C#

First of all, explain the principle of using the Socket Interface network communication, where the most commonly used C/s mode as an example, first, the server has a process (or multiple processes) on the specified port waiting for the client to

This article focuses on the graphical method of deploying an ASP. NET Core project on IIS, and the required friends can refer to the following Overview Unlike the ASP. NET era, ASP. Core is no longer hosted by the IIS worker process (w3wp.exe), but

Initialization and scope of variables Initialization C # has two methods to ensure that variables are initialized before they are used: Variables are fields that, if not explicitly initialized, have a default value of 0 when these

1. Old Version Code 1 class Program 2 {3 static void Main (string[] args) 4 {5 var fullName = Getfullname (); 6 7 Console. WriteLine (FULLNAME.ITEM1);//item1,2,3 can not endure,,, 8 Console.WriteLine (FULLNAME.ITEM2)

When it comes to encapsulation, it is actually the problem of the basic class, which provides the system and the system, the module and the module, the realization means of the interaction between the class and the class. As a junior GIS

We usually use PowerPoint presentations when we have a meeting or a summary report, and we can add comments on a single slide or on all the slides so that the audience can get more information from the comments, and the friends you need can refer to

C # captures Windows shutdown events and does what it wants to do before the system shuts down; Sometimes we might want to record or process something when Windows shuts down, and here are a few ways to do it. Method One: /// window

This article describes how to use free components in C # to add text annotations to PDF documents, including free text annotations. Free text annotations allow us to customize the style and appearance of it, very practical value When we organize

How C # TabControl components display a form Title, that is, when you click on an item in the MENUSTRIP1 component or TOOLSTRIP1 component, no longer jumps out of the form and all appear in TabControl, the TabPage page header name is also the name

This article has introduced the System.Linq.Dynamic through row to column, and introduces the filter function, has the very good reference value. Let's take a look at the little series. Recently in the report statistics requirements, involving row

This paper mainly introduces the basic knowledge of variables in C #, and has a good reference value. Let's take a look at the little series. Use variables in 3 steps: Declare, assign, use. Syntax for declaring variables: data type variable name;

Integer or decimal: ^[0-9]+/. {0,1} [0-9] {0,2}$Only numbers can be entered: "^[0-9]*$".Only n digits can be entered: "^/d{n}$".Only numbers with at least n digits can be entered: "^/d{n,}$".You can enter only the digits of the m~n bit:.

WinForm Program Automatic Update I was also the first to do, the Internet to find the source of Automatic Updates, and then according to some of the methods seen on the Internet, I have tried for a long time, eventually there is a write error, so

This article mainly describes the C # call C++dll transfer struct array of the ultimate solution of the relevant data, the need for friends can refer to the following C # Call C++dll the ultimate solution for passing struct-body arrays In the

VS2017 Cordova Ionic2 mobile development-Environment Building, vs2017cordova 1. Document Overview This document describes how to configure the runtime environment for cross-platform development using Ionic 2 in Visual Studio 2017. 2. installation

Use openXML to export excel and openxmlexcel without plug-ins The comments are very detailed. If you have any questions, please ask. Using System. IO; using System. text; namespace iLIS. common {// /// generate Excel document content /// save to

Notes for learning from LINQ Basic Concepts As a breakthrough new feature launched by Microsoft, LINQ is Language integrated Query. It establishes a ing between objects and data, you can query data sets by accessing memory objects. In. in the. NET

C # Call the SQL server stored procedure, Go straight to the topic, record Namespace: using System. Data. SqlClient; Database LINK string: database link string format: server = {0}; database = {1}; uid = {2}; pwd = {3} // 0: server, 1: Database

C # export Datatable data to an Excel table, Public FileResult GetExcelFile (){If (Session ["beginDate"]! = Null){String bdate = Session ["beginDate"]. ToString ();DateTime ld = Convert. ToDateTime (Session ["lastDate"]. ToString ());DateTime ldate =

A record about checking class property values [knowledge point Attribute], attribute value Attribute I haven't come in for a long time. I used to write a blog and record my experience as a code Porter. But after just a few days, I gave up! Indeed,