C#

usingSystem;usingSystem.Collections.Generic;usingSystem.ComponentModel;usingSystem.Data;usingSystem.Drawing;usingSystem.IO;usingSystem.Linq;usingSystem.Net.Mail;usingSystem.Net.Sockets;usingSystem.Security.Cryptography;usingSystem.Text;usingSystem.Th

Three. String Patchwork StringBuilderStringBuilder sb= New StringBuilder ();Sb.append ("AAA");Sb.append ("bbbb");Console.WriteLine (Sb.tostring ());Four. Traversestring [] astring={"AAA", "BBB", "CCCC", "dddd"};foreach (Var a in

Basic steps for data binding:(1) First declare a class and its attributes(2) Initialize class assignment(3) Datacontext= the control object in C # code;(4) In the interface design, the control gives the properties of the property {Binding

C#MD5 CollectionusingSystem;usingSystem.Collections.Generic;usingSystem.Text;namespacemd5{ Public classUtil { Public stringGetMD5 (stringWenben) { Try{StringBuilder SB=NewStringBuilder (); foreach(byteBinchSystem.Security.Cryptography.MD5.

What is the difference between CheckStateChanged (check box selected status change event) and CheckedChanged (single-choice button selected status change event ?, Check box single choice What is the difference between CheckStateChanged (check box

C # DataSet performance best practices 1. Use ItemArray to assign values to DataRow in batches  When assigning values to all fields of DataRow, it is inefficient to assign values by column using field names. In this case, use batch field assignment

The foundation is the top priority ~ AutoMapper is the ing of existing target objects. Back to directory AutoMapper, you will not be unfamiliar. Uncle also mentioned in his previous articles that he once wrote extension methods to facilitate program

High-Performance File Cache key-value storage-Redis, key-valueredis1. High-Performance File Cache key-value storage-Memcached 2. ASP. NET HttpRuntime. Cache Usage Summary Note: The three blog posts can be read in combination for easy understanding

C # inheritance, The concept of inheritance is also used in programming. class inheritance exists in object-oriented programming, such as C ++ and C. Inheritance (with encapsulation and polymorphism) is one of the three main features (also known as

[C #] conversion (conversion) of RGB, CMYK, and HSB color representation ),[C #] conversion of RGB, CMYK, and HSB Color Representation 1. There are many ways to represent colors, such as RGB, CMYK, HSB, and Hex. 1. RGB: The color is composed of

By setting the AcceptButton attribute of the form, you can set the "accept" button of the form. If this design is used, every time you press Enter, it is equivalent to clicking this button and entering 1 using System; 2 using System. collections.

AutoMapper (4), automapperTotal returned directory Custom value Parsing Although AutoMapper covers a considerable number of target Member ing scenarios, there are still 1-5% target values to be parsed and processed. In many cases, custom value

AutoMapper (7), automapperReturns the replacement of Null values in the total directory. If the attribute value of the source type member chain is Null, the replacement of the Null value allows a replaceable value. The following two classes are

AutoMapper (5), automapperTotal returned directory Dynamic and ExpandoObject ing AutoMapper can map or map from a dynamic (dynamic) object to a dynamic object without any configuration. Namespace extends thautomapper {// defines a Person class

Multithreading in. NET (use semaphores for synchronization) and. net Multithreading The previous section describes how to use a lock for synchronization. This section describes how to use a semaphore for synchronization.Use EventWaitHandle

Basic Stream operations // Convert the stream into a file Public static void StreamToFile (Stream stream, string filepath) {byte [] bytes = StreamToBytes (stream); FileStream fileStream = new FileStream (filepath, FileMode. create); fileStream.

Design Mode: simple factory mode, design mode Factory This program is divided into three parts: business logic, page logic, factory of production objects I. business logic: 1. Operation class 1 using System; 2 using System. collections. generic; 3

C # Learning diary 28 --- indexer and reload Indexer The indexer allows an instance of a class or structure to index like an array. When you define an indexer for a class, the class will be like an array, you can use the array access character '[]'

C # Learning diary 27 ---- attributes Attributes can be named members of classes, structures, and interfaces. They provide flexible mechanisms to read, write, or calculate private attributes) the value of a field. The attribute can be viewed as a

C # use a Custom font (obtained from a file)During software development, especially when developing WinForm programs, some special fonts are inevitable to beautify the interface. However, after development, when the program is moved to another