C#

1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.Linq;4 usingSystem.Text;5 usingSystem.Threading.Tasks;6 usingSystem.Data.SqlClient;7 usingSystem.Data;8 9 namespaceMyschool.dalTen { One Public classDBHelper A { -

1. Out variable (out variables)Before we used out variables that had to be declared before use, C # 7.0 gave us a more concise syntax of "inline declaration when used." As shown below:1 var input = ReadLine (); 2 if (int). TryParse (input, out

This article mainly introduces the DES encryption and decryption in ASP. MD5 encryption Helper Class instance code, very good, with reference value, the need for friends can refer to the following public class Trialhelper {//default key vector

What are MVC,MVP and MVVM respectively? MVC (Model-view-controller) is one of the most common software architectures and is widely used in the industry. It's easy to understand, but it's not easy to tell the difference between the derived MVP and

This article mainly introduces the C # operation string Method Summary instance code, the need for friends can refer to the following Needless to say, the specific code is described as follows: Staticvoid Main (string[] args) {string s = ""; (

This article mainly introduced the ASP. NET MVC Dynamic Compiler Generation controller method, has certain reference value, interested can understand When doing the site management system, sometimes we need to dynamically generate some channels

Contact C # language only a few days time, want to write what tall on the deep Research article, estimate is full of speculation and some illogical inference. As of now, from the language primer (most programmers of the introductory ceremony-output "

This article is mainly for you to introduce in detail the C # inverter and covariance related data, with a certain reference value, interested in small partners can refer to More delegate delegate and lambda expressions are used in this article,

AutoCAD.net supports background thread-Socket communication and autocad.net-socketRecently, due to the needs of the company's projects, CAD serves as the server to run in the server, waiting for the client to remotely send the command to execute the

C # basic notes (16th days ), 1. Process Review// Open the application through the processProcess. Start ("calc ");Process. Start ("mspaint ");Process. Start ("notepad ");Process. Start ("iexplore", "http://www.baidu.com "); // Open a specified file

C # Three exciting new features of 8.0, C # is released in 2000. So far, seven versions have been officially released. Each version contains many exciting new features and feature updates. At the same time, C # versions are released in the same

Parallel. For parallel algorithm, Parallel. for Algorithm I have seen the usage of Parallel before, and I think it is very advanced and difficult. Today I have made some research and found that it is still very easy. . NET Framework 4.0 is newly

The shallow solution of the Expression Tree in C, The expression tree can be said to be one of the core of Linq. Why is it one of the core of Linq? Because the expression tree makes c # no longer only be compiled into IL, we can use c # to generate

Log framework NLog, log framework nlog Here we will compare it with other products according to the old rules: Currently, there are two old log frameworks on the. net platform: Log4net and NLog. We will compare the two frameworks.Log4net Log4net is

How to correctly use asynchronous programming technology and asynchronous programming technology1. What is synchronous and asynchronous? SynchronizationSynchronization refers to coordination between events in a system, and consistency and

Problems with binding Baidu map SDK to xamarin. android: xamarin. androidsdk In the xamarin. android binding project, bind the LBS map SDK of Baidu map, refer to the https://developer.xamarin.com/guides/android/advanced_topics/binding-a-java-library/

Record the asynchronous understanding of. net and the asynchronous understanding of. net. Recently I have been studying. net framwork is asynchronous. I have read a lot of blogs and learned a lot. But on MSDN, I am not very familiar with the

Implement Multi-task Batch Processing Based on the SmartThreadPool technology,I. Introduction to multi-thread technology application scenarios This article also shares with you the real business scenarios that arms has encountered in its actual work.

Log4net writes data to the SQL database, log4netsql Recently, some user behaviors need to be added to the database, so I thought of using log4net. If there are other good solutions, you can correct me. Let's take a look at the configuration file.

IT foreigners in China issue 1: programming masters who visited China for the first time, Anders, father of C, When he saw Anders, he was focused on listening to domestic developers' questions. A pair of far-sighted glasses bent over the head, and