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Object-oriented encapsulation of change, or more accurately, should be encapsulated in the same place, leaving a change in the place can be changed when needed, then where will change? 1, data changes such as a factory to produce a paper box, program to calculate its volume, need to have a long, wide, high size, the size of the box is fixed, then in the code directly hard coding, such as Long 1, Width 2, high 3, method to return 1*2*3, or even directly return 6, without any problems. Now the demand has changed, the factory produces two sizes of boxes, the other ...

Introduction in Windows Mobile and wince development, manipulating related devices directly on your PC is an essential step. This article describes how to display and manipulate Windows Mobile on your PC, including the use of ActiveSync Remote display and Mymobiler two methods. Install ActiveSync regardless of that method, installation ActiveSync is required, please go to the link below to download the installation ActiveSync 4.5. Activesyn ...

Visual Studio.NET from 2003 to now 2008, along the way to slowly strong ... 　　From the previous vs2003 can automatically change your HTML code to now in the vs2008 can directly to the HTML code for the standard authentication and hint, very difficult. Forums are also often engaged. NET development of the novice friend asked some ASP.net development process and web standards conflict between the problem, in fact, is the client code generation problem. More advanced development level of things I also ...

When you develop a Web site using the Entity Framework in. Net 3.5, you encounter a problem: When you add a record, you cannot use the default value of the database for datetime-type data. 　　The specific situation is this, my database has a users table, three fields, Id,username,createtime. ID is int type, since growth, primary key username is Nvchar (10) type, not allowed to be empty createtime is da ...

Combined with their 4, May development of mobile video surveillance system experience, to the time of the Windows Mobile development summary. Speaking of Windows Mobile development, I started almost from scratch, mainly engaged in j2ee/asp.net Web application development, never contacted mobile application development; Say 0 start, exaggerated point, fortunately at least for their own decision to adopt the development tools VS 2005 still have a good understanding of, from the university to use it to develop asp.net ...

Perhaps a lot of people look at this title will disdain to look down, can say that more online to the issue of this article, indeed, when I encountered this problem, I also first found a lot of information on the Internet, but there is no suitable, or said not to speak clearly, and then, I asked a few cows, and several colleagues, also did not understand , and then, with the help of my boss, finally solved, so I think there is a need to write out to share with us ~ Nonsense said so much, or go straight to the topic ~ My request is this, the page has a form, the content of the form is bound ...

There are a lot of articles about removing HTML tags in the garden. A common experience is to use the Regex.Replace method to replace the positive. Here is an article using this method how to remove HTML tags in C #. I'll post the code for the method below, as listing 1-1 listing 1-1 refers to http://www.cnblogs.com/zoupeiyang/archive/...

Enable Forms Authentication I'm sure everyone knows how to enable forms authentication, but here I'm just a little wordy. All we have to do is configure the following in the Web.config file: <authentication mode= "Forms"/> After that, ASP. NET runtime is aware that we have enabled forms validation, activating the FormsAuthenticationModule module at the verification phase of the lifecycle ...

Text: In order to make the hierarchy clear and easy to read, the entire solution is as follows: Bitmapcutter.core is a picture of the server-side processor, class diagram is: A simple description, more information to view the source note: Cutter for the Crop object, used to store the data submitted by the client via Ajax. Helper for the image processing class, including picture rollover (Rotateimage ()), picture cropping (Generatebitmap ()). Callback to serve ...

Because you want to use Windows Mobile Emulator to test network communication programs, find ways to configure emulator network connections. Find some articles on the internet, many say that you need to install Virtual PC 2007. For example, the following article enable receptacle Connection Windows Mobile 6 emulator If you need Virtual PC 2007 to download HTTP://WWW.MI ...

