C#

Weak references, java weak references All the examples obtained after the actual situation are implicit references, but sometimes the large contrast to some typical images appears in the performance test, we do not want to initiate complex

C # How to Implement Multi-Inheritance I recently saw a post about how to implement multi-inheritance in C. I believe that there are not many people involved in c # (cainiao like me). At first glance, I think it is ridiculous. c # certainly cannot

C # learning notes for extensible programming (4): witness a miraculous momentThe BankInterface code is as follows: make a simple example and test it by writing several methods: copy the code using System; using System. collections. generic; using

C # example: 5. net classic examples (Form and interface design ), Instance 001 menu with historical information Instance description When developing the drawing management software, you must record the files or drawings recently opened by the user

Use FileSystemWatcher to monitor folders and files,Introduction This week, I focused on a local file search project developed by my colleagues. When a client adds shared files, I mainly use the FileSystemWatcher monitoring file and send messages to

C #6 and VB 12 will be added to the pattern match, Another concept originated from functional programming languages is added to the C # and VB camps, which are known as Pattern Matching. At first glance, pattern matching works like a switch/select

The query results of Linq may follow 2 °, 2 °, 2 ²,... growth calculation, and the query results of linq. static void Main(string[] args) { int[] array = new int[] { 102, 12, 23, 412, 22, 14, 45, 65, 33 }; var

DataTable to List common class, datatablemodel /// // DataTable to List generic class [entity conversion helper class] /// public class ModelConvertHelper where T: new () {public static IList ConvertToModel (DataTable dt) {// defines the set

C # connect to the database by writing SqlHelper Static class SqlHelper {private static string connStr = ConfigurationManager. connectionStrings ["dbConStr"]. connectionString; // encapsulation method principle: Put unchanged changes in the method

What you must know about performance optimization? Recently, some customers reported that the system imported EXECL for data processing time-out. I was the first to respond. It was impossible. I obviously did performance optimization. How can I

C # convert Chinese characters to Unicode encoding, It is mainly used to convert Chinese characters into Unicoude encoding when generating json format to prevent page garbled characters. 　　protected string GetUnicode(string text) { string

[C #] Attribute ), If a programmer is a cat, which one are you a cat? This is a technology that I have always liked. It is neither difficult nor difficult to understand. It works with reflection. You can't think of anything you can't do (exaggerated

What about Linq? Today, I suddenly wondered if I would continue to loop the remaining data when the conditions are met during the loop traversal of linq. I did a small experiment. First look at the code This is the test class.Public class TestLinq

Are you a senior programmer? Let's challenge it !, Challenge from programmers Basic questions: What is the name of the implicit parameter for the set method that passes in an attribute?Value. Its type is the same as that of its attribute. How to

Summary @ usage in C, Usage in a string1. Everyone on Earth knows that string constants in C # can start with @. This advantage is that escape sequences are not processed and output as they are, that is to say, we can easily coding without adding \ (

C # string details, The most commonly used method is string, but sometimes some problems are easy to make mistakes without careful consideration. Today I will summarize the usage of string. 1. string is a reference type. We usually compare the

Write your own Socket framework (III), socket framework After the communication is completed, the application layer receives the byte [] thrown by the Socket. In this case, this data is unfriendly for developers who actually write logic, we need to

C # How to start an external program, 1. Start an external program without waiting for it to exit. 2. Start the external program and wait for it to exit. 3. Start an external program and wait for it to exit. 4. Start an external program and monitor

Socket implements simple Web server and socketweb Server The previous blog introduced how to use socket to access the web server. There are two key points: 1) familiar with Socket programming; 2) be familiar with HTTP. In the previous article, we

Use C # To insert the header and footer in word, // Insert footer [Csharp]View plaincopyprint? Public void InsertFooter (string footer) { If (ActiveWindow. ActivePane. View. Type = WdViewType. wdNormalView | ActiveWindow. ActivePane. View. Type