.h and Ein1Controller.m Einstein1View.xib Ein2Controller.h and Ein2Controller.m Einstein2View.xib Done Done Done Done Done SwitchViewController.h and SwitchViewController.m Done

You can find instructions for building and running FileCatcher for C# in the readme.html file in the examples directory csharp/ch19.

OfflineViewController.m. The most important methods to take heed of are the following:

-- Get Top 25 executed SP's ordered by logical reads (memory pressure) SELECT TOP 25 qt.text AS 'SP Name', total_logical_reads, qs.execution_count AS 'Execution Count', total_logical_reads/qs.execution_count AS 'AvgLogicalReads', qs.execution_count/DATEDIFF(Second, qs.creation_time, GetDate()) AS 'Calls/Second', qs.total_worker_time/qs.execution_count AS 'AvgWorkerTime', qs.total_worker_time AS 'TotalWorkerTime', qs.total_elapsed_time/qs.execution_count AS 'AvgElapsedTime', qs.total_logical_writes, qs.max_logical_reads, qs.max_logical_writes, qs.total_physical_reads, DATEDIFF(Minute, qs.creation_time, GetDate()) AS 'Age in Cache' FROM sys.dm_exec_query_stats AS qs CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt WHERE qt.dbid = db_id() -- Filter by current database ORDER BY total_logical_reads DESC

xmlns:riaControls="clr-namespace:System.Windows.Controls; assembly=System.Windows.Controls.DomainServices" xmlns:domain="clr-namespace:17.Web.Services"

The first thing you ll define after adding a new Web Part to your solution is the View interface. This interface will be the contract that the Presenter uses to update the View. The View interface, IListsView, is implemented as follows:

private void showMachineStatistics() { machineStatsLabel.Text = machine.Stats; }

isn t a matter of whom your application trusts, but of who trusts your application. In the vein of increased security, Silverlight, like Flash before it, has restricted client applications to connecting only to the same domain that hosts the application itself. For those familiar with web services, this seems counterproductive, so the Silverlight team also worked in an exemption that requires the involvement of the server hosting the web service. Administrators of web servers can create policy files to give access to only the resources they want exposed to the requesting domains they trust. A simple XML file is added that tells the Silverlight application what it has access to on the foreign server.

System; System.Collections.Generic; System.Text; Microsoft.Office.Server.ApplicationRegistry.Administration; Microsoft.Office.Server.ApplicationRegistry.Infrastructure; WSSAdmin = Microsoft.SharePoint.Administration; OSSAdmin = Microsoft.Office.Server.Administration;

As you consider making index changes to a large, busy table, you need to consider your workload characteristics. You should be more reluctant to add additional indexes if you have an OLTP workload. You should take advantage of online index operations whenever possible if you re running Enterprise Edition in order to avoid locking and blocking issues during index builds. You also should consider using the MAXDOP option during index builds to prevent SQL Server from using all of the CPU cores for an index build. This may mean that the index takes longer to build, but the rest of your workload won t be starved for CPU during the index-creation process.