.Net Core

Do not study for writing notes !!! ). Of course, the value of review is worth time. Enumeration and Structure The enumerated types are limited (short, byte...) and are the same. Find some examples of enumeration on MSDN and think this is not bad:

Determines whether the input string is a number.   Namespace { Class Program { Static void Main (string [] args) { Console. WriteLine (" Int age = ReadInt (); Console. WriteLine ("   Console. WriteLine (" Int year = ReadInt (); Console. WriteLine ("

The main updates are as follows:1. Supports SQLite databases and generates SQLite database models;2. Generate SQLite database code;3. Supports Custom Attributes of data table fields;4. data table attributes, field attributes, key attributes, and

It re-organizes internal code without changing system behavior, improves comprehensibility and reduces modification costs. A small modification involves multiple places, and these points are unknown. Not easy to understand code (including

Use the IController interface to complete a default route for the controller: routes.MapRoute( name: "Default", url:"{controller}/{action}/{id}", defaults: new { controller ="Home", action = "Index", id =

Some netizens read this article ASP. net mvc after loading ASCX, and for the value of the http://www.cnblogs.com/insus/p/3643254.html, asked Insus. NET. Instead of assigning values in the control controller, you want to use jQuery in the view to

Steps: I. Foreground JS retrieves HtmlTable data and Concatenates the data according to the set delimiterData = "" # divRptTable "). find ("table "). find ("tr "). each (tr = $ ("td "). each (td = $ (rowspan = td. attr ("rowspan ")? Td. attr

There are many implementation methods for file upload, such as the traditional form method, the popular flash method, and even the pure JS method. These methods are used to upload files, I think the main reason is that,Traditional upload does not

It is necessary to record the reason why the website stops running. The following is a specific implementation method.Copy codeThe Code is as follows:Protected void Application_End (object sender, EventArgs e){RecordEndReason ();}/// /// Record the

Reading directory Start Configure OutputCache Enable content expiration Solve resource file upgrade Problems Enable Compression Delete useless HttpModule Other Optimization Options This article will introduce some methods used to optimize

Introduction: I am evaluating an ASP. NET Web project application. It has some scalability problems. This means that when the website traffic increases. The system will become slow. When I view the application log. I found a large number of

Returns the Expression Tree for non-datetime field reflection.  Expression GetSearchExpression (SearchString) { Expression filter =; (. IsNullOrEmpty (SearchString )); Left = Expression. Parameter (T ),); Expression expression = Expression.

Copy codeThe Code is as follows:Using System;Using System. Collections;Using System. ComponentModel;Using System. Data;Using System. Drawing;Using System. Web;Using System. Web. SessionState;Using System. Web. UI;Using System. Web. UI.

When you write an api to a web api, the default response is to serialize your object and return it in XML format. How can we make it return as json? The following describes two methods:Method 1: (Change configuration method)Find the Global. asax

1. KeywordsKeywords are often used in C # code. keywords are also called reserved words. They are strings with specific meanings for C. Keywords are displayed in blue by default in the Code view of the Visual Studio environment. For example, the

Copy codeThe Code is as follows:Using System;Using System. Data;Using System. Configuration;Using System. Web;Using System. Web. Security;Using System. Web. UI;Using System. Web. UI. WebControls;Using System. Web. UI. WebControls. WebParts;Using

---------------------------Microsoft. NET Framework 2.0 Installer---------------------------Error 25015. install the assembly "C: \ WINDOWS \ Microsoft. NET \ Framework \ v2.0.50727 \ Microsoft_VsaVb.dll "failed because of a system error: Another

After a reincarnation, hardware development and hardware entrepreneurship were pushed to the front-end of history. For low-end and elementary hardware enthusiasts, open-source hardware with the core of Arduino and 81 single-chip development boards

. The files and attachments uploaded on the. net Website do not need to be downloaded by unauthorized users due to confidentiality or copyright reasons. users who have logged on can download the files according to their authorization, if the server

Directory: C # tips] C # some confusing concepts-------- Data type storage location, method call, use of out and ref Parameters C # tips] C # some confusing concepts 2) -------- constructor, this keyword, partial classification, enumeration C # tips