C#

Like Java, C # provides a rich set of class libraries, methods, and events for developers to use. C # also introduces GDI +, which evolved from GDI, which has more powerful functions than GDI and simplifies programming for programmers. Therefore,

The returned value of the Hashtable type is suddenly used. I suddenly thought of ArryList. As a comparison, I will summarize it.1. HashTabelIn. NET Framework, Hashtable isSystem. CollectionsProvided by the namespaceCollection object,It is also a

In fact, the difference between the two is to analyze the differences between the override and new keywords in the control class version. First, I will first list some official information related to this on the local MSDN 2008: "Override (C #

Implement MapX slave database in C # Read data There are two problems in creating a new layer: 1. MapX reads data from the database to form a new layer; 2. Convert the DataTable to the Recordset of ADO. The second problem is caused by the

Set the Multiline attribute of TextBox in winform to true, input several characters and press enter, save it to the database, read it from the database, and assign the value to TextBox. The linefeed is lost. Replace "" with "" In the read string to

The work done in the company is complicated, and there are often some corporate website page files that need to be modified. Some modifications involve all htm page files with the same content, but the number of files reaches several thousand. What

Managed code: the code that is executed by the Common Language Runtime Library environment (rather than directly by the operating system. Managed code applications can obtain the public Language Runtime library service, such as automaticGarbage

It is also relatively simple to search for the location where pattern appears in the byte array of data. Of course, this function can be expanded here, for example, to ignore case sensitivity and prevent exceptions. Public static List indexOf (byte

In the case of multiple threads, other threads cannot directly call controls on the main thread. They can only call controls on the main thread through proxies.1. Define Delegation// Delegate statement for executing the task (solving the long task

I hope this article will help those who need to generate thumbnails frequently! At present, the Internet has more than 4000 types of products, with more than 20 million products on sale, of which the image volume has been 8 GB so far.Currently, our

Class Public string GetConStr (){Try{ XmlDocument xmlDoc = new XmlDocument ();XmlDoc. Load (Server. MapPath ("App_Data \ config. xml "));XmlNode node1 = xmlDoc. SelectSingleNode ("configuration/ConnectionStrings1/DataSource ");XmlNode node2 = xmlDoc.

The problem is that the CPU curve in the task manager is displayed in a straight line with a balance of 50%, Then write another program to display the CPU curve in the form of a sine curve, Haha, it's interesting. I was fascinated by last night's

1. Create a "virtual canvas" in the memory ": Bitmap bmp = new Bitmap (600,600 ); 2. Obtain Graphics reference of the memory canvas: Graphics g = Graphics. FromImage (bmp ); 3. Drawing on the memory canvas: G. FillEllipse (brush, I * 10, j * 10,

This article is based on the book Accelarated C #2008. Using System; Using System. Collections. Generic; Public interface IShape { Double Area { Get; } } Public class Circle: Ishape { Public Circle (double radius) { This. radius = radius; } Public

The implementation code is as follows: Public class BiultReportForm{/// /// Word Application Object///Private Microsoft. Office. Interop. Word. Application _ wordApplication;/// /// Word file object///Private Microsoft. Office. Interop. Word.

A previously written GZip decompression example is now available for you to share with us. If you are interested, please download it and check it out. please correct me if you have any questions. The details are not described in detail, but

Before getting started, I need to declare that these keywords are more familiar to programmers who prefer the underlying layer. Not understanding these keywords does not affect you as a qualified programmer. This means that these keywords will give

There must be a lot of static keywords, and everyone knows about them. What is the point of discussion? But when I think back to some previous things, I can't help thinking about them ...... The cause is that some classes in a project are all

Using server controls such as ObjectDataSource and GridView can indeed achieve very oop (however, I prefer to bind with Repeater, which is a little troublesome, and this is very fast) However, if dependency injection is required for applications in

How to read text file content:In the program described in this article, the read text file is displayed using a richTextBox component. To read a text file, you must use the "StreamReader" class, which is defined in the namespace "System. IO. You can