C # import XLS data to the database

The implementation code is as follows: Using System;Using System. Collections;Using System. Configuration;Using System. Data;Using System. Web;Using System. Web. Security;Using System. Web. UI;Using System. Web. UI. HtmlControls;Using System. Web.

Skip List, C # implementation

Review the data structure, and implement the C # version Skip List.  Skip List Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Namespace Ln. SkipList { /// /// The values of list is ascend. ///

Brief Introduction to DevExpressReport

  Brief Introduction to DevExpress Report DevExpress Report is an important component of the DevExpress package. It helps us easily design and print beautiful reports and reports. The same DevExpress Report can be designed to be used in

C # problems encountered in serial programming and Solutions

Recently, serial communication programming is involved in the project. When my teammates are working on this module, they encounter a problem that many people may encounter, that is, receiving data conflicts or loss. It took nearly two hours for my

C # Deep copy and light copy

The difference between the shallow copy and the deep copy is that the processing value type is the same as the processing reference type. When the value type is processed, both of the two copy modes directly allocate a new memory area and copy the

Chinese and English string truncation method

Public static string Intercept (string input, int p) {Encoding encode = Encoding. getEncoding ("gb2312"); byte [] byteArr = encode. getBytes (input); if (byteArr. length Int m = 0, n = 0; foreach (byte B in byteArr) {if (n> = p) break; if (B> 127) m

C # execute the batch processing command

Using System. Diagnostics; Using System. IO;   Private void btnRun_Click (object sender, EventArgs e){TxtResult. Text = "";ProcessCommand ("Ping.exe", this.txt Address. Text );ProcessCommand ("Ping.exe", this.txt Address. Text );}   Public void

C # insert sorting (data structure and algorithm)

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

Methods for implementing serial communication in c #

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

C # Hashtable of a set

1. HashTable Definition System. collections. the Hashtable class indicates a set of key/value pairs. These key/value pairs are organized based on the hash code of the key. Each element is a key/value pair stored in the DictionaryEntry object. The

Code control compile C # Program

Two days ago, I looked at MSDN and found an interesting feature. I can directly use code to control the compilation of C # programs. There is such a thing that it would be easier for some programs to implement the function of instantly modifying the

Solution to the reflection method to close the form and report an error

When you launch a function, if the function contains Form. Close () for the current Form, an error may be reported at Application. Run. For this reason, I found the problem during disassembly tracking. The original function is as follows:Code Code

C # add, delete, modify, and query XML

XML is not used for a long time. Recently, in the Silverlight project, you need to access some C ++ Dll through Web Service.Use XML to pass data. Let's just review the XML operations.Meteorology Code highlighting produced by Actipro CodeHighlighter (

Detailed description of access to private members in C #

First, it is not a good practice to access a private member of a class. We all know that Private Members cannot be accessed externally. A class contains many private members, such as private fields, private attributes, and private methods. For

Comparison between MFC, Winform, and WPF

  The local code generated by MFC is naturally fast. However, the message loop slows down the display speed on the interface.Winform encapsulates win32 APIs for multiple P/invoke operations (most of which are encapsulated using p/invoke operations),

C # Read and Write files

To read an object, follow these steps: 1. Declare and use the OpenRead of File to instantiate a File stream object, as shown below: 2. Prepare a byte array for storing the file content. fs. Length will get the actual size of the file, as shown below:

C # how to connect to an SQL Server database instance

C # connect to the SQL Server codeUsing System. Data;Using System. Data. SqlClient;//...String strConnection = "user id = sa; password = ;";StrConnection = "initial catalog = Northwind; Server = YourSQLServer ;";StrConnection = "Connect Timeout = 30

C # play audio files

First, apply wmp. dll under C: WINDOWSsystem32 to the project; WMPLib. WindowsMediaPlayerClass player = new WMPLib. WindowsMediaPlayerClass ();Player. URL = @ "F: ding.wav ";Player. uiMode = "None ";Player. settings. volume = 100;Player. settings.

Implementation of generic linked list in C #

Using System;Using System. Collections. Generic;Using System. Linq;Using System. Text;Using System. Collections; Namespace generic{// Implementation of simple linked list, one-way (generic)Class generic class{Public static void Main (){Shortlist

Read and modify the App. config file

1. Add the app. config file to the project: Right-click the project name and select "add"> "Add new item". In the displayed "Add new item" dialog box, select "add application configuration file "; if the project has no configuration file before, the

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