Extaspnet Application Skills (vii)

Introduction

In the latest release of Extasp.net v2.0.6, there is a major update:

------Optimize the internal implementation of Ajax, the viewstate of each page is now reduced by around 1/3 (important updates).

If you are interested in comparing the results of some of the page viewstate in V2.0beta5 and v2.0.6, you can see a blog.

Ajax in the Extaspnet

In the Extaspnet product description, there is such a phrase "native AJAX support", in fact, this is a feature we highly appreciate.

The so-called "native" is that developers do not need to do any setup, extaspnet in the postback default is an AJAX process.

Consider a simple example:

<ext:PageManager　ID="PageManager1"　runat="server"　/>
<ext:Button　 ID="Button1"　runat="server"　OnClick="Button1_Click"　 Text="Button">
</ext:Button>

protected　void　Button1_Click(object　sender,　EventArgs　e)
{
　　　 Button1.Text　=　"Click:"　+　DateTime.Now.ToLongTimeString();
}

When we click on the button, the value of the button is changed "click:20:34:42", if you look closely at this postback is not like clicking on a normal ASP.net button,

The page is not refreshed, and a red balloon "loading ..." is also displayed in the upper-right corner of the page during the postback.