public sealed class

Objective: To implement a simple chat room. The chat room in this article only broadcasts messages sent by one client to other registered clients to demonstrate the ice multicast function. In the future series of articles, we will gradually improve

Attribute used for parameters Write multi-tier applicationsProgramWhether you want to write a large amount of similar data each timeCodeIs it boring? For example, you need to write the code that calls the stored procedure, or write the t_ SQL

C # Use the class keyword to define the class. Its basic structure is as follows: Class myclass { // Class member } After defining a class, you can access other places in the project to instantiate the class. By default, the class is

The OOP type can actually use this equation: Data + method, data determines the attributes of the class, and Methods Determine the behavior of the class. Methods are crucial in type design because they determine the functionality of the class. In

ArticleDirectory Catch exceptions private or simply handle exceptions and continue to throw How to quickly and efficiently define your own exception types Exceptions and Performance Read the Exception Handling Section in C #

SingletonMode requires that a class has only one instance and provides a global access point. There are many implementation methods which are best understood. Code Code highlighting produced by Actipro CodeHighlighter

  I am a beginner of C #. I write this essay to discuss and make progress together.   I have seen some examples of Singleton generalization in C #.ArticleAndCodeThere is a problem, that is, using new to create an object, such as the following

In C #, sqldmo is used to back up and restore sqldmo (SQL distributed management objects, SQL distributed management object) in Microsoft SQL Server. Sqldmo is an application used by the enterprise manager in Microsoft SQL Server. Program Interface,

If you do not know much about reflection, read this blog to get a rough idea of reflection. What is reflection? Attribute) 1. C # built-in featuresA feature is an object that can be loadedProgramIn the set and Assembly objects, these objects

When I introduced Visual Basic 9.0, I mentioned the concept of Tuple many times. At that time, it appeared as an anonymous instance. Now let's discuss this concept separately. Tuple is often translated as "group meta". In most languages that support

The meaning of the Distinct in Linq is to remove repeated items. How can we define repeated items? Microsoft provides the default solution: an instance of IEqualityComparer is provided. If you do not upload an instance of IEqualityComparer , It is

Overview The control templates in WPF and Silverlight support the view of custom controls. The so-called appearance refers to the visual effect of controls, while the feeling is the responsiveness of controls interaction, for example, you can change

In some ajax applications, we may use the following scenarios: $.post('/Test/PostTest', { values: [1, 2, 3, 4] }, function(result){ //TODO:}, 'json' ); We want to submit an array to the server. So we created the following Controller to process

Polymorphism means that the same object has different behaviors in different scenarios, that is, executing different code. Of course, this different scenario refers to the actual object that the class Pointer Points to, then the actual object method

Overview:  This demo mainly explains how to use the WCF Service in wf4 and how to call the WCF Service in Silverlight. Because Silverlight is used to render the UI, and the database is accessed by using LINQ. Therefore, the name of this article is

I recently had to deal with creating custom sections in the Web/APP. config file. In the. NET 1.x realm, I had to create a section handler which implements public class customsectionhandler: iconfigurationsectionhandler. In 2.0, we have to create

This series of articles will start from the instance and end with the instance. This article explains how to use WCF and WF in our project. We will find that using WCF + WF will create a level that other technologies cannot reach. Finally, I will

1. constant Constants are symbols that will never change. Its value must be determined at compile time. After compilation, the CLR saves the value of the constant in the assembly metadata, which means that the constant must be a primitive type. A

Read the statement: Copy Code code as follows: String str = configurationmanager.appsettings["Demokey"]; Write statement: Copy Code code as follows: Configuration CFA = configurationmanager.openexeconfiguration (

Look at the explanation on MSDN First: HttpContext.Current.Cache: Get the Cache object for the current HTTP request. Httpruntime.cache: Gets the Cache for the current application. We'll look at the implementation of Httpcontext.cache and