C#

Before entering the subject, we need to clarify two concepts:1. What is a valid date range? This issue varies with different application scenarios. Here we adopt the conventions in MSDN: DateTimeValue Type indicates the date and time between

1 using System;2 using System. Net;3 using System. Net. Sockets;4 using System. Text;56 public class SynchronousSocketClient {78 public static void StartClient (){9 // Data buffer for incoming data.10 byte [] bytes = new byte [1, 1024];1112 //

Implementation principle: 1. Monitor the directory page of the novel at intervals to determine whether there are new chapters (I compared the number of chapters obtained each time. If this acquisition is more than the previous one, is updated) 2.

With the application and development of the Internet, regular expressions play an increasingly important role in application systems! They are often the prosecutors of a system and a website, and play an intuitive and important role in information

Today, we found that one of our Windows services could not be stopped normally, but we had to kill the process. To find the cause, I debug locally and found that multithreading is used in the program, and the code is stuck in the workThread. Abort ()

C # asp.net modify the webconfig file configuration # region modify the config file // // modify the config file (AppSetting node) /// /// key /// value to be modified public static void UpdateAppSetting (string key, string value) {XmlDocument

1. Create a custom type. 2. inherit from the IHttpHandler interface. 3. Configure the Web. config File, registration type 4. Access [csharp] public class QuickMsgSatisticsHandler: IHttpHandler {HttpContext context = null; # region IHttpHandler

  -- [Advantages: 1. Reduce coupling between objects. 2. New commands can be easily added to the system. 3. You can easily design a combined command. 4. Call the same method to implement different functions. Disadvantage: using the command mode may

In actual projects, there will be a large number of users connecting to the database and requesting various operations. At this time, we need to process each request creation thread. At this time, the problem arises, what should I do when all

This is an excel file exported through Microsoft office. Why is it exported through Microsoft office? Because npoi office is used for export, it does not support one format (excel file in html format ), however, office support is supported.

Recently, I have been thinking about the delegate and event mechanisms in C #. I suddenly think that the delegate and time mechanisms in C # are actually the same as the function pointers in C ++, probably because C # has no pointer, so we have

Generally, object-oriented programming languages require that member variables cannot be directly exposed to external access, as follows:Public class{Public int Age; // This is not good. Some programmers may assign-1 to Age later.}In order to

C #, natural progressWith the retreat of Visual J ++, Microsoft introduces C # to fill this gap. Michael L. PerryMallard software designerAugust 2000 Microsoft's new vision of the Internet is far from today's online content network. Microsoft

Tips on how to use the DNS class and get the IP address of the machine Introduction This article is not a technical overview or a large-scale discussion, but more like a collection of tips on how to get an IP address or host name. You can use the

In C #, how do I customize events? Wason (zhuhai) Only one instance is used to describe how to use custom events in C. Write a class that contains the Custom Event onSendMsg. File Name: ChatServer. cs public class ChatServer { public delegate void

  This article describes a very important and one of the powerful tools in C #. This is based on a famous design pattern called Observer. observer design pattern dictates what is called as subscriber-publisher paradigm. an example will make it clear.

After studying it for a day, I tried to return a structure array in the parameters of the function. This is for you to share and save your learning time. Instance:/// /// User Information Structure/// Public struct TUSER{Public string

Last time I talked about how to do this in ADO. . NET to execute the SELECT statement. This time, we will look at how to execute the statements such as DELETE, UPDATE, and INSERT.We can also see through examples this time, in which we use the System.

C # containers Now I want to talk about the container in C. this is a very important topic, because no matter what program you write, you can't help dealing with containers. what is a container? (inverted !). A container is something that can hold

A single Write Program/multiple read programs have been provided in the. Net class library, that is, the System. Threading. ReaderWriterLock class. This article explores multi-thread programming in c # by analyzing a common single write/multiple