C#

First, reference the COM component. Microsoft Shell Controls And Automation Note that Set the DLL attribute Embed Interop Type to False. Otherwise, the interoperability type is abnormal.   The Code is as follows: ShellClass sh = new ShellClass

Definition: objects can be collected together when they are created, managed and operated as a group, and one of them can be referenced separately when needed. 1: simple cluster-array Traverse Arrays For (int I = 0; I If (studentBody [I]! = Null) {/

An array is a data structure that contains several variables. These variables can be accessed through computing indexes. The elements of the array have the same type.The array has a "rank ". The rank of an array is also called the dimension of an

Recently, I uploaded a course in the smart. Net job class to the Information Technology University. At noon, a teacher from the Information Technology University asked me about the regular expression. The question is roughly described as

When you debug the original program these two days, the following error occurs when calling the WCF Service:{"Remote server return error: (500) internal server error. "}The error message is as follows:The content type of the Response Message,

An interface can be regarded as a "pure" abstract class, and all its methods are abstract methods.Two interface implementation methods: Implicit interface implementation and explicit interface implementation There are two main forms of polymorphism

Previous Article Workshop. The WhenAll auxiliary method summarizes a series of task objects. Once an error occurs, an "one of them" exception is thrown. So what is the exception? What if we want to handle all exceptions? This time, we will discuss

Like C, C # has some pre-processor commands. For example, # if # end if, # define, and so on, these commands do not convert to some commands in the executable code, but play a role in the compilation process.The following is a brief introduction:1. #

/*----------------------------------------------------------File Name: FormHelper. cs Using System;Using System. Runtime. InteropServices;Using System. Windows. Forms; Namespace Splash. Windows. Forms{/// /// Form extension:/// 1. The child form is

/// /// Perceive the hash algorithm/// Public class ImageComparer{/// /// Obtain the Hashcode of the image/// /// /// Public static string GetImageHashCode (string imageName){Int width = 8;Int height = 8; // Step 1// Reduce the image size to 8x8,

1. Adding the [Serializable] attribute to the class indicates that the class can be serialized.[Csharp][Serializable]Public class Userinfo{Public string uname {get; set ;}Public string upass {get; set ;}Public int IsSave {get; set ;}} 2. serialize

Use the SystemInformation class [Csharp]// The size of the Work Field on the current screen except the taskbarString currentScreenSize_OutTaskBar = SystemInformation. WorkingArea. Width. ToString () + "," + SystemInformation. WorkingArea. Height.

1. C # connect to AccessProgram code: Using System. Data;Using System. Data. OleDb;.. String strConnection = "Provider = Microsoft. Jet. OleDb.4.0 ;";StrConnection + = @ "Data Source = C: aizhigala. mdb "; OleDbConnection objConnection = new

1. Inherit from MonoBehaviourInherited from MonoBehaviour All behaviour scripts must inherit from MonoBehaviour (directly or indirectly ). this happens automatically in Javascript, but must be explicitly inside C # or Boo scripts. if you create your

[Csharp]Using System;Using System. Linq; Namespace ConsoleApplication1{Class Program{Public class S{Public int Year;Public int Month;Public int Day;}Static void Main (string [] args){Var m = new [] {New S {Year = 2000, Month = 1, Day = 10 },New S

There are many methods to determine whether a program is running so that the program can run only one instance. The following two methods are recorded,Method 1: thread mutexStatic class Program{Private static System. Threading. Mutex mutex; /// ///

C # The principle of shared memory operations is the same as that of c ++ shared memory operations, but c # may seem a bit complicated. Now we will record the read/write shared memory encapsulation functions encapsulated yesterday. On the one hand,

In fact, after using C # for so many years, I may encounter some unpleasant design defects from time to time. These defects are mostly limited. Although they are harmless, they are easy to avoid. However, once these situations are met, they will

Using System; Using System. Collections. Generic;Using System. Linq;Using System. Text;Using System. Net;Using System. Net. Sockets; Understanding Scoket protocol in namespace{Class synchronous socket{Static void Main (string [] args){///

[Csharp]Using System;Using System. Collections. Generic;Using System. Text;Using System. Windows. Forms;Using System. ComponentModel; Namespace WindowsFormsApplication1.Common{/// /// Description: DateTimePicker control v1.2, which can be null.///