C#

The Union of the collection is the item that merges the collection, as shown in: list LS1 = new list () {1,2,3,5,7,9}; list LS2 = new list () {2,4,6,8,9,10};ienumerable unionls = LS1. Union (LS2); foreach (int item in UNIONLS) { Console.Write (

The problem arises: The error dialog box appears when WinForm handles the control of multithreaded access to the main thread: Solution: Scenario One: Remove the security check for thread access to the main thread UI control,

For many beginners is a very easy to confuse, it is very simple to use, is simply to define the interface, the interface contains some properties, indexers, events and some methods without modifiers, there is no method of implementation of the code,

1 Timely release of resources The CLR hosting environment plays the role of garbage collection, so you do not need to explicitly release the memory occupied by the objects you have created. But that doesn't mean you can ignore all the objects you've

This article mainly introduces the Observer observer pattern of C # design pattern to solve the problem of Newton Children's shoes, simply narrates the principle of the observer pattern and analyzes the specific steps of using the observer pattern

This article mainly introduces the method of realizing dynamic Data drawing graphic in C #, and analyzes the relative operation skill of C # to draw 2D data table based on dynamic Data in the instance form, and the friends can refer to the following

This article mainly for you in detail the C # Anonymous delegate and lambda expression related data, with a certain reference value, interested in small partners can refer to Make programming more flexible by using anonymous delegates (anonymous

Why can an array be queried using linq? Problem cause This is almost a topic that does not need to be discussed at all, because linq (here specifically, linq to objects) is originally for the set type, the array type can be used as a collection

Generic (generic), Generic generic Generic is a new feature of C # Language 2.0 and general language runtime (CLR. The generic. NET Framework introduces the concept of type parameters. Type parameters make it unnecessary to determine one or more

Regarding the implementation of program functions in C # And thinking about code selection, It takes only a few days to get into contact with the C # language. What kind of in-depth research articles do you want to write? The estimation is full of

C # modifying the value through the object property name,From: csdn can assign values to an object attribute in the PropertyInfo. SetValue () mode. Note that the value type must be consistent with the attribute. Two methods to create an object

C # basic notes (the third day ), 1. type variables are not compatibleString and intString and doubleUse the convert conversion factory for conversion.String str = "123456 ";Int nums = Convert. ToInt32 (str ); 2. Front ++ and back ++, front -- and

C # sorting of field memory, Keywords: StructLayout, LayoutKind. Explicit, FieldOffset [StructLayout (LayoutKind. explicit)] public class AA {[FieldOffset (0)] public readonly Int16 m_x = 55; [FieldOffset (0)] public readonly Byte m_ B = (Byte) 22

Asynchronous and parallel ~ The role of CancellationTokenSource on the thread, Returned directory Speaking of CancellationTokenSource, we should not be unfamiliar. For Thread and Task, we start a Thread to do something. If we want it to stop

Use reflection and features to simplify code and reflection features to simplify code Suppose there is a Student) /// /// Student class /// public class Student {// /// name /// private string name; public string Name {get {return name;}

Installing Fonts programatically C #, Using System; using System. collections. generic; using System. componentModel; using System. data; using System. drawing; using System. linq; using System. text; using System. windows. forms; using System. IO;

Singleton mode, Mode 1 // 1. Thread unsafe 2 // public sealed class Singleton 3 // {4 // private static Singleton instance; // define a private static global variable to save the unique instance of the modified class 5 // private Singleton () {}6 //

When using JavaScriptSerializer for serialization in C, Recently I am working on a data exchange service interface, using the. NET Web API project. You need to monitor the data of each request, that is, the operation log. The request data is an

Net mvc use NPOI to import and export excel and mvcnpoi 1. Export Excel:REFERENCE The NPOI package first (Action must use FileResult) /// /// batch export the list to be exported /// /// public FileResult ExportStu2 () {// obtain list data var

Entrusted and anonymous entrusted Originally, I wanted to write an article "past and present of the Delegate and lambda expressions", but only the delegate has already written a lot of content, so I will separate the content about the Lambda