The difference between arrays, ArrayList, list<t> in C #

Own understanding of1. Arrays:Advantages: (In-memory) storage continuous, fast indexing, multidimensional, type-length fixedCons: Need to specify length, insert data is inefficient2.ArrayList: (System.Collections)Pros: No need to specify length

Serialization of objects in "original" C + +

1. Serialization of objectsThe serialization of an object is the process of translating the state information of an object into a form that can be stored or transmitted. The deserialization of an object is a process that is reversed from

C # Unpacking, boxing

C # data types are divided into three categories, value types, reference types, and pointer types. Pointer types can only be used in unsafe mode, whereas value types and reference types may be converted to each other through unboxing and boxing

How and how TransactionScope is used in C # (excerpt)

From 51CTO Blog: http://cnn237111.blog.51cto.com/2359144/1271600In the era of. NET 1.1, there are no TransactionScope classes, so much of the processing of transactions is given to SqlTransaction and SqlConnection, each transaction based on each

C # WinForm uploading files to the server

1. First create a new Web site Axpx page on the server sideThen the site of the background write code to get WinForm sent over the file name.Statement: Although this method is the simplest and most convenient, but upload large files may be error, my

C # get Download path

Request.applicationpath Returns/or IIS under directory. If the personal site is a new directory under the IIS Web site AAA, return such as:/AAARequest.Url.Authority return domain name and port or IP such as: localhost:1897var applicationpath

C # Get the page get-over data

Get data from Get overprivate static NameValueCollection GetInput (System.Web.UI.Page Page){Return page. Request.QueryString;}Example:String Re = "";public static bool Analysis (string cmodule, System.Web.UI.Page Page){NameValueCollection NVC =

C # Get the page post data

Get the data that comes in postprivate static string Postinput (System.Web.UI.Page Page){Try{System.IO.Stream s = page. Request.inputstream;int count = 0;byte[] buffer = new byte[1024];StringBuilder builder = new StringBuilder ();while ((count =

For the first time to do C/s architecture, many things have been explored, and some experiences are summarized as follows: Give beginners some Gospel

1, the first is the data transfer between forms, and the control of the associated form?In the parent form, a new subform comes out, the constructor for the form is set to a parameter, the parent form's parameters are passed through the constructor,

C # 6.0 new features Top 10

Http://www.developer.com/net/csharp/top-10-c-6.0-language-features.html1, single-line function expressionUse + = To simplify only one line of functions.Class employee{ //Method with only the expression public static int calculatemonthlypay (int

C # import Excel into the dataset

classImport {/// ///import Excel into the dataset/// /// the file's path and full file name, with extension /// PublicDataSet Exceltodataset (stringstrfilesourse) {DataSet DS=NewDataSet (); //Excel Data source

C # Paint

Draw Lineprivate void Form1_Load (object sender, EventArgs e){This. Paint + = new Painteventhandler (form1_paint);}Draw Linevoid Form1_paint (object sender, PaintEventArgs e){Pen Blackpen = new Pen (color.black, 2);//Create BrushPoint point1;//Start

C # Self-study Series-Opening

2014 is about to pass, this year I participated in a lot of interviews, was asked a lot of questions. Come back to the conclusion found that they do have a lot of shortcomings in the foundation, there are a lot of things I do not know. In the second

"CLR via C #" events

Design the type of event to expose 1 //define the type to accommodate all additional information that needs to be sent to the event-pass recipient2 Internal classNewmaileventargs:eventargs3 {4 Private ReadOnly stringM_from,

C-pointer pointer

Overview:The 77th program of the previous ' Classic C language programming 100 cases '1#include 2 3 int4Mainvoid) {5 Char*s[]={"Mans","woman","Girl"," Boy","Sister"};6 Char**p;7 intK;8 for(k=0;k5; k++) { 9p = &s[k];/*What statements

<c:forEach> explanation

The tag is used for general data loops and has the following properties Properties Description Whether you must Default value Items Projects that are looping Whether No

Program C demonstrates the process of producing zombie Processes

Program C demonstrates the process of producing zombie ProcessesCopy the following online description of the zombie process:Zombie Process: A process uses fork to create a child process. If the child process exits and the parent process does not

[Original] serialization of objects in C ++, serialization of original objects

[Original] serialization of objects in C ++, serialization of original objects 1. Object serialization Object serialization refers to the process of converting object state information into a form that can be stored or transmitted. Object

Distance on the board

Distance on the board Problem descriptionThe chess board is a black and white 8x8 square. the chess board is placed in the middle of the grid. :   The following are the rules for Wang, Hou, Che, and Xiang: Wang: horizontal, straight, and oblique

GetClientRect (), GetWindowRect (), getwindowrect

GetClientRect (), GetWindowRect (), getwindowrect GetClientRect () is the RECT of the customer zone in the coordinate system of the customer zone. GetWindowRect () is the RECT of the entire window in the screen coordinate system.   GetSystemMetrics (

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