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

Introduction If you have read the delegate and event text in aspx.com/dotnet/csharp/csharp_20091008_768.html "target = _ self> C #, I think you have a basic understanding of the Delegate and event. However, there are still many issues that are far

About the mechanism of string resident, those who know it will surely think it is very simple, but I believe a lot of people will be confused about it. An interesting Sample is provided before you begin to deploy the string:Code Snip:Static void

// Introduce API functions[DllImportAttribute ("user32.dll")]Public static extern int FindWindow (string ClassName, string WindowName );[DllImport ("user32.dll")]Public static extern int ShowWindow (int handle, int cmdShow );[DllImport ("winmm. dll",

The DirectShow component is in the Quartz. in the dll dynamic library, to make C # code reference COM objects and interfaces, you must convert the COM-type library.. NET Framework metadata to effectively create a managed packaging that can be called

Using System;Using System. Configuration;Using System. Data;Using System. Data. OracleClient;Using System. Collections;Using System. Web;Namespace Game. DBUtility{ /// /// A helper class used to execute queries against an Oracle database/// A class

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 =

Recently, we have collected some extension methods based on IEnumerable . It brings us a lot of convenience and is sometimes practical. There are Alternate, Append, Prepend, Distinct, and Contains. For more information, see UnitTest. Code:/// ///

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

Code: MySqlConnection con = null;MySqlCommand cmd = null;String nameStr = "Sample value passed "";Con = new MySqlConnection ("server = localhost; database = db_name; uid = user; pwd = password; pooling = false ;");Con. Open ();Cmd = new MySqlCommand

Combine and arrange the element child sets in the List using recursion. The Code is as follows:Using System; using System. collections. generic; using System. linq; using System. text; using System. collections; namespace ConsoleApplication2 {class

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

1. Special attributes in asp. Net:Get server computer name: page. server. manchinenameGet user information: page. userObtain the client computer name: page. request. userhostnameObtain the Client ip Address: page. request. userhostaddress2. General

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

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 // ============================================== ========================================================== =2 // Microsoft Data Access Application Block for. NET3 // http://msdn.microsoft.com/library/en-us/dnbda/html/daab-rm.asp4 //5 //

LockThe keyword marks the statement block as a critical section by obtaining the mutex lock of a given object, executing the statement, and releasing the lock. The statement format is as follows:   Object thisLock = new Object();lock (thisLock){ /

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.

Dynamic DLL loading requires the use of Windows API functions: LoadLibrary, GetProcAddress, and FreeLibrary. We can use these three functions in C # using DllImport.[DllImport ("Kernel32")]Public static extern int GetProcAddress (int handle, String