C#

Httpcode version /// ///merge cookies, cookie2 and Cookie1 merge update return string type cookie/// /// Old Cookie /// New Cookie /// Public stringUpdatecookie (stringCookie1,stringcookie2) {StringBuilder SB=

An exception of the "System. NullReferenceException" type occurs in App_Web_2tjb2nqh.dll, but not in user code (C # development ), An exception of the "System. NullReferenceException" type occurs in App_Web_2tjb2nqh.dll, but not in user code.

C # download an object through Http, /// /// Download an object through Http/// Public void HttpDownloadFile (string url, string path){// Set parametersHttpWebRequest request = WebRequest. Create (url) as HttpWebRequest;// Send the request and

C # Http request, String param = ""+ " "+ " "+ " 1348831860 "+ " "+ " "+ " 1234567890123456 "+ " "; // Encoding formatEncoding encoding = Encoding. GetEncoding ("UTF-8 ");Byte [] bs = encoding. GetBytes (param ); String text2 = string. Format

Inboxing and unboxing in C # (easy to understand ), Packing and unpacking are the operations to convert the value type and the reference type. Packing: implicitly converts a value type to an object type, or converts the value type to an interface

C # X-Forwarded-, At first, I found the information on the Internet: Add "X-Forwarded-For" to Headers ". I tried it and found it was ineffective. After thinking about it, I tried the following code and found it worked.   HttpWebRequest

C # extension of the reflection method, Reflection is a good helper for programmers. With reflection, you can write less than half of the Code. Below are some common reflection extension methods.   using System;using System.Collections.Generic;using

C # To implement QQ functions and related issues, For QQ, I must have known it for a long time, but I have never carefully observed the specific implementation steps of this operation. So here we will simply write down the steps in our memory: QQ or

In the FCL source code, the array type learning and sorting function Sort function analysis, fclsort Array is the base class of all arrays.ArrayList solves all the shortcomings of Array classes and can be dynamically scaled up. However, the type is

LED service summary, led Summary   Summary of simple programs A simple small program used to control the LED screen.LED Service Development Summary system running system function description: 1. ServerStrack service, which provides front-end access.

C # Summary of messy knowledge, -When we make an http request, if we want to return the returned format in a json string: httpClient. DefaultRequestHeaders. Add ("Accept", "application/json; odata = verbose "); HttpClient has a constructor. The

ArrayList Note: ArrayList 1. Using System; using System. collections; using System. collections. generic; class Program {static void Main (string [] args) {var al = new ArrayList {2, 3, true, "aa", true}; // al. clear (); var count = al. count;

Use a delegate and event to transmit parameters between two forms.Passing parameters between two forms using delegation and event Reference: http://blog.sina.com.cn/s/blog_49e3ed640102w0wm.htmlIn program development, we often transmit parameters

C # Small-end to large-end Little Endian to Big Endian, What are big ends and small ends? The definitions of Big-Endian and Little-Endian are as follows:1) Little-Endian is the low-byte emission at the low-address end of the memory, and the

Parent subclass conversion (two methods) and conversion Class Person {public void PersonSay () {Console. writeLine ("person") ;}} class Student: Person {public void StudentSay () {Console. writeLine ("Student") ;}} class Teacher: Person {public

C # how to add Word text and image hyperlinks, A hyperlink is a content link. By setting a hyperlink, you can connect objects to webpages and sites. The link target can be a webpage, image, email address, folder, or application. The link object can

You can use Windows Services to regularly execute one of the three methods, windows three methods Method 1: Use the System. Timers. Timer Public partial class Service1: ServiceBase {private UnitOfWork unitOfWork; private System. timers. timer timer1;

C # File operations, FileClass is a static class, mainly used to provide some function libraries.The static objects class provides many static methods that support basic file operations, including creating, copying, moving, deleting, and opening a

Thread security collection class in C, All the set types of C # Have the Synchronized static method and the SyncRoot instance method. For ArrayList and Hashtable collection classes, it is best to use its built-in attribute SyncRoot to achieve thread

C # development portals and applications (48 ), In many of our frameworks or project applications, caching can improve the response speed of the program to a certain extent and reduce the load on the server. Therefore, we have considered introducing