C#

Example of the Distinct () method in MSDN Name {; Code {; Product [] products = {Product {Name =, Code = Product {Name =, code = lstDistProduct = (Product p ++ However, in actual use, it is often impossible to filter out non-duplicate data. Find

Double-click a WinForm program to open an interface, that is, an instance running a program. When you double-click multiple times, multiple program interfaces will appear. Sometimes we only need to allow the program to run only one instance at a

A common method used by catch and finally is to obtain and use resources in the try block, handle exceptions in the catch Block, and release resources in the finally block. Catch this will catch any exceptions. Catch (Exception e) This will capture

Recently, when I was working on OA, I encountered many configuration items that need to be manually modified for IE, such as file download prompts, ActiveX prompts, and browser tag settings. I felt that if I had asked users to manually configure

I. ACID properties of database transactions Transaction Processing ensures that data-oriented resources are not updated permanently unless all operations in the transaction unit are successfully completed. By combining a set of related operations

Requirements for selecting nodes in the TreeView tree: 1. If no node is selected, all its subnodes are not selected. 2. If a node is selected, all its subnodes are selected. 3. If no subnode of a node is selected, the node is not selected. 4.

How to Understand Elements We can understand metadata as additional information exported along with the type.. Sometimes we will consider exporting metadata along with the type and adding some instructions so that we can add some filtering

Main (savePath = sourcePath = sourceName = scale = Image. fromFile (sourcePath + width = img. width/height = img. height/= System. drawing. rectangle (, System. drawing. rectangle (, + first iteration code [] IMAGE_EXTNAME = [] {Main

　　 I went back to my bedroom last night and saw my roommate being troubled by a C # class assignment. The assignment content was to write a verbal training program to add questions at will. So I decided to save them if I liked to write C.Create

Namespace System. Windows. Forms. Controls{[ToolboxBitmap (typeof (LoginBox), "Resources.LoginBox.bmp")]Public class LoginBox: UserControl{}} You can find ToolboxBitmap on the Internet. Here I just want to emphasize some of my problems. 1. Why is

amtToMove = Input.GetAxis()*Time.deltaTime**(transform.position.x transform.position = Vector3(- = amtToMove = bulletSpeed * mytransform.Translate(Vector3.up * (mytransform.position.y>.gameObject);

Decoration mode: the dynamic topology adds some additional responsibilities to an object. In addition, the decoration mode is more flexible than the subclass generation.   Component is an object interface that can dynamically add responsibilities

In my spare time, I have been engaged in multi-thread learning. I only want to prepare for the next project. With the optimization, development, and performance considerations of the project, I will gradually use something that I didn't need before

Before reading this blog post, I hope you can read this article by Allan. Http://www.cnblogs.com/zlgcool/archive/2008/10/12/1309616.html When I visited the garden, I occasionally saw Allan. This article provides two dynamic compilation solutions.

In the past two days, I have reviewed my knowledge about delegation and events. 1. Delegate Delegate is the ability to pass methods as variables. The specific steps for using delegation in C # are as follows: (1) Statement of delegation. The

Classes and structures have members that represent their data and behavior. The class members include all the members declared in the class, and all the members declared in all classes in the inheritance hierarchy of the class (except constructors

I am afraid that "+" and "StringBuilder" are well known for the string efficiency. I will not go into detail in this article. For this article, please answer the following questions first (assuming that they are based on multiple cyclic and repeated

When the company server is started every day, it does not log on to the system. Therefore, to run a specific program, you only need to start it as a Windows service. We do not need to modify the original program, but need to communicate with SCM

Person (age,. age = age;. name = Main (= Person (, View Code Person (. age = Person (age, name): Main (= Person (,);} View Code Ii. Classification 1. The class names must be the same in the same namespace. The classes modified by partial are

Here, I would like to thank the "xor" operator. Really, thank you, ^ (xor). Without it, maybe my architecture is always inseparable from the negative formula, if you don't understand what I said, let's take a look at this article. In fact, this