.Net Core

1. database access performance optimization A. Minimize database connections and make full use of each database connection: It is overhead to create, open, and close A connection. Available connection poolB. Rational Use of stored procedures: stored

Process: Factory bricks, 10 workers finished 1000 bricksThread: Every worker who has moved 100 bricks is a task.Thread-based Asynchronous migration:Manual migration: 10 workers move at the same time, with high efficiency and asynchronous execution.

Function: returns the size of the border rectangle of the specified window. This dimension is given relative to the screen coordinate in the upper left corner of the screen coordinate.Function prototype: BOOL GetWindowRect (HWND hWnd, LPRECTlpRect );

This problem should be a very simple one. To be honest, when I spent two hours on it, when I came out later, I was really confused. I hope you can give me a reminder of this process. I. VB. NET ASP. NET problem Restoration When I edit a piece of

C # The first step to get started with reflection is to understand that C # reflection provides encapsulated assembly, module, and type objects. In this way, you can use reflection to dynamically create instances of the type, bind the type to an

I. Other notes for reading this article 1. During method calling, the type of the passed parameter is converted (there may be a simpler solution than this article, but I did not find it)2. Each line comment of each source file specifies the file

Add ModelThere are three ways to approach Entity Framework:There are three ways to use the Entity Framework:Database-first: You start with a database, and Entity Framework generates the code.Database-first (Database first): starts from a Database,

:The precondition is that your webpage supports UTF-8. For example, the settings in web. config are as follows:Copy codeThe Code is as follows: . Aspx:Copy codeThe Code is as follows: : 'forecolor = "Blue"> . Aspx. cs:Copy codeThe Code is as

1. To better operate IIS, add a class library (InstallClassLibrary) to the project. Code attachmentCopy codeThe Code is as follows:Using System;Using System. Collections;Using System. Collections. Generic;Using System. ComponentModel;Using System.

The first project of a new company going back to work in its hometown: OA. I have never done OA before. Because I designed the workflow, I learned about it myself. So I had this blog (the following is just my personal understanding, and I have been

Returns the first occurrence of a substring in a String object.Public indexOf (value: String, [startIndex: Number]): NumberSearch for the string, and return the position of the first matching item of the value found at or after the startIndex

The. aspx page only pulls one TextBox Control:Copy codeThe Code is as follows: In the. aspx. cs page, you are preferred to register the OnBlur event for the TextBox in the Page_Init event:Copy codeThe Code is as follows:Protected void Page_Init

Api functions: Copy codeThe Code is as follows:1. [DllImport ("user32.dll")] // device fetch scenario2. private static extern IntPtr GetDC (IntPtr hwnd); // return the device scenario handle3. [DllImport ("gdi32.dll")] // obtain the specified vertex

Therefore, the following functions are required for conversion:Copy codeThe Code is as follows:/// /// Replace special characters in html/// /// the text to be replaced. /// the replaced text. Public static string HtmlEncode (string

Common transmission modes and difficulties in specific environments We often have the following application requirements: resources are shared by exchanging public data files over the network, protecting private data from unauthorized access, and

I. OverviewIn web development, some data is often displayed. To facilitate the layout and browsing, we only need to display part of all records. In general, we use paging to achieve this requirement. There are multiple paging methods. In this

If you feel useful, copy it.By the way when you leave!Copy codeThe Code is as follows:Public MainPage (){InitializeComponent ();}PhoneApplicationService phoneAppService = PhoneApplicationService. Current;Protected override void OnNavigatedFrom

The IHttpHandler interface is defined as follows:Copy codeThe Code is as follows:Interface IHttpHandler{Void ProcessRequest (HttpContext ctx );Bool IsReuseable {get ;} 1. Create a website named MyHttpHandlerTest2. Right-click Add and select the

In those years, I was still studying asp.net (2) In those years, I felt that watching videos was easy to understand. However, this problem was that I felt too slow to read a book quickly, so I had to read some books after learning about it, maybe

Please Download the sample code in the JQueryElement sample section of the resource Download section (Download the sample code from the script house)This article describes the functions and precautions of the Uploader control:* Preparation* Create