.Net Core

Entity Framewor learning notes (include + where), entityframewor What should we do if we want to filter subqueries? IEnumerable products = db.products.Include(p => p.colors.Where(c => c.id == 5)).ToList(); Product-color, 1-n You may think this is

EF + Mysql, efmysql Install ef and mysql in NuGet Install-Package EntityFrameworkInstall-Package MySql.Data.Entity.EF6Install-Package MySql.Data.Entity -Version 6.9.3 After the execution, the web. cong automatically generates the following

C # getting started with zero infrastructure 03: getting started with a mouse, I. Open VS in the source code manager. Note that the following method is to open the solution on the TFS source code server. If SVN is used, open the solution directly

C # Notes --- Dynamic applications, Background:Sometimes some data needs to be parsed in Coding, but the number and name of data fields are not uniform, so we cannot define entity classes to correspond. Then we will come up with the dynamic class of

C # access modifier, Access modifier in C: ① Private: private access modifier. Members modified by private access modifier can only access the current class, but cannot access other places. Class Members do not need modifiers. The default value is

Simple upload of Files Front-end1 2 3 4 View Code Background1 protected void BtnLoad_Click (object sender, EventArgs e) 2 {3 if (this. fileUpload1.FileName = "") 4 {5 Response. write (""); 6 return; 7} 8 DataAccess. dataDR datadr = new dataDR (

Deploy the website to hichina and deploy hichina 1: Apply for a host with a domain name from hichina 2: log on to the host Management Platform 3: set the basic environment-> bind the domain name and bind the purchased domain name to this server.

Difference between WebApplication and WebSite: webapplicationDescription When we create a new WebSite in VS2010, click the menu: File> new, there are two options: Project and WebSite. The default name of the new WebSite is WebApplication and

Post model to Web Api, postmodelwebapi The Post model can resolve multiple dynamic parameters to the Web Api to obtain or create data.If an object has many fields, you need to query each field or use model as a parameter when creating an object. In

In asp.net, what are the meanings and differences between , , and , In asp.net, html code containing the form of is often displayed, which generally contains the following formats: 1. This format is actually the same as asp, but it is only

Transmits multiple parameters and obtains the data of the Web API. It is very interesting to learn about Web APIs recently. The default route does not need to specify the Action name when obtaining data.Another thought is that after learning

Asp.net mvc tour-the second station snoops various results under the Controller, mvccontroller When encoding in actions, we all know that all types of return values of actions are ActionResult, and our return values are also a variety of wonders,

JSON extension class -- JsonHelper, json extension jsonhelper 1. Reference The Newtonsoft. Json Library (JSON. NET ). 2. copy and paste JsonHelper.   Source code: Using System; using System. collections. generic; using System. linq; using Newtonsoft.

Why do you give up using Thread. Sleep and thread. sleep?Preface This article does not mean to abandon Thread. Sleep completely, but to describe the conditions for use!Scenario In many cases, we need a scheduled service to process the

[Original] Bootstrap-based Modal secondary encapsulation and bootstrapmodal secondary EncapsulationPreface Bootstrap: an open-source front-end development toolkit launched by Twitter. It was developed by Twitter designer Mark Otto and Jacob Thornton.

Core Knowledge about Http and ASP. NET (2) protocol asp.netIntroduction HTTP (I have previously written the description of the http protocol, but I will write it again based on the principle of ensuring the independent integrity of the document.

List of required new. Net architecture tools and. net architecture tools N a few years ago, Microsoft posted ten necessary tools on the. Net Website. N years later, many things have changed and the list seems outdated. In addition, this article only

Windows window auto scaling and Window Scaling The automatic scaling function enables the Interface Designed on one computer to be properly displayed on another computer with different resolutions or system fonts. In this way, the form and its

Reads xml data from strings and contexts in xml format. 1. Read strings in xml format Suppose there is a string in the following xml format: ClientResponseHandler. cs Public class ClientResponseHandler {protected Hashtable xmlMap;/* set the xml

C # hosting and unmanaged resources, Managed resources refer to. NET resources that can be automatically recycled, mainly the memory resources allocated on the managed stack. The collection of managed resources does not require manual intervention.