.Net Core

[C #] learn to handle exceptions,Learn to handle exceptions C # programmers can use the try block to partition code that may be affected by exceptions. The associated catch block is used to handle any result exception. A finally block containing

[C #] exception description,Exception description The C # Language exception handling function helps you handle any exceptions or exceptions during the running of the program. Exception Handlingtry,catchAndfinallyKeyword to try some operations to

Image uploading and image uploading websites This article mainly records my daily code, makes it easier to recall in the future, and provides some templates for beginners. Write an upload piece today, because I mainly learn about MVC, so write it

C # run the program as an administrator, When you use the winform program to obtain the cmd command prompt, if the operating system is win7 or above, you must run it as an administrator to succeed. Otherwise, no effect or error is prompted. For

[C #] packing and unpacking (sorting ), Packing is to convert the value typeobjectType or any interface type implemented by this value type. When the CLR loads the value type, the value is encapsulated into System. Object, and then stored on the

EF Fluent API, effluentapi What is Fluent API? Official answer: the conventions embedded in EF map POCO classes to tables. However, sometimes you cannot or do not want to follow these conventions, and you need to map entities to other objects beyond

Summary of switching MySql: switching mysql Recently, when there were not many project tasks, I thought about changing SqlServer to MySql (ado.net used for data access). I initially thought of two solutions: Solution 1: continue to use ado.net and

EntityFramework query-Join and entityframeworkjoin First, let's take a look at Join. public static IEnumerable Join(this IEnumerable outer, IEnumerable inner, Func outerKeySelector, Func innerKeySelector, Func resultSelector); The first parameter

Solr3.6.1 is set up in the Tomcat6 environment, solr3.6.1tomcat6Solr3.6.1 build an environment in Tomcat6 Tomcat path: D: \ prg \ apache-tomcat-6-solr abbreviated as tomcat_home Solr File Download save path: F: \ software \ Lucence \ solr \

Log4net (ASP. net mvc 5), log4netmvc In the first four Log4net introductory articles, we talked about some simple usage of log4net. In this article, we mainly talked about how to use it in ASP.. net mvc 5 Project writes log information to the SQL

Create a pie chart with Baidu echarts and a pie chart with echartsI am also a new graduate. What's wrong? I 'd like to give you a lot of advice and directly reference the code // Baidu echarts library and jquery library // defines a div block to

C # learning notes-encapsulation, Preface I am ashamed to say that I have learned C # For more than half a year. In fact, I first came into contact with the encapsulation part, but I have been confused about it, and I feel that I don't care much if

Detailed description of ASP. net mvc drop-down box Binding four methods, asp. netmvc Preface In the last two sections, we talked about the file upload issue. The question about this upload is not over yet. I am also taking the time to split large

19 required Visual Studio shortcuts, Visual Studio This article will list common shortcut keys in Visual Studio. Correct and skillful use of the shortcut keys will greatly improve your programming efficiency. Project-related shortcut keys Ctrl +

How to Build the Asp.net core development environment in VS2015, vs2015asp.net Preface With ASP. NET Core 1.0 rtm is released, and there are many issues online. net core related articles. Recently, I have tried VS2015 to build the Asp.net core

Allows you to upload and crop images online based on asp.net, 1. Description After asp.net uploadify implements the multiattachment upload function, it suddenly uses the Avatar upload and online cropping. I have found many examples on the Internet

Asp. netjson Create a general Handler Public class Temp {public int Index {get; set;} public string Description {get; set;} public string ImagePath {get; set;} public DateTime MyDate {get; set ;}// data source List listTemp = new List () {new Temp

ASP. NET uses SignalR to establish persistent connections between browsers and servers. asp. netsignalr Preface The browser accesses the webpage through the HTTP protocol. The browser sends a request and the server returns a result. The server

How to Implement CORS and corecors in ASP. NET Core CORS (Cross-origin resource sharing) is a W3C standard, translated as "Cross-origin resource sharing", which mainly solves the problem of Cross-origin Ajax restrictions. CORS requires support from

ASP. net mvc asynchronously retrieves and refreshes ExtJS6 TreeStore and extjs6treestore Retrieving a tree structure from a database is the core technology of ExtJS TreePanel. A common method is to configure proxy in TreeStroe. In this way, the root