Reload the Item in Datalist without timer ?

Hi All ,

     We have used Datalist to show the Items .Data will come continuously to datalist . Can anyone suggest to load the items without postback as well as without timer need to load. Anyone  suggests some idea with sample Code. 

For Eg : i staty in that PageA. If data comes to datalist control ,it should load it to it with out any interaction made by the user . 

Thanking You , 

Karthik . K