.Net Core

C # learning notes-KeyDown, KeyPress, KeyUp events, and KeyCode, KeyData, KeyValue, and KeyChar attributes, I didn't plan to write it separately, but when I tested the mini-program myself, the more I wrote and found that I was not clear about it,

The conversion from the datetime2 data type to the datetime data type generates a value out of the range ., Datetime2datetime EF exception: the conversion from datetime2 data type to datetime data type generates a value out of the range. Scenario

Chapter 2 user modification materials 2.4, mvc42.4 I. Users1.1 User Registration1.2 User Logon1.3 Change Password1.4 modify materials After a user logs on to the console, you must go to a page called user center. Add [default] action in

Chapter 4 of the mvc44 website creation tutorial deletes section 4.4 and mvc44.4 Iii. Topic 3.1 Add a topic 3.2 browse topic 3.3 update topic 3.4 delete a topic Open [CategoryController], add and delete the topic ManageDeleteJson (int id), and check

MVC website development permission management, mvc website development I. Preface It didn't take long for the company to get started with MVC. Now I can't understand it. I can only say that it will use this level. I feel that MVC is powerful in Web

MVC verification (combination of model annotation and non-intrusive script), mvc Annotation @ HtmlHrlper tags automatically generate some attributes, some of which are about verification. Example:     Model Annotation After model annotation, MVC

Js calls local programs and js calls A few days ago, when I was working on a project, I used js to call a local program and found a lot of information. One was to write the registry, and the other was to write a browser plug-in. Relatively speaking,

C # level operations of small programs Flying chess,   Flight level operations 1. Analysis and Design The basic rule of Flying chess is to roll the dice in turn. Here it is a loop structure, and then move forward based on the number of points thrown.

. Net sends emails through code, and. net code sends emails Key code: Namespace to be referenced: Using System. Net. Mail;Using System. Net; 1 MailMessage mailObj = new MailMessage (); 2 3 mailObj. from = new MailAddress ("mayun@qq.com"); //

For the first anniversary of Win10, let's take a look at the Linux subsystem and the first anniversary of win10. Bash Bash is a command processor that runs in a text window and can run commands directly entered by users. Bash can also read commands

With the nopcomerce3.8 version, I noticed that after the official version 3.8 was released two days ago, the author received some bugs. After fixing the BuG, the author re-provided a source code package for download. nopcommerce3.8 With the

SqlHelper performs addition, deletion, modification, and query, while sqlHelper performs addition, deletion, and modification. 1. display the data in the database How to Use sqlHelper: [You can download it online. You need to contact the landlord] 1.

[Switch] In WCF, InstanceContext, ConcurrencyMode, and wcfinstancecontext I. Preface Recently, I am busy with the company's online upgrade project. One person is responsible for the online upgrade of the company's four main products. These four

Asp: Use of the GridView control, aspgridview Control Use asp: GridView to display a statistical table   Cs style:       Aspx Control   Width = "100%" border = "0" CssClass = "gridview_m"OnRowCreated = "SmartGridView1_RowCreated">     Cs

ASP. NET MVC5 Verification Series-server verification, asp. netmvc5 In this article, I will talk about using the data annotation API for server-side verification. ASP. net mvc Framework verifies all data transmitted to the controller during

Precautions for. net development and. net Development 1. Try to use less static When an object is defined as static, the memory occupied by this object will not be recycled. Sometimes we define frequently called objects (variables) as static to

Aspose. Cells reads protected Excel files with passwords, aspose. cellsexcel Recently, I encountered a requirement that I should be able to read the password-protected Excel content. Previously, I directly read the data in the Excel file without

Geographic location of public platform development. Net code parsing, geographic location. net There are two geographical locations involved in the public platform:First,I can send a custom location to automatically feedback the response information.

. NEt inheritance, aggregation, and combination,. net inheritance and aggregation combination Inter-class relationship In the class diagram, apart from describing the names, attributes, and operations of individual classes, we also need to describe

Rookey. Frame: the enterprise-level quick development framework is open-source. Rookey. frame is a set based on. net mvc + easyui enterprise-level rapid development framework, supporting simple logic module zero-code programming, supporting workflow