C#

We know that the IP address is a 32bit address assigned to each host connected to the Internet. According to the TCP/IP protocol, IP addresses are expressed in binary format. Each IP address is 32 bits in length, and the bits are converted into four

As Operator The as operator is used for conversion between compatible reference types.For example: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->String s = someObject as string; If (s! = Null) { //

OracleConnection oc = new OracleConnection ("data source = osserver; User Id = *****; password = **");OracleCommand cmd = new OracleCommand ("insert into cym1.previusfile (filename, filecontent) values (: filename,: filecontent)", oc

Lou pig has the habit of reading other people's code when he is free. He has learned a lot of simple and efficient writing methods and the essence of thinking from many excellent and standardized codes. However, sometimes you may feel that some of

One advantage of using multiple threads in an application is that each thread can be executed asynchronously. For Windows applications, time-consuming tasks can be executed in the background, so that the application Windows and controls remain

In Total Commander, how does one align the Help menu on the right of the menu bar? How does one use C? Thank you for your guidance and finally found a solution. Code highlighting produced by Actipro CodeHighlighter

Regular expressions is a set of syntax matching rules. Various languages, such as Perl,. Net, and Java, have their own shared Regular Expression Libraries. In. Net, this class library is called Regex.To put it simply, Regex is an application class

When we were doing collection software It is very troublesome for some websites to analyze html text directly. When WinForm is used for programming There is a better way, of course, to analyze HtmlDocument However, this HtmlDoucment cannot be

Learning c # will be amazed at its delegate. In fact, delegate is not much mysterious. In terms of popularity, delegate is a typed function pointer, which is mainly used for callback. C ++ is familiar with function pointers. It is a variable that

I was confused when I first came into contact with C #. What is the performance difference between "Equals" and "=" when comparing strings? I believe that this problem has been confusing for many people, so let's discuss it together: Compare whether

First, let's look at a piece of C # code. After running the code, we can find that the main thread cannot catch exceptions thrown in the subthread through try {} catch.Code Code highlighting produced by Actipro CodeHighlighter

Recently, I was working on a project and found that the class provided by Mysql to C # operations is not very easy to use, so I tried to write a convenient Mysql Data Layer class. For example, a query was previously executed.Code public DataSet

1 using System;2 using System. Collections. Generic;3 using System. Text;4 using Microsoft. Office. Interop. Word;5 using System. Diagnostics;6 namespace OfficeManager7 {8 public class WordClass: IDisposable9 {10 # region Field11 private _

I. Factory Method mode The FactoryMethod mode is the class creation mode. It defines a factory interface for creating product objects and delays the actual creation to the subclass. The factory method mode is further abstract and promoted by the

In the dialog box, we often use the following types:1. The file dialog box (FileDialog) is commonly used in two ways:Open File Dialog Box (OpenFileDialog)SaveFileDialog)2. FontDialog)3. Color dialog box (ColorDialog)4. Print the Pre-Export Dialog

Public class rss{Public string title;Public string image_title;Public string image_link;Public string image_url;Public string description;Public string link;Public string language;Public string generator;Public string ttl;Public string

// Solution: in many cases, we do not know whether the object supports an interface. In this case, we can try to convert the object to an interface type.// In c #, we can use either of the following methods to obtain an object that supports an

/// /// Use Order By and Where filtering in DataTable/// Private void Bind (){// Construct a data sourceDataTable dt = new DataTable ();Dt. Columns. Add ("ID", typeof (System. String ));Dt. Columns. Add ("uName", typeof (System. String ));Dt.

Method 1: Open vs.net to create a console project. Enter the following program in the Main () method.String s = "abcdeabcdeabcde ";String [] sArray = s. Split ('C ');Foreach (string I in sArray)Console. WriteLine (I. ToString ());Output the

1. Create a WINDOWS Service Program Project WinSrv_A in VS. NET2003.2. Change the SERVICENAME attribute of SERVICE1.CS to the name of the service you want to create. In Service Manager> name, you can see your service name.3. Press F7 to enter the