In an era of increasing development patterns and widespread frameworks, more and more people rely on the development of the inherent framework pattern and ignore the understanding of the underlying architecture of the project. 　　So when you deploy the project structure, you will encounter a "circular reference" problem that I encountered today. 　　 　　In fact, it's not complicated, I have 5 projects a,b,c,d,e, and then I reference the Class B in Project A, and then I reference the class of C in B, and then I refer to the class in C, which makes a circular reference. Then encounter such a problem, how to solve ...

I. Summary this article summarizes how to enable gzip compression for Web sites that are hosted by IIS, thereby reducing the network transmission size of web pages and increasing the speed at which users display pages. Two. Foreword. The knowledge of this paper is from the Internet collection and collation, mainly from the Chinese wiki. When you use YSlow to detect which optimizations are enabled on your Web site, gzip is a critical item, and starting GIP compression will immediately reduce the network transmission size of the page. Three. HTTP Compression overview HTTP compression is a way to transfer compressed text content between Web servers and browsers. H ...

In the previous section, "WCF Distributed Framework Basics" we introduced the concept and communication framework model of WCF services, and gave the implementation code of WCF programs based on custom managed services. Consider the managed hosting service configuration and the Client Add reference in the WCF Distributed development project. Two links are the most error-prone. For most people who want to learn about WCF distributed development, it is difficult to successfully develop, configure, and deploy your first WCF service. A lot of information introduces the basic concepts of WCF. But ...

Fiddler is a free proxy for recording host HTTP (S) communications, has a rich user interface, supports monitoring requests and responses, sets breakpoints, and modifies input and output data. 　　It also supports a variety of data transformations and previews, such as extracting gzip, DEFLATE, or BZIP2 format files, and displaying pictures in the preview panel. Fiddler can be downloaded from here free of charge, the current stable version is v2.2.0.7. Recently updated beta v2.x version of ...

Ajax consists of HTML, JavaScript™ technology, DHTML, and DOM, an excellent way to translate clumsy WEB interfaces into interactive Ajax applications. The author of this series is an Ajax expert who demonstrates how these technologies work together-from a general overview to a detailed discussion-to make efficient WEB development a reality.　　He also uncovered the mysteries of Ajax's core concepts, including XMLHttpRequest objects. Five years ago, ...

In the article "Casual id", the author raises the question of why accessing ClientID in the ItemCreated event can cause MyButton to be unable to respond to an event, in fact MyButton cannot respond to an event because his ID on the client is changed, This article starts from UniqueID and ClientID, carries on the thorough discussion, shows how UniqueID and ClientID are generated, when to generate, and at the same time answers the author's question in the text of "Random Comment ID". Why there are uniqu ...

WPF has come into our lives for many years. (Writing this sentence makes me think of "I don't do Big brother for many years". Personally think that in UI practice, users need an easy-to-use, more gorgeous interface. These two should be the most basic and important purposes. And for developers it is the easiest way to develop the most beautiful interface, and efficiency can not be too bad. Is it too much to ask? In addition to some web development and special applications, few development groups are equipped with separate art, at least for now! Based on your current understanding of WPF ...

Create the installation package Figure 1 Enter the project name and click OK to complete the project creation. When the deployment project is created, Visual Studio displays the file System (Setup) tab: Figure 2 Right-click the Setup project, and then click Project Output under the Add menu: Figure 3 Add project output The Group dialog box will open, with primary output, localized res selected ...

In the previous article we created a simple control firstcontrol, now let me explain how to use and debug your own controls.       I want to write the process as detailed as possible, so that you want to learn the control development of friends easy to use, experts forgive. Add a Windows Creator Project (...) in the same solution.

All of the illustrations in this article are purely personal (refer to the way metadata is stored in assembly) and may be different from the real situation. The green in the figure indicates the public method, and the red is the private method. This article will use the following four cases to analyze how interfaces in C # work. 1. The public method implements the interface method although C # does not specify an interface to control how the interface methods are defined, the default interface methods are all public (this can be seen from the decompile IL Code). The following is the interface Il code that is viewed using reflector. C ...