C#

The complexity analysis set and cycle set of the two tables   Question: There are two tables with the same field. Now, we need to select the records with the same two fields. What can be done besides using two repeated loops? (Some questions)  

C # required knowledge -- Variable Length Parameter -- Params, When the number of parameters is variable, Params indicates that the number of parameters is unknown. When using Params, you need to know the following: 1. If the parameters passed by

Simple factory with design patterns and factory with Design Patterns I. DefinitionA simple factory is not a design pattern, but rather a programming habit. Ii. Category chart Iii. Example /// /// Pizza shop /// public class PizzaStore {public

C # string processing, object reference and inheritance (Tenth day)It's another week. Now it's time to sum up. Let's continue to summarize what we 've learned in cloud and college. Theory: The difference between StringBuilder and String: A new

Simple use of log4net and log4net Use log4net to record system logs and exceptions... it is very convenient. You can define the file storage path, file size, content format, and so on. There are also a lot of instructions on the use of log4net on

C # input values in the form, Sort it out: 1. static variable value transfer, which is very simple and suitable for simple non-instance public calss form1:Form{ public static int A;}public class form2:Form{ form1.A=1; } 2. Delegate value

C # parameter transmission mode between different threads in the same application domain, I haven't written a blog for a long time. I don't need to write code for the latest project. Today, let's take a look at the parameter passing methods between

Floating Point EncodingFloating Point Number Encoding (1) floating point:The data that can be moved to the decimal point is called a floating point. It can be expressed as follows: N = M * REWhere, M-tail number,The base of the R-level (that is, the

Web user control development-star rating control, web -- This article shares a simple and easy-to-use star rating control.I. paste several test images first: II. Implementation of star rating controls: RatingBar. ascx: " Title = "5

. Net to determine whether an object is a numerical type. Summary (high nutrition content, including final code and running points),. net Value After the previous article was published, it triggered a positive discussion and played a leading role.

Asp.net resumable upload, Using System; using System. data; using System. configuration; using System. collections; using System. web; using System. web. security; using System. web. UI; using System. web. UI. webControls; using System. web. UI.

C # Implement Bubble sorting, I. algorithm principles   1. Compare adjacent elements. If the first is bigger than the second, exchange the two of them. 2. perform the same operation on each adjacent element, starting from the first pair to the last

. Net determines whether an object is of the numerical type. net object Value Type At first glance, it was a very simple task, but suddenly it was a bit difficult to start. First of all, we get the Type information through the GetType () method

SqlBulkCopy: Copies data in batches to the data table and sqlbulkcopy data. UseSqlBulkCopyClass can only write data to the SQL Server table. However, the data source is not limited to SQL Server; any data source can be used, as long as the data can

C #-cyclically scroll subtitle, timer, from left to right, from right to left, pause --- ShinePans The Left attribute of Lable can be changed, but the Right attribute cannot be changed. Therefore, we can use this feature to perform auto-incrementing

C # class access modifier, By default, the class is declared as internal, that is, only the code in the current project can access it. You can use the internal access modifier keyword to explicitly specify, but this is not necessary. Classes of this

C # foreach principle and simulation implementation, Public class Person: IEnumerable // defines a person class and implements the IEnumerable interface (or you do not need to implement this interface to directly write a GetEnumerator () method in

AutoMapper Porter ConfigurationReview In the previous articles, we used the basic usage and custom ing of AutoMapper. I believe some of you can use the powerful Mapping tool of AutoMapper. However, do you still remember that the previous articles

Lambda expression to SQL statement class library, lambdasql /* Author: Tao nature* Personal mail: myyangbin@sina.cn* 2014-10-1*/Lambda expression to SQL statement class librarySource code download: http://download.csdn.net/detail/xftyyyyb/8044085I.

Blind Zone generated when initializing static members and initialized static blind zone Static members belong to Classes rather than instances. Static members have a wide range of applications. For example, public static member values can be