C#

Previous understanding of WinForm form display and form transfer values is not clear Recently did some WinForm development, the use of relevant knowledge to organize the following A.winform in the form displayThere are 2 ways to display the

When writing vb.net, it is not so easy to find the information in the ListView control that you want to thread on the form to be changed online. Because Microsoft's framework does not encourage online thread to directly access controls on the form.

This article describes the use of third-party ZKWeb.System.Drawing to implement CAPTCHA functionality under. Net Core. The system passed the test: Windows 8.1 64bitUbuntu Server 16.04 LTS 64bitFedora 64bitCentOS 7.2 64bit The following functions

Introduction to Adapter Mode: Transforms the interface of one class into another interface that the customer wants. The adapter mode makes it possible for those classes that would otherwise not work together because of incompatible interfaces to

Recently, GDI + this thing contact more, also did some simple examples, such as drawing board, imitation QQ and so on. The first contact this class, is because want to do the effect of imitation QQ. Skillfully very, learned how to do it after that.

Indexers are a special class member that allows objects to be accessed in an array-like manner, making the program look more intuitive and easier to write. 1, the definition of the indexer Class members in C # can be any type, including arrays and

Indexers are a special class member that allows objects to be accessed in an array-like manner, making the program look more intuitive and easier to write. 1, the definition of the indexer Class members in C # can be any type, including arrays and

Package util; The import Java.io.BufferedReader;Abnormal import java.io.IOException;Java.io.InputStream of imports;The import Java.io.InputStreamReader;The import Java.text.DateFormat;Import of Java.text.SimpleDateFormat;Java.util.ArrayList of

The pass value (by value) and the address (by reference) are ordinary pass-through parameter mode and the ref declaration mode, the method of communication requires the REF keyword decoration before use; Out is the output return pass, with ref the

Using jquery's $.ajax () makes it easy to invoke the ASP. Let's start with a simple example and warm up. 1. Method calls without parameters C # backend Code: Using System.Web.Services; [WebMethod] public static string Sayhi () { return

I. The concept of multithreading Windows is a multitasking system, and if you are using Windows 2000 and later, you can view the programs and processes that are running on the current system through Task Manager. What is a process? When a program

There are two different kinds of equality in C #: reference equality and value equality. The equality of values is generally understood in the sense of equality: it means that two objects contain the same value.Reference equality means that the

First look at the comparison between the basic value types in the CLR, first look at the code: int age1 =; int age2 =; Console.WriteLine ("int = = Int: {0}", Age1 = = Age2); Console.WriteLine ("int = =

Using System; Using System.Collections.Generic; Using System.Linq; Using System.Text; Using System.IO; Namespace Example { Class Program { static void Main (string[] args) { File opens the following code to open D:\wang.txt file, and writes

Zip compression and decompression can be achieved in. NET in a variety of ways: 1, using the System.IO.Packaging program; 2, the use of third-party class library; 3, through the System.IO.Compression namespace in the new ziparchive, the ZipFile

Two classes: (page data check Class) PageValidate.cs basic general. The code is as follows: Use the system;Use System.Text;The use of system.web;Use System.Web.UI.WebControls;Use System.Text.RegularExpressions;Namespaces commonly used{///Page data

C # XML processing in WebServices, 1. During enterprise system integration, a large number of fields are difficult to process, and can be quickly processed using Format. String SQL = @ "SELECT * FROM table WHERE TASKID = '" + taskid + "'";DataTable

C # operating Mongodb, Because MongoDb is cross-platform, it can be used for free, with high read/write efficiency, simple cluster construction, horizontal scaling, and other factors. I decided to study Mongodb. After reading the relevant

Design Mode: java The prototype may not be so popular. In other words, it can be called the copy mode. From the perspective of copying, there are full copies, and incomplete copies, as if Sun monkey's hair-blowing monkeys, but these monkeys are

Asynchronous and parallel ~ List is it thread-Safe ?, Asynchronous list Returned directory The question is a bit interesting. We all know that Dictionary is not a thread-safe type, and List is thread-safe? Today, my Uncle hasn't tested it before,