Recently made a module, real-time query log system.
The idea is: 1: When loading Web pages, read x records from the database, displayed in the page. 2: Set refresh time, dynamically read records from the database, in the client
Local refresh. Because it is local refresh, Ajax technology is used.
The following measures are:
1: Download Ajax.dll dynamic connection Library from website http://ajax.schwarz-interactive.de/csharpsample/default.aspx.
2: Configure Web.config
<system.web>
<add verb= "Post,get" path= "Ajax/*.ashx" type= "Ajax.pagehandlerfactory, Ajax"/>
</system.web>
3: Add the following code to the Web page
<HEAD>
<script language= "javascript" src= "Ajax/common.ashx" ></script>
<script language= "javascript" src= "Ajax/ajaxwebapp.demo,ajaxwebapp.ashx" ></script>
</HEAD>
Note: Ajaxwebapp.demo: Ajaxwebapp is the name of the namespace, demo is a class name.
4: Add Ajax.Utility.RegisterTypeForAjax (typeof (Ajaxwebapp.demo)) statement to Page_Load.
5: Start writing the method in the demo class:
Format: [Ajax.ajaxmethod]
public string GetDataSet ()
{
The code that reads the data.
return HTML;
}
6: This method is called in the HTML code of the Web page.
<script language= "JavaScript" >
Demo.getdataset (Getdataset_callback);
function Getdataset_callback (response)
{
var retvalue = Response.value;
Handling RetValue Code
}
</script>
7: The basic operation of Ajax has been completed by now.
8: The following implementation dynamically from the server side to obtain data:
Using JavaScript to leverage
SetInterval ("GetData ();", refreshtime);
The code in part 6th should read
<script language= "JavaScript" >
function GetData ()
{
Demo.getdataset (Getdataset_callback);
}
function Getdataset_callback (response)
{
var retvalue = Response.value;
Handling RetValue Code
}
SetInterval ("GetData ();", refreshtime);
Refreshtime is a custom refresh time
</script>
This, plus the code you want to process the data, you can!
