C#

Public class CoverExcellToImage{Private static string SAVEEXCELJPG = @ "c:/temp/10902.16.jpg ";Private static readonly string [] ArrRang = new string [] {"A", "B", "C", "D", "E", "F ", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P ", "Q", "R", "S",

// Intercept stringPublic static string getStr (string s, int l){String temp = s;If (Regex. Replace (temp, "[\ u4e00-\ u9fa5]", "zz", RegexOptions. IgnoreCase). Length {Return temp;}For (int I = temp. Length; I> = 0; I --){Temp = temp. Substring (0,

// Match the titleString reg = " (? [\ s \ S]). *?) ";// Match tiitle and value// String reg = " (? [\ s \ S]). *?) ([^ (? [\ s \ S]. *?) ";// And so on Regex r = new Regex (reg, RegexOptions. IgnoreCase | RegexOptions. Singleline

After the program is opened, the form is gradually displayed from transparent to opaque.Implementation Method:1. Add a Timer control (named fadeTimer in this example), and then add the relevant code in FadeTimer_Tick to its Tick event. That's

We can see virtual in many OOP languages such as C ++ and Java, and C # is no exception as a fully object-oriented language. From the perspective of C # program compilation, what is the difference between a virtual function and other common

In C #, Dictionary provides quick part-time-based element search. You can use it when you have many elements. It is included in the System. Collections. Generic namespace. Before using it, you must declare its key type and value type. Detailed

In this example, create the C # application HelloWorld !, Create a notepad file and enter the code.Using System;Namespace HelloWorld{Class Hello{Static void Main (){Console. WriteLine ("Hello World! ");Console. WriteLine ("Press any key to exit

# Region filters rows with duplicate fields in the DataTable. /// /// Filter the rows with duplicate fields in the DataTable./// /// /// /// Public DataTable SelectDistinctByField (DataTable dt, string FieldName){DataTable returnDt = new

1. decompression method Reprinted from the http://www.bkjia.com/kf/201204/128704.html "C#decompress The. ZIP file. A lot of methods are found on the Internet, using System. IO. compression. GZipStream uses the J # library function and the Java-based

Hexadecimal xor FFFF, and then convert it to hexadecimal, for example, (FEFA Xor FFFF) + 1-> 10 hexadecimal/10 (FEFA Xor FFFF = 105 (hexadecimal) + 1 = 106 (hexadecimal) = 262 (10 hexadecimal)/10 = 26.2 String s1 = 'fefa ';Int dec1 = Convert. ToInt3

Using System;Using System. Collections. Generic;Using System. Linq;Using System. Text;Using System. Windows. Forms;Using DocumentFormat. OpenXml. Packaging;Using DocumentFormat. OpenXml. Wordprocessing;Using System. IO; Namespace ConsoleApplication15

Private void btnSelectImage_Click (object sender, EventArgs e){// Read the image to be stored as a data streamOpenFileDialog1.Filter = "* jpg | * bmp ";If (DialogResult. OK = openFileDialog1.ShowDialog ()){ Foreach (string file in

C # timeout may occur during reading and writing. Microsoft provides two attributes for us to set the timeout value. The read timeout value is initially set to 500 milliseconds in Win32 communication API. This attribute allows you to set this value.

XML Serializable Generic DictionaryXML Serializable Generic DictionaryFor some reason, the generic Dictionary in. net 2.0 is not XML serializable. The following code snippet is a xml serializable generic dictionary. The dictionary is serialable by

I am always dizzy with date operations ~~~~ If you need this function, you can find the SDK without the following methods.PlanDate = Convert. toDateTime (createDate. year. toString ("yyyy") + "-" + month. toString ("MM") + "-" + day. toString ("dd ")

Private void CreateLink (string linkName, string ExeName, string Description){WshShell shell = new WshShell ();IWshShortcut shortcut = (IWshShortcut) shell. CreateShortcut (linkName );Export cut. TargetPath = ExeName;Export cut. WorkingDirectory =

Using System;Using System. Collections. Generic;Using System. Linq;Using System. Text;Using System. Reflection;Using System. IO; Namespace ConsoleApplication1{[System. AttributeUsage (AttributeTargets. All, AllowMultiple = false)]Public class

The following call functions are all functions used in the project. Therefore, you do not need to modify the c ++ functions one by one to the functions supported by c # In msdn. [Csharp]// Create a file ing[DllImport ("kernel32.dll", EntryPoint =

Today, I want to talk to you about the performance optimization of C #. Of course, I will not talk about the basic principles here. It is assumed that you are very proficient, this article is about programs that require several milliseconds. For

: This (...)• One constructor can call another constructor.Struct ColouredPoint{Public ColouredPoint (int x, int y): This (x, y, Colour. Red){} Public ColouredPoint (int x, int y, Colour c){...}...Private int x, y; www.2cto.comPrivate Colour