About database standardization

First paradigm Each field in the table must contain only one type of data, and each data must be stored in only one place. Example of a violation of the first paradigm: a field contains two data, or duplicate fields. Second paradigm When a table

Interesting phenomena brought about by extension methods, interfaces, and inheritance

First, let's take a look at the simplest extension method of the simplest class and corresponding class: In this way, a extends a helloext method, which can be called as follows: Then let's take a look at the simplest extension methods for

Convert from XML file to CSV file

Reserve Public void transfer (string inxmlfilename, string outcsvfilename){// Open or createFilestream filecsv = new filestream (outcsvfilename, filemode. openorcreate, fileaccess. Write ); Streamwriter writercsv = new streamwriter (filecsv

Quickpart vs smartpart

Currently, I know that there are three user control wrappers available for MOSS: Delegatecontrol ------ built-in in MossQuickpart ----------- developed by kaneboy, supports Custom AttributesSmartpart ----------- developed by Jan tielens, does

EXT 2.0 learning controls

EXT is a framework based on ajax ui. It is mainly used as the UI and the designed form is very beautiful. Here we will not talk much about it. Let's look at the basic controls: Demo1: panel control Ext. onready (Function(){VaROBJ =NewExt. Panel (

WPF series learning --- ListBox

Recently, I was not very busy. I came to learn something. I saw a lot of friends on the Internet studying WPF, and I also came to give myself a chance, Put your ownArticleWrite it down, hoping to help 0.1% beginners, so I will not be able to write

Turn: 15 good programming habits

From: http://www.javaeye.com/news/20494 Editor's Note: This is a foreign countryProgramSome programming habits summarized by Member Al 1200b.1. Before coding, you need to have a formal or rough design of the solution for coding implementation.

Silverlight 3 first taste: see the light

See the light is Microsoft's advertisement for the release of silverligth3. However, I personally think that the previous Silverlight light up your web is more imposing. When creating a Silverlight project, we can see that there is a template

Jquery performance optimization skills (1)

From: http://ryxxlong.javaeye.com/blog/622460   This article reference: http://www.blueidea.com/tech/web/2009/6737.asp (this article made a lot of modifications) Http://www.artzstudio.com/2009/04/jquery-performance-rules) Reference:

Discussion on grass-roots management

Almost all industries have grass-roots supervisors (or grass-roots managers), while grass-roots supervisors in the software industry are generally project managers, technical managers, development managers, and team leaders. It is responsible for

Learning winform programs

Add skin for the form: PublicForm1 () {initializecomponent ();This. Skinengine1.skinfile ="Calmness. SSK";This. Skinengine1.skinfile ="Glassbrown. SSK";This. Skinengine1.skinfile ="Page. SSK";This. Skinengine1.skinfile ="Pagecolor1.ssk";This.

. Net4 Expression Tree entry (4): Evaluate all prime numbers within n

  Directory . Net4 Expression Tree entry (1): Hello world! . Net4 Expression Tree (2): ifthen, switchcase . Net4 Expression Tree (3): loop   We have already introduced the branch and loop of the. net4 Expression Tree. It is time to write

Code Book 2 Reading Notes 15-Chapter 26 code-tuning techniques

Chapter 26 code-tuning techniques CodeAdjustment Technology26.1 Logic· Stop testing when you know the answer stops judgment after knowing the answerFor example, use a loop to find the first negative value in an array and then use break to stop the

Gridview determines an object class

1. Create an object class named customer first. The Code is as follows: using system; using system. collections. generic; using system. using system. web; namespace CDM. linqtoxml { public class customer { Public int ID { set ;

Code Book 2 Reading Notes 01-Chapter 6 working classes

Chapter 6 working classes (page 162-197) 6.1 class foundations: abstract data types (ADTs)Class basics: abstract data type (ADTs)ADT refers to a set of data and operations performed on the data.6.2 ADTs and ClassesGood class interfacesImplement

The image becomes large when the mouse goes through

Title = "Image 1"/> image 1

Yuan You -- happy May Day

Today is May Day, and it is a beautiful day for a girl. You can put down your work and have fun. Indeed, very few programmers go out and have fun at work. I think I have made a lot of changes in the past. I registered in July and it took five

My hometown has an earthquake (Sichuan)

My hometown is in an earthquake in Sichuan. Now I am in a hurry. I cannot get through the phone number at home. I don't know if my relatives, friends, and fellow villagers are at home. I am here to serve you.You may wish you all peace and hope that

Define a method and take the value in the database as a parameter

We often use the Datagrid Control in projects. Some values read from the database may not be readable by users. At this time, we need to convert them,For example, if the database contains a Sex field of the int type, "0" indicates male, and "1"

Silverlight 3 Collection

I don't know if this article has slowed down, but it seems that Blend3 and Deep Zoom were just released in July: Silverlight 3 ToolsAdd-on for Visual Studio 2008 SP1 for developing Silverlight 3 applications   Expression Blend 3 + SketchFlow RCWith

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