C#

I have been engaged in B/S-based Web development since my official work. I have not studied C/S for a long time, but I was entrusted by my friends, this is a small function for him to take photos. In fact, there are a lot of similar code on the

To improve the technology, I want to understand some problems. I have been engaged in C # development for two years and have been familiar with the concept of event delegation, sometimes, when I look at the articles of other Daniel in the blog Park,

I have previously written an article titled "C # Getting the local name, IP address, domain name, and physical location through network programming", which can be used to obtain the physical location of the Local Machine Based on the entered website

Take this project-UML diagram. After learning it, I don't feel any gains. I don't know how to figure it out. I always think that painting is not good, but it cannot be wrong. It can only be regarded as low-level. For a UML diagram, there is no right

C # The discussion of Multi-inheritance seems to be an old question, but today this article will show you that C # multi-inheritance may be something you have never heard, people who even invented the C # language never thought that I would write

I believe everyone has used it, but I think it is quite helpful, because it is always used to intercept code at ordinary times, so I 'd like to share it with you.Generally, you can use the built-in split of string, but the split can only be

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 //

If (! String. isNullOrEmpty (Year) {// The first method var y = Convert. toInt32 (Year); pInfo = pInfo. where (p => p. startTenderDate_T.Value.Year = y); // The second method is pInfo = pInfo. where (p => p. startTenderDate_T.Value.Year = Convert.

From msdn, we know that the time complexity of the Clear method of Array is O (n ). Today, let's test whether this method is fast or self-compiled: Is Clear () fast, or directly new an object is fast. Program viewing private void Experiment()

Abstract: This article describes how to define a C # generic class and how to implement the inheritance, methods, and constraints of the generic class. C # generics parameterize types and abstract them as parameters, so that we can better reuse code

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

1. 2. Automated memory management)Manual memory management requires programmers to allocate and release memory blocks themselves. This requires the programmer to have a clear mind and a very good understanding of the entire operation process.GRASP

Chapter 4: adding and removing boxes in C # C # There are two types in the runtime: reference (class declaration in C #) and value (value) (Structure declaration in C ). The reference and value types vary in several important aspects. The Value Type

23. constructor and destructor You can specify the optional constructor parameters: Class Test { Public Test (): this (0, null ){} Public Test (int x, object o ){} } You can also specify the static constructor: Class Test { Static int []

Introduction: every 10 years or so, programmers need to spend a lot of time and energy learning new programming technologies. In 1980s, it was Unix and C, and in 1990s it was Windows and C ++. Now it has reached Microsoft's. NETFramework and C #.

1. UDP client using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.Net.Sockets;using System.Net;namespace

I have studied the knowledge of KeyDown, KeyPress, and KeyUp. Let's explain it with the following questions:  1. What is the sequence of the three events?2. Does KeyUp be triggered after KeyDown is triggered?3. Definitions of three events4.

Jpg images directly generated in the program, with Chinese characters with edges. After some searches, I found the following article on msdn that controls the jpg quality coefficient. I tried it after modification, the effect is indeed much better

Use regular expressions to extract plain text in html. The Code is as follows: Using System. Text. RegularExpressions; Private string StripHT (string strHtml) // extract plain text from html{Regex regex = new Regex (" ", RegexOptions. IgnoreCase

We need to constantly read and write the database, so ExecuteNonQuery (), ExecuteReader () and ExecuteScalar () are what we need to use in database operations. Let's take a look at them one by one:ExecuteNonQuery (): This item allows us to use