ExtJS the use of Ajax is very simple, look at the following code:
1.Html page:
<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<meta http-equiv= "Content-type" content= "text/html; Charset=utf-8 "/>
<link rel= "stylesheet" type= "Text/css" href= "Js/ext2.2/resources/css/ext-all.css"/>
<script type= "Text/javascript" src= "Js/ext2.2/adapter/ext/ext-base.js" ></script>
<script type= "Text/javascript" src= "Js/ext2.2/ext-all.js" ></script>
<title></title>
<body>
<script type= "Text/javascript" >
Ext.onready (function () {
var Fnajaxdemo = function () {
var MyData;
Ext.Ajax.request ({
URL: "Getdata.ashx?name=" + encodeURIComponent (ext.get ("name"). Dom.value),//server-side address
Success:function (Request) {
MyData = Request.responsetext; Server-side Text data
Ext.MessageBox.alert ("Return value", MyData);
},
Failure:function () {
Alert ("failure!");
}
});
}
Ext.get ("Btntest"). On ("click", Fnajaxdemo);
})
</script>
<input id= "name" value= "Jimmy" name= "name"/>
<button id= "btntest" > Get server information </button>
</body>
2. Service-side Getdata.ashx
using System.Web;
using System.Web.Services;
namespace Ajax_WCF
{
/// <summary>
/// $codebehindclassname$ 的摘要说明
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class GetData : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
if (context.Request["name"] != null && context.Request["name"].ToString()!="")
{
context.Response.Write("Hello World," + context.Request["name"].ToString() + "!");
}
else
{
context.Response.Write("Hello World");
}
}
public bool IsReusable
{
get
{
return false;
}
}
}
}
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