C#

Using System;Using System. Collections;Using System. ComponentModel;Using System. Data;Using System. Diagnostics;Using System. ServiceProcess;Using System. IO;Using System. Runtime. InteropServices;Namespace FileMonitorService{Public class Service1:

/// /// Whether it is a date string/// /// date string () /// Public static bool IsDate (string StrSource){Return Regex. IsMatch (StrSource, @ "^ (1 [6-9] | [2-9] d) d {2})-(0? [1, 13578] | 1 [02])-(0? [1-9] | [12] d | 3 [01]) | (1 [6-9] | [2-9] d)

Method 1: The most common practice on the Internet is to use the RowPostPaint event of the DataGridView rowto draw a row number in RowHeaderCell:  RowPostPaint Code highlighting produced by Actipro CodeHighlighter

Asynchronous delegation provides the ability to call synchronous Methods asynchronously. When a delegate is synchronously called, the "Invoke" method calls the target method directly to the current thread. If the compiler supports asynchronous

1. Create an installation and deployment projectOpen VS, click "Create Project", select "other project type"> "installation and deployment"> "Installation Wizard" (the same is true for the installation project), and click "OK.2 Installation

1. Add and introduce the namespace System. Net. Mail.   2. Component code: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->/// /// Mail sending component /// Public class EmailUtils { Static

The most common attributes include ChartAreas: adds multiple drawing areas. Each drawing area contains independent chart groups and data sources. It is used when multiple chart types are incompatible in one drawing area. AlignmentOrientation:

In my understanding, an interface is used to identify the type of a class. For example, if there is an Interface: an animal, whether it is the class: cat, dog, ox, etc, As long as it inherits the animal interface, it is necessary to implement the

Datatable to string Public static string DataTableToString (DataTable dt){//! @ &, # $ %, ^ & * Is the concatenation string of the field// To prevent the connection string from being present in the able data, write the concatenated string as a

Private void GetFileList (string strCurDir){String FileName, FileExt;/// File SizeLong FileSize;/// Last modification time;DateTime FileModify;/// The default directory of the current page during initializationStrCurDir = Server. MapPath (strCurDir )

Original Image: ISINBAEVA   I. Negative EffectsPrinciple: The GetPixel method obtains the value of each pixel, and then uses the SetPixel method to set the reversed color value to the corresponding vertex.: Code implementation: Negative Film Effect

Rounding is a problem that occurs frequently in software development. I have used this operation in more than one project. If you search for c # On the internet, there will be many results, however, most of the content is about Microsoft's Math.

1 using System;2 using System. Collections. Generic;3 using System. Text;45 namespace BubbleSort6 {7 class Program8 {9 static void Main (string [] args)10 {11 TestArray nums = new TestArray (10 );12 # region initialization Array13 Random rnd = new

Recently, I am working on a graphic image project. I don't know why the manager chose the C # language, but I still need to do it.   During this period, a difficult problem occurs as follows: Delete the specified area of the current layer to display

It is very convenient to use C # To create a thread. A Void function can create its own thread application with a statement. See the following example:  Simple thread Creation Code highlighting produced by Actipro CodeHighlighter

Using System; Using System. Collections. Generic; Using System. Text; Namespace ConsoleApplication1 { Class Person { Private string name; Public string Name { Get {return name ;} Set {name = value ;} }   Public Person (string name) { This. name =

Background External sorting refers to the sorting of large files, that is, the records to be sorted are stored in external storage, and files to be sorted cannot be loaded into memory at a time, data exchange between memory and external memory is

Class that implements the IEnumerable interface. It supports the foreach loop to traverse the collection elements of objects.IEnumerable:IEnumerator GetEnumerator () returns the number of enumerations that can access the set

Generally, there are four methods to implement serial communication in C:First, the MSCOMM control is the simplest and most convenient method. It is difficult to control the functions. At the same time, this control is not included in the system, so

Below is a registry operation class written in C #. You are welcome to make a picture! 1. Static domain of the registry key Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->1 /// 2 // static domain