C#

String resultfile = "";OpenFileDialog openFileDialog1 = new OpenFileDialog ();             Openfiledialog1.initialdirectory = "D:\\patch";             Openfiledialog1.filter = "All Files (*. *) |*.*|txt files (*.txt) |*.txt";            

C # mongodb [lower],Overview Traditional relational databases are generally composed of three levels: database, table, and record. MongoDB is composed of databases and collections) and document objects. MongoDB has no concept of columns, rows, and

Delegated learning notes 1: basic use of delegated learning notes 1 I. Introduction Before officially speaking about Delegation, I will first give an example and then introduce the delegation to be discussed later. It's easy to say hello to a robot.

Use. NET Code Contracts for runtime verification. netcontracts The Contract class library of. NET is part of the Declarative Programming Practice and can bring many benefits to daily Programming: To improve code readability, the user can see the

C # create an xml node using winformXmlDocument xmlDoc = new XmlDocument ();XmlDoc. Load (Help. basePath ); XmlNode root = xmlDoc. SelectSingleNode ("control ");      XmlElement timelock = xmlDoc. CreateElement ("lock "); XmlElement timelocksub1 =

Use C # To develop ActiveX controls,0. Preface ActiveX controls were previously called OLE controls or OCX controls. They are software components or objects that can be inserted into WEB pages or other applications. By using ActiveX plug-ins, you

This section briefly introduces the new features of C #6, A few weeks ago I read some new features related to C #6 in different places. I decided to collect them all together. If you haven't read them, you can repeat them all at once. Some of them

C # Multithread synchronization, Thread Synchronization is inevitable when writing multi-threaded programs. What is thread synchronization? For example, if A company has A variable that records the salary count of someone T = 100, there are two

Design Fluent API in C #Some frameworks we often use, such as EF, Automaper, and nhib.pdf, provide excellent Fluent APIs. Such APIs fully utilize the smart prompts of, the written code is also very neat. How can we also write this Fluent code in the

Automapper Extension Method and automapper ExtensionProblem description A custom PagedList is implemented in the system. /// /// Paged list interface /// public interface IPagedList { int PageIndex { get; } int PageSize {

Composite-oriented CoderCombination-oriented child   Combanitor-Oriented is a pattern that recently helped me open the new world door. This is because of haskell. For more information, see monad and ParseC. Finally, several articles by ajoo's

C #, C # Cross-language and java cross-platform C # is an object-oriented language Three basic features of object-oriented architecture:1. Encapsulation2. Inheritance3. Polymorphism Output line breaksConsole. write ();Output line feedConsole.

C # Socket generation 2: simple socket communication, After reading Series 1, we have enabled the listener status for socket tcp. In this chapter, we will explain how to create the socket communication code. Create a class TSocketBase 1 public

Basic Object-Oriented Knowledge-encapsulation, inheritance, polymorphism, and basic knowledge Polymorphism Object-oriented principles: Multiple combinations and less inheritance; low coupling and High Cohesion Inheritance focuses more on commonality;

NetworkComms communication framework V3 performance test, networkcommsv3 Our testing program adopts this mode. In the Networkcomms communication framework, if a connection already exists between the client and an endpoint on the server, it is called

C # iteratorIn. NET, the iterator mode is implemented through the IEnumerator and IEnumerable interfaces and their generic versions. If a class implements the IEnumerable interface, it means that it can be accessed by iteration. Calling the

C # output json, which contains sub-json (which can contain infinitely sub-json, The home page shows the method for converting DataTable to Json: 1 public static string TableToJson (DataTable dt) 2 {3 List list = new List (); 4 foreach (DataRow dr

Share an asynchronous task that supports the secondary method of recursive callback when an IO exception occurs. io Recursion public void TryAsyncActionRecursively( string asyncActionName, Func> asyncAction, Action mainAction, Action

Development of General extensible filters (background process gains) Pay source code, filter source code Demo source code Background FilterRefers toRaw data setMediumFilterOutputMeet RequirementsOfData subset. The filtering requirements in

Conclusion: C # delegation's comprehensive understanding, You must first understand the delegate before talking about the event.Delegate, the appearance seems to be no different from the function pointer in C/C ++, but essentially you find that it