C#

TCP communication requires both parties to communicate online. Therefore, the server must be started to listen before the client can obtain the connection. The server code: Static void Main (string [] args) {TcpClient client = null; NetworkStream =

Using System;Using System. Collections. Generic;Using System. Web;Using System. Net;Using System. IO;Using System. Web. Services. Description;Using System. CodeDom;Using Microsoft. CSharp;Using System. CodeDom. Compiler;Using System.

JavaScriptSerializer serializes DateTime data into values similar to \/Date (626543800000) \/During serialization. Many methods are not satisfactory, finally, I found a perfect solution in a blog. Address: Workshop:   public class DateTimeConverter :

The BackgroundWorker class is located in the namespace of System. ComponentModel. It is mainly used to asynchronously perform a long operation and then securely update the control attributes of the UI in the event completion. Controls in the UI are

1. Windows service programs I don't quite understand the profound meaning in this case. Later, I learned that this is an application that can run for a long time. This service only needs to be configured to automatically start when windows is

When I first started learning C #, I heard that CLR has a special memory management mechanism for the String class: Sometimes, two String class objects are explicitly declared, however, they point to the same instance. As follows: String s1 = "Hello

Recently, I came into contact with the Spring. Net Framework and learned about its integration with Quartz. Net, namely the Spring. Scheduling. Quartz module. Spring adopts the spring Core Injection idea through the encapsulation of Quartz. Net,

IronMan combination   In the previous article, we talked about how to deploy "weapons" on "components". We still need to talk about "weapons", but it is about "weapons. This article introduces the rational use of "weapons" without talking nonsense.

There are two ways to access data or call Methods: one is to access or call data by name, and the other is to access the call through the memory address. To ensure system security and stability, the NET Framework CLR library does not allow programs

Because the project needs to use Linq to query data, but when performing multi-condition queries, you need to use a lot of if (...! = String. empty. The following two methods are found on the Internet: one is a class written by a foreigner, which is

The byte [] byte array replacement operation is often required for communication-related data operations, such Several replacement methods are provided. ////// Binary data operation ///Public class HexUtility {////// Binary replacement. If no

Yield It is usually used in the iterator to provide a value to the IEnumerable object or end the iteration. For example: yield return expression; yield break; Var Defines variables of the implicit type. var i = 5; var s = "Hello";  

Preface Generic is not a feature that comes with C # From the very beginning, but a new feature that is implemented after FCL2.0. Based on generics, We Can parameterize types for code reuse in a larger scope. At the same time, it reduces the

C # simulate MSN form Jitter Form jitter is a very interesting thing. Let's take a look at its principles.In fact, it is to generate a random number and then change the coordinates in the upper left corner of the Form.I use a loop to get it. In fact,

I plan to write several articles specifically to introduce HashTable, Dictionary, HashSet, SortedList, List and other collection objects, and analyze the principles from the inside so that they can be selected and used in practical applications.

I have heard of the three-tier structure a long time ago. At that time, only the three-tier structure was known to separate the system interface from unrelated programs such as database operations. The original simple implementation is indeed the

Using (FileStream stream = new FileStream ("C: \ Users \ XXXXXX \ Desktop \ 1.xls", FileMode. Open )){HSSFWorkbook workbook = new HSSFWorkbook (stream );HSSWSheet sheet = workbook. GetSheetAt (0 );HSSFRow row = sheet. GetRow (0 );HSSFCell cell = row.

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

Create a dateset and add columns to it DataSet dsClass = new DataSet (); DataTable dtClass = new DataTable ("Class "); DataColumn name = new DataColumn ("name", typeof (string); // Add a column name DataColumn url = new DataColumn ("url", typeof

This trap comes from a requirement that the data needs to be processed asynchronously in the background. After processing, the event that is triggered to be processed is probably written as follows: EmployeeCollection data = += action = (d) =>,