Ajax|asp.net Ajax cannot be said to be a good technique. Just had a ajax.net, to try.
Download a compressed package from the http://ajax.net/, unlock a txt quick usage guide and a doc Ajax. NET wrapper usage guide and a DLL.
Well, look at the txt first. Learn about the general steps of Ajax development:
A, project to establish a reference, the Ajax.dll reference in.
Ii. Modify the Web.config document and join
<add verb= "Post,get" path= "Ajax/*.ashx" type= "Ajax.pagehandlerfactory, Ajax"/>
Third, add the following code to the Page_Load event of the page:
Ajax.Utility.RegisterTypeForAjax (typeof (WebForm1));
Here, the page is ready to use Ajax.
You can write a function in the background code and call it on the client. Like what:
[Ajax.ajaxmethod ()]
public int Serversideadd (int firstnumber, int secondnumber)
{
return firstnumber + secondnumber;
}
Here [Ajax.ajaxmethod ()] This sentence must be added. Otherwise there is no way to use the client.
This way, the Serversideadd method can be used directly on the client. Like what:
function Add2 ()
{
var re=webform1.serversideadd (Form1.first.value,form1.second.value)
Form1.result.value =re.value;
}
We can see in JS, this service side of the method before also with a WebForm1, this is the page corresponding class name.
TXT file in the example just let you understand some of the role of Ajax, of course, there are more powerful. As a method used by the client, the return value can be not only a generic type such as int, string, but also a complex type such as a DataSet and class, which also provides the potential for "strong JavaScript" for the client, allowing developers to " Object-oriented "development.
At the same time, no refresh in Ajax is one of its bright spots. The famous component Componentart a new 3. 0 products, there are call-back components, you can try if you are interested.
Of course, Microsoft also has Ajax products: Atlas
Detailed information can refer to:
asp.net "Atlas" Preview documentation
