C#

Multi-threaded collection Security If a set is used in multiple threads without any security processing, it is very easy to cause system crashes or various errors. In the latest project, a set is changed after socket communication. As a result, the

IBatis. NET Development Study Notes-Brief introduction, ibatis Study Notes 1. Overview The iBATIS DataMapper framework allows us to use JAVA or. it is very easy for NET Applications to access the database. What is different from Hibernate,

C # several types of reference type conversion, Conversion of reference types in this article: convert child classes to parent classes, convert parent classes to child classes, and not between child parent-level relational classes.   □Implicit

C # execution sequence of Constructor Using System; using System. collections. generic; using System. linq; using System. text; execution sequence of the namespace constructor {public class MyBaseClass {public MyBaseClass () {Console. write

C # design mode (19) -- State Pattern)I. Introduction in the previous article, we introduced the problems that can be solved by using the stateman mode and observer mode. In this article, we will first use an example of a bank account to explain the

C # download the HTML source code of the webpage, Public static class DownLoad_HTML{Private static int FailCount = 0; // record the number of download failures Public static string GetHtml (string url) // enter the url to download{String str =

Beginner notes (C # events ), 1. Declare events EventHandlerIs a predefined delegate that defines a method without return values. In. Net Fromwork, the format is as follows: Public delegate voidEventHandler(Object sender, EvenArgs e) The sender type

Avoid backtracking and backtracking I didn't come to the blog Park for half a month. I changed my job and started to have a lot of complicated things. I had no time to write anything. This article was written elsewhere about half a year ago, but I

C # reflection application, There is a very practical method in the project framework. It is used to obtain the post data from the client and automatically assign values to various attributes of the object. In this way, there is less code written in

C # basics, Constraints Description T: Structure The type parameter must be a value type. You can specify any value type except Nullable. T: Class The type parameter must be of the reference type.

C # Assembly generation 05. Let the Assembly contain multiple modules, This article contains multiple modules in a program.   □Create 3 modules → Delete some files in the as folder of drive F, with only three files left→ Open the MyFirstModule.

C # WebQQ protocol group robot (3)     Sometimes you need to add some functions by yourself. Here is a method. When debugging webqq robots, I used google's F12 developer tool to capture network packets. Most of webqq's GET request parameters were

How to use C # To construct a Spider Program, Spider is a very useful program on the Internet. Search engines use Spider programs to collect Web pages to databases. Enterprises use Spider programs to monitor competitor websites and track changes,

Excel integration, excel Integration Recently, some projects are integrated with Excel. The problem is as follows: How to operate in Win How to handle the Excel Process How to Create AddIn How to apply in the Web Other ..   // WinApplication

C # Extension MethodThe extension method enables you to "add" methods to existing types without creating a new derived type, re-compiling, or modifying the original type in other ways. An extension method is a special static method, but it can be

C # extension method, The extension method enables you to "add" methods to existing types without creating a new derived type, re-compiling, or modifying the original type in other ways. An extension method is a special static method, but it can be

Farewell to where 1 = 1 Best Solution sharing, goodbye to where I haven't used where 1 = 1 for two years. I didn't expect to see it again after I changed my company. I searched on the network and found that no one provided a better solution to solve

Csharp: Getting all image files in folder, csharpgetting 1 // 2 // 3 /// 4 /// 5 // 6 protected void Page_Load (object sender, eventArgs e) 7 {8 if (! IsPostBack) 9 {10 path = Server. mapPath ("images/"); 11 12 String searchFolder = path; 13

Json.net dynamic serialization and processing of time formats, json.net serialization About Json processing in my work 1. Dynamic serialization Second: Time Format Processing Generally, a class may have 10 to more attributes, but we only need to

Multi-thread and multi-thread ( This article is followed by the previous article to continue to learn multithreading. Thread Synchronization In most cases, threads in the computer run concurrently. Some threads are independent and run