.Net Core

  This article is a continuation of the previous Article (1) and an advanced version. This article uses An aspx file to demonstrate how to display the data list and edit the data together. Of course, when there are few data fields, you can directly

1. Create a console project and enter the following code: Static void Main (string [] args){If (! HttpListener. IsSupported){Throw new System. InvalidOperationException ("version too low ");}String [] prefixes = new string [] {"http: // localhost: 50

GAC stands for Global Assembly Cache and Global Assembly Cache. The role is to store some public assemblies that are used by many programs. For example, System. Data and System. Windows. Forms. In this way, many programs can obtain the Assembly from

1. Create a console project. The Code is as follows: Static void Main (string [] args){IPAddress address = IPAddress. Loopback;IPEndPoint endPoint = new IPEndPoint (addresses, 50000 );TcpListener newServer = new TcpListener (endPoint );NewServer.

This article mainly introduces the functions and usage of several core controls of ASP. net ajax. Including Scriptmanager, Updatepanal, Updateprogress, and Timer  Figure:    I used a mind map to sort out several core controls of ASP. NET AJAX. It

For setting the properties of all controls on the page, you need to use recursive methods for search, and you can use reflection to determine the attributes and set the attribute values. The Code is as follows: ASPX

In. in NET2.0, when the ReadOnly = "True" attribute is set for a TextBox on the page, assign a value to it through the client script, this value cannot be obtained when you access the Text attribute in the background code. After trying, we found

Zhijutuo, a technical expert, is connected to ejutuo.com. Their platforms are net 4.0, mvc 3.0, and iis7.5 support mvc route extensions, such as static page rewriting ., ajax, wcf Service, SQL 2008, SQL ce, and sqlLite are all called. far more than

Using System. IOVoid Download (){System. IO. FileStream r = new System. IO. FileStream (FileName, System. IO. FileMode. Open); // File Download instantiation// Set basic informationResponse. Buffer = false;Response. AddHeader ("Connection",

As we all know, the async method can only return void, Task, and Task .   For the async method that returns void, it is not awaitable, so other methods cannot call it using the await method, but the async method that returns the Task can.   So when

Add one more mouth:If you want to remove the button from the website, you can use HiddenField to store the Uri, which can be encrypted, or you can obtain the URL through this. Request. UrlReferrer. Note that the returned value of this. Request.

I recently learned the. NET Framework 2.0 advanced programming book, which is quite interesting. So I took notes and summarized the content based on my own understanding. This document mainly describes the. NET type, generic type, and set. Content: 1

There are several useful methods to refresh the asp.net page.First:Private void button#click (object sender, System. EventArgs e){Response. Redirect (Request. Url. ToString ());}Second:Private void Button2_Click (object sender, System. EventArgs

Yesterday, when I was optimizing my website code, I had a sudden whim trying to separate the Page code from the business logic code. That is, the. cs file under the page is only used to collect data on the front-end, and business processing is put

We all know that different deployment methods have an impact on the performance of the site. Some friends may already know this. In any case, let's talk about this problem in detail, the right of a familiar friend should be reviewed by J. Release

Today, we use a drop-down box Binding. It's easy to display hierarchical relationships. It's the first blog! /// /// Bind the drop-down list/// /// bound data source /// id of the upper level /// value name /// text name /// upper-level record

Clr via c # This book describes how events are implemented. CLR uses delegate fields to implement events:// 1. a private delegate field that is initialized to nullStatic EventHandler NewMail = null; // 2. a public add_Xxx method (where Xxx is the

Some time ago, bar charts and pie charts were used for development in the project. Because vs does not have a good control on this side, I searched the internet and found that the chart control was still very high. I would like to start the

Source code: 13033480 group sharing Task 1: Classic database connection 1. Operation Step 1. Open the code file Default. aspx. cs and enter the following code in the Page_Load () function: [Csharp]Using System;Using System. Data; Using System. Data.

Source code: 13033480 group sharing Procedure] 1. Right-click Web → add new project Web configuration file 2. Add a connection string [Html]   3. Copy CategoryInfo. c in the Model. 4. Add the ListBox control to Default. aspx. [Html]5. Add the