C#

Service side:[WebMethod] Public stringGetnewservice (stringversion) { //Compare by version number if(Version = ="v1.0") { return "no new version! "; } Else { return

New collection: ArrayList n = new ArrayList ();Added content: N.add (1);N.add ("Ren");Number of outputs: Console.WriteLine (n[1]);Insert Wo:n.insert (4, "Wo") in the fourth position;Data for output N[4]: Console.WriteLine (n[4]);Determine if it

C # ing between data types and. NET CTS, C # common value types, such as int, float, double, and bool, are alias of. net cts (general type system). The appendix is as follows: C # type . NET Framework type Bool System.

Singleton mode application ___ network TV genie ,__ network TV genie Network TV genie     First, create several basic classes.       Programming attributes: broadcast time, time period, name, and video path Channel base class attributes: channel

C # The first day of basic learning (the path to growth of. net cainiao-No foundation to proficient ), 1. Concepts of Net platform and C # Programming Language 2. desktop applications: To use a desktop application, you must install the client of the

C # GZip compression/DecompressionSometimes we need to compress data, such as video/audio/content, and so on. Many of them are used in socket programming. However, Microsoft provides us with a class GZIP for decompression. However, this is something

[C #] implementation principle of the void type, Int? Is a null value type. Only one value greater than int Is null. Thoughts: In the same memory space, how can one more value be implemented? All are 4 bytes, 32 bits, int? Depends on what has a

C # appearance of basic, 1. What is c # C #, read as "C sharp", is an object-oriented high-level programming language released by Microsoft and runs on. NET Framework. C # integrates the simple visual operations of VB and the high operating

C # obtain hardware information, // Hardware information Public class GF_Hardware { /// /// Cpu serial number /// /// Public static string getID_CpuId () { String cpuInfo = ""; // cpu serial number ManagementClass cimobject = new

Understanding of enumeration types and Structure Types What is enumeration? Enumeration is a set of literal values, each of which corresponds to one literal value. What is enumeration useful? For example, if we need to show the Four Seasons in

C # MD5 Verification Sun Guangdong 2014.6.24   After data is transmitted over the network, it becomes very insecure. The simplest and most effective solution is to add a key to the data and use the MD5 algorithm to calculate the verification code,

C # use static constructor, When we want to initialize some static variables, we need to use static constructors. This static constructor belongs to a class instead of an instance. That is to say, this constructor will only be executed once, that is,

C # Data Structure Stack,   Stack and queue are two very important data structures. Stack and queue are also linear structures. The logical relationships between data elements and elements are the same for linear tables, stacks, and queues. The

Xml serialization removes namespaces, declarations, and xml serialization # Region serialization/// /// Serialization/// /// type /// Object /// Public string Serializer (Type type, object obj){MemoryStream Stream = new MemoryStream

C # The folder address of the captured file, Create a file 1 if (! File. Exists (file_name) 2 {3 File. Create (file_name). Close (); 4} Using System. IO; If no. Close () exists, open the file immediately and the software will prompt an

C #'s replacement principle, Lee's conversion PrincipleSub-classes can be assigned to parent class objects.The parent class object can be forcibly converted to the corresponding subclass object.The principle of RYS replacement is intuitively

. Net development windows Service summary,. netwindows SummaryToday I learned how to create a windows service under. net. Development Environment: visual studio 2012 I. Program writing (1) Create an empty solution (2) Add a console application

C # returns the byte stream of the image [] # Region returns the byte stream of the image byte [] ///// Byte [] /////////// Public static byte [] getImageByte (string imagePath, WebClient webClient) {byte [] imgByte = null; try {// MessageBox. show

That is, when using ADO. NET, lightweight dynamic generation and updating SQL, ado. netsql For whatever reason, sometimes framework staff abandon NH or EF and use native databases to access objects. For beautiful programming, use the lightweight

C # develop the Windows Service Program Control Function The Windows Service Program is inevitably used for some scheduled tasks, but there is no operation interface. Every time you start, restart, or close a task, you need to find the Service on