C#

Comparison between databases, rule bases, and knowledge bases. Most information systems are database-based. Many companies feel that they are falling behind because competitors have deployed intelligent applications based on Rule libraries and

Differences between value types and reference types1. Value Type and reference type We divide the data types we learned into two sets: Value TypeAll numeric types (longint short byte ulong uint ushort sbyte decimal double float), bool, char,

Concerning the design of the orm framework, it is also necessary to talk about Model parsing. It is also an important part, and the implementation is relatively simple. The main technique used for Model Parsing is reflection, that is, ing the

The source code from other places is problematic. /// /// calculate the intersection of two straight lines /// /// coordinate 1 of L1 Points /// L1 coordinate 2 /// L2 coordinate 1 /// L2 coordinate 2 /// public static PointF

Preface This article has been updated to http://www.cnblogs.com/aehyok/p/3624579.html. This article mainly records the following content: Recommendation 42: use generic parameters to be compatible with the non-variability of generic

In C # versions earlier than Version 2.0,Delegate DeclarationThe only way is to useNaming Method. C #2.0 introducedAnonymous MethodIn C #3.0 and later versions,LambdaExpressionReplaces the anonymous method as the preferred method for writing Inline

Generally, we need more functions by expanding a parent node and expanding all child nodes (I .e., linkage) at the same time ), but sometimes we also need to expand all the parent nodes on a node until the current node, for example, when deleting a

C # modify the permissions of files or folders to add full control permissions to specified users and user groups // Add the "Everyone, Users" User Group's full control permission FileInfo fi = new FileInfo (excelPath); System to the Excel file.

I. initialize the members and elements of the index. 1.1 think about the original initialization set Dictionary. The unit test below assigns a [TestMethod] public void DictionaryIndexWithoutDotDollar () value to a set through the set initialization

In the past, I wrote an article about the implementation of automatic recharge for China Unicom recharge cards. Recently, I found that the UNICOM official website has been revised. I casually read the new verification code, which is different from

Reprinted from http://www.cnblogs.com/DotNetNuke/archive/2009/04/23/1441899.htmlUse SandCastle to create. Net Help documentation Sandcastle is a tool provided by Microsoft to generate help files based on XML comments and DLL files. It is currently

Source code download Using System;Using System. Collections. Generic; Using System. Text; Namespace FY. Logfiles { /// /// Log file configuration class/// Public interface IHelper { /// /// Log Level/// /// Int GetLogLevel (); /// /// Server ID/

21. Restricted type visibilityNot all types require Public. You should give you the least visibility of the type to achieve your goal, internal or private classes can implement public interfaces. Many independent classes should be created internally.

I have read this suggestion twice. 1. Implement the IFormattable interface to implement the ToString () Output Format String. Generally, we provide the format string output for the type by rewriting ToString (), however, this method provides a very

1. ArrayList ArrayList is similar to an array, which is also called an array list. ArrayList can be dynamically maintained, while the array capacity is fixed. Its indexes will be re-allocated and adjusted based on program expansion. Like an array,

Step 1 First, add the IrisSkin2.dll file [to the current project reference (solution Resource Manager-> current project-> reference-> right-click-> Add reference, find the IrisSkin2.dll File The IrisSkin2.dll file is best placed in the current

Although the C # version of GDAL has not been exported to many algorithm interfaces, the interfaces in reading and writing data are basically completely exported. The ReadRaster and WriteRaster methods are used to read and write data. At the same

To meet certain special needs, characters must be transcoded according to rules to facilitate transmission, presentation, and other operations. Let's take a look at the following transcoding to find out its usefulness. 1. String transcoding

After analyzing the details of some C # concepts in the previous article, I have gained a lot. In the past, when I was reading a book, a sentence swept away, but now when I re-read it, every sentence found to contain a lot of information. This

First, let's replace the principle. This is essential to understanding polymorphism. The Wikipedia provides the following definition of the Lishi replacement principle: Why does the Child class Replace the parent class without affecting the function