C#

Introduction C # The Network Programming series will briefly describe the basic knowledge of network programming. Due to my limited skill in this area, I can only provide some preliminary introductory knowledge, I hope to provide some help to my

1. array Overview An array is a reference type, which means that the memory of the array is allocated to the managed stack, and we maintain its pointer on the stack rather than the real array. Next, we will analyze the elements of the array. The

Dotnet. frameword provides a special random generation class System. random, a computer cannot generate completely Random numbers. The numbers it generates are called pseudo-Random numbers. They are selected from a group of finite numbers with the

Static Modifier   Declares that a class member belongs to a class rather than an instance of the class.  StaticModifier indicates that the member belongs to the instance of the class rather than the class. Even if multiple instances of the class

In our programs, there are often some time-consuming operations. To ensure the user experience, we can make the user interface respond in a timely manner. We generally use multi-threaded operations to make time-consuming operationsThe background is

Rotating an image from any angle.   The RotateTransform () method provided by the Graphics class is used to rotate images at any angle. The Code is as follows: Private void button#click (object sender, EventArgs e){// Rotate the image at any

I. Interface The interface is a common tool in C #. I will not talk about the concept or anything. Here are some notes: 1. The interface can only contain declarations of functions, attributes, and events: Code highlighting produced by Actipro

1. Regular ExpressionA. Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Using System; Using System. Text. RegularExpressions; Public bool IsNumber (String strNumber) { Regex objNotNumberPattern =

Boxing and unboxing are new concepts proposed by. NET!All types of. NET are inherited by the base class System. Object, including the most common basic types: int, byte, short, bool, etc., that is, all objects are objects. If you declare that these

Recently, when I was writing a small program, I encountered the following requirements: If you know a set of web page URLs and want to get the html of each web page, you actually want to use the WebBrowser in the loop statement to load each web page

The following is what I used in my previous project. At that time, I used custom features to include configurable features when exporting an excel report. The specific excel operation is not the focus of this article, and this article will not

The cache is mainly used to speed up Data Reading. Because there is a traffic bottleneck between the server and the application client, when reading large data volumes, cache is used to serve the client directly, which can reduce the data

1 private Boolean dbUpdate ()2 {3 string strSql = "select ProductsSpecID, ProductsSpec, ProductsSpecUnit, ProductsID from tbl_product_detail_master ";4 System. Data. DataTable dtUpdate = new System. Data. DataTable ();5 dtUpdate = this. dbconn

A few days ago, when I write a value that is automatically read from XML and injected into object attributes, I do not want to write the original data of the int type or the string type for convenience, but when read from XML, it is of the string

In winform:// Storage Private void MemoryImage (){StringSQL= "";// String conn = "Provider = SQLNCLI; DaTa Source = 192.168.0.9, 1433; Database = WebDown; UID = sa; PWD = 111122 ;"; Stream MS;Byte [] picbyte;OpenFileDialog fdSelectPic = new

1. Optional parametersYou can set a default value for the method parameters, as shown in the following code: class Program {static void Main (string [] args) {Show (); Show ("cary"); Console. readLine ();} public static void Show (string msg = "")

This. Page. Title = "artist search-Gallery ";//KeywordHtmlMeta keywords = new HtmlMeta ();Keywords. Name = "keywords ";Keywords. Content = "Gallery network, artist, Chinese painting, art, art, oil painting, calligraphy, contemporary art, sculpture,

// Obtain the CPU serial numberPrivate string GetCpuID (){Try{// Obtain the CPU serial number codeString cpuInfo = ""; // cpu serial numberManagementClass mc = new ManagementClass ("Win32_Processor ");ManagementObjectCollection moc = mc.

Sometimes you need to run other programs in the program and obtain output results for further processing .. NET Framework has provided corresponding classes and methods, and we can easily achieve our goal. The following example is used previously.

1. Create a C # project Create an EXE project in WinForm or command line format. Add references to System. ServiceProcess. dll and System. Configuration. Install. dll.  2. Create a service class Add a class that inherits the System. ServiceProcess.