C#

Recent work encountered a demand, need in ASP. NET core to achieve a basic identity authentication, the following this article is mainly about the implementation of ASP. NET core to achieve user login verification of the minimum configuration of

Httpcode version /// ///merge cookies, cookie2 and Cookie1 merge update return string type cookie/// /// Old Cookie /// New Cookie /// Public stringUpdatecookie (stringCookie1,stringcookie2) {StringBuilder SB=

C # operation Styline model left click on the model to get the coordinates, complete the line drawing operation. 1: Mouse Click Model Event list pos = new list (); private bool sgworld_onlbuttonclicked (int Flags, int X, int Y) {

1 Overview What do you think is wrong with the following example? If you can quickly find the problem and solve it, then you can skip this article, thank you ~ ~. 1 list ltpi = new List (); 2 DataTable dt = Getbase_userinfotodatatable (); 3 for (

This article describes how to create, install, start, monitor, and uninstall simple Windows Service content steps and Considerations in C #, and the friends you need can refer to the following One, create a Windows Service 1) Create a Windows

ArrayList Note: ArrayList 1. Using System; using System. collections; using System. collections. generic; class Program {static void Main (string [] args) {var al = new ArrayList {2, 3, true, "aa", true}; // al. clear (); var count = al. count;

Use a delegate and event to transmit parameters between two forms.Passing parameters between two forms using delegation and event Reference: http://blog.sina.com.cn/s/blog_49e3ed640102w0wm.htmlIn program development, we often transmit parameters

C # Small-end to large-end Little Endian to Big Endian, What are big ends and small ends? The definitions of Big-Endian and Little-Endian are as follows:1) Little-Endian is the low-byte emission at the low-address end of the memory, and the

Negative number, This article focuses on the following knowledge points: 1. Some basic concepts related to negative numbers; 2. Convert the binary and decimal numbers of negative numbers; 3. Negative Numbers and data types;   I. Basic Concepts

C # understanding of inverter and covariant ----- Why can inverter convert Object type parameters to String type parameters, According to the variability rules, only interfaces and delegation can mark the variability. The variability can be used

Parent subclass conversion (two methods) and conversion Class Person {public void PersonSay () {Console. writeLine ("person") ;}} class Student: Person {public void StudentSay () {Console. writeLine ("Student") ;}} class Teacher: Person {public

C # how to add Word text and image hyperlinks, A hyperlink is a content link. By setting a hyperlink, you can connect objects to webpages and sites. The link target can be a webpage, image, email address, folder, or application. The link object can

You can use Windows Services to regularly execute one of the three methods, windows three methods Method 1: Use the System. Timers. Timer Public partial class Service1: ServiceBase {private UnitOfWork unitOfWork; private System. timers. timer timer1;

C # File operations, FileClass is a static class, mainly used to provide some function libraries.The static objects class provides many static methods that support basic file operations, including creating, copying, moving, deleting, and opening a

Thread security collection class in C, All the set types of C # Have the Synchronized static method and the SyncRoot instance method. For ArrayList and Hashtable collection classes, it is best to use its built-in attribute SyncRoot to achieve thread

On the server C #, how to use NPOI to build an Excel template, Currently, I have used two templates for export: (1) C # using the NPOI interface to create an Excel template, and using a Data Rendering template on the server (2) using a framework

C # development portals and applications (48 ), In many of our frameworks or project applications, caching can improve the response speed of the program to a certain extent and reduce the load on the server. Therefore, we have considered introducing

C # exception, Basic Structure Try {} catch (other exception) {// capture various exceptions. The exception will be handled immediately here} catch (exception) {// All exceptions except the preceding exceptions are caught here, but an exception

C/S architecture and B/S architecture, s Architecture The content of this article is organized from http://blog.csdn.net/tennysonsky/article/details/45062079 The C/S architecture and B/S architecture are two influential software architectures. C/S

C # Summary of Excel Development controls under. Net (ClosedXML, EPPlus, NPOI ), Recently, an Excel report export function is required in the project. I searched for the Excel report during the holidays and listed the mainstream reports for