C#

Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Using System. Text;Namespace CSTest{Class StrOp{/// /// Obtain the string length. A Chinese character is counted as 2 characters./// /// string /

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

To process images in a web application today, specify the image size and height. Google has a piece of information. I think this method is quite good. You can use it for reference. If your younger brother writes something wrong, please give us some

  The so-called pallet program, as its name implies, is a program like a tray. The so-called tray is the icon displayed in the program running, and the position of the tray is the toolbar of the Windows system. The pallet program is intuitive,

Using System;Using System. IO;Using System. Web;Using System. Text;Using System. Drawing;Using System. Drawing. Imaging;/// /// Generate an image using Cls_PicVcode/// Public class ValidateCode{/// /// This method is used to generate a random number

Preface In the past, on Microsoft's platform, a website was constructed, which requires the close combination of traditional database processing code, business logic layer code, front-end page processing, and interactive program processing, it can

Using System;Using System. Collections;Using System. Configuration;Using System. Data;Using System. Web;Using System. Web. Security;Using System. Web. SessionState;Namespace OnlineUser{Public class Global: System. Web. HttpApplication{Protected void

System. linq. the Enumerable class provides many extension methods. Generally, the type of the IEnumerable interface can be extended. For example, the OrderBy method is defined in the Enumerable class, this method is used to sort the sequence of

Rounding is a problem that occurs frequently in software development. I have used this operation in more than one project. If you search for c # On the internet, there will be many results, however, most of the content is about Microsoft's Math.

C # the SQL Float type is operated, and the data will contain many decimal places. Originally, the float type of C # is different from the float type of SQL./// /// Compare the data types in the database with those in C #/// /// /// Private string

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

Public class QueueManage{////// Send the object to the queue////// Queue name, because the queue name should not be changed in an application, it is best to write it in the configuration file./// The object to be sent outPublic static void SendQueue

First paste the code Private bool isMouseDown = false;Private Point mouseOffset; // records the coordinates of the mouse pointer. Private void PicBox_MouseDown (object sender, MouseEventArgs e){If (e. Button = MouseButtons. Left){MouseOffset. X = e.

1. DateTime numeric typeSystem. DateTime currentTime = new System. DateTime ();1.1 take the current year, month, day, hour, minute, secondCurrentTime = System. DateTime. Now;1.2 get current yearInt Year = currentTime. Year;1.3 take the current

Using System. Runtime. InteropServices; Introduce keyboard event Functions [DllImport ("user32.dll")]Public static extern void keybd_event (byte bVk, byte bScan, int dwFlags, int dwExtraInfo );Parameters: BVk: defines a virtual key code. The key

/// /// 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.

We are familiar with collection classes because they are often used in projects. Remember that whenever you encounter a key-value pair, you will think of HashTable. You can use it in the process, but you don't know it very well. At noon today, we

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

Private Point mouse_offset;Private void Control_MouseDown (object sender, System. Windows. Forms. MouseEventArgs e){Mouse_offset = new Point (-e. X,-e. Y );}Private void Control_MouseMove (object sender, System. Windows. Forms. MouseEventArgs e){If (