crystal reports barcode font UNDERSTANDING PERFORMANCE OPTIMIZATION METHODS in visual C#.net

Render QR in visual C#.net UNDERSTANDING PERFORMANCE OPTIMIZATION METHODS

The original implementation of STL, done by Alexander Stepanov, was considered an excellent application of C++ templates, so the entire STL library was adopted quickly by the C++ standards committee. It had a very appealing design and fit perfectly with Bjarne Stroustrup s idea of what should be possible with templates. One idea is the separation of algorithms and containers. Algorithms, such as sorting, usually do not depend on the specific implementation of the container, but often depend on specific operations that most containers and elements of containers support, such as comparison, insertion, deletion, and so on.

Run the SQL script in Listing 8-5 to insert data into these two tables and run the script in Listing 8-6. You will see that the correct data is returned. Listing 8-5. Sample Data to Insert into the Tables Created Previously INSERT INTO UserTable ([Password], FirstName, LastName) VALUES ('password', 'Henry', 'Li') GO INSERT INTO UserTable ([Password], FirstName, LastName) VALUES ('password', 'Emma', 'Li') GO INSERT INTO UserTable ([Password], FirstName, LastName) VALUES ('password', 'David', 'Kruger') GO INSERT INTO Address( UserID, Address1, City, [State], Zip, County, Email1, Email2 ) VALUES( 1, '12 King Street', 'Salem', 'OR', '97304',

Although much of asynchronous programming is complex, the BackgroundWorker class makes it simple to perform a task in the background on a separate thread. This class was designed primarily for GUI programming (Windows Forms and WPF) to allow them to offload time-consuming tasks from the main thread to a background thread. Figure 22-1 illustrates the key members of the class. The following is an overview of these members: The first two properties shown in the figure are used to set whether the background task can report its progress to the main thread and whether it supports cancellation from the main thread. You use the third property to find out whether the background task is running. The class has three events, which are used to signal different program events and states. You need to write event handlers for these events to take whatever actions are appropriate for your program. The DoWork event is raised when the background thread starts. The ProgressChanged event is raised when the background task reports progress. The RunWorkerCompleted event is raised when the background worker exits.

class Program { static void Main() { if (FirstEnum.Mem1 < FirstEnum.Mem2) Console.WriteLine("True");