How to realize the Real-time display of the website by ASP.NET

This article mainly explains "ASP.NET how to achieve real-time display time on the website". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to achieve real-time display time on the website by ASP.NET".

This paper gives an example of the method of real-time display of time in ASP.NET website. Share it with you for your reference. The specific methods are as follows:

When developing and designing web sites or web applications in the ASP.NET environment, it is often necessary to display the current date and time in real time. At this point, the AJAX control is usually used to implement it.

It is important to note that in the .NET Framework version 2.0, there are no AJAX Extensions controls in the toolbox. AJAX is integrated into the .NET Framework 3.5 version.

ASP.NET AJAX consists of three parts:

① A client library or framework that extends client-side JavaScript functionality

② a server-side programming and development extension package that allows ASP.NET AJAX to be well integrated into Visual Studio

③ is a toolkit developed and supported by the community.

On the server side, the AJAX expansion pack contains a few AJAX controls, namely: ScriptManager, ScriptManagerProxy, Timer, UpdatePanel, UpdateProgess.

Among them, the ScriptManager control can instruct the ASP.NET configuration engine to send a response to the client in AJAX mode, and introduce a script library when sending the response.

It is important to note that each Web form of ASP.NET that supports AJAX functionality must contain and contain only one ScriptManager control.

UpdatePanel is a control container in a new Web form implemented using AJAX. Each ASP.NET Web form to support AJAX can contain one or more UpdatePanel controls.

To achieve real-time display of time, you only need the following two steps:

1. Create a new Web form in the ASP.NET project, named ShowCurrentTime, with the foreground code as follows.

The copy code is as follows:

Dynamic display of real time

Dynamic display of real time

The current time is:

2. In the ShowCurrentTime.aspx.cs file, you only need to add a sentence of code. The code is as follows:

The copy code is as follows:

Using System

Using System.Collections.Generic

Using System.Linq

Using System.Web

Using System.Web.UI

Using System.Web.UI.WebControls

Public partial class ShowCurrentTime: System.Web.UI.Page

{

Protected void Page_Load (object sender, EventArgs e)

{

Label1.Text = DateTime.Now.ToString ()

}

}

At this point, the function of real-time display of time in Label is completed. In addition, you can set the style of time display as needed.

If you only want to display the date, but not the time, you can use SubString to fetch the previous date.

Thank you for your reading, the above is the content of "ASP.NET how to achieve real-time display time on the website". After the study of this article, I believe you have a deeper understanding of how ASP.NET realizes the real-time display time of the website, and the specific use still needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!