how to show refresh message on browser window

Question

Hi,

I have an asp.net application with Ajax in which m usign update panel for a grid view for refreshing. I want to show the message on browsing window saying "Refreshign in 30 seconds"( number vary for each second).

Please let me asap.

Thanks Rupa

Answer 1

Look at the asp:Timer Control inside an update panel.

Here

Answer 2

You can do this on the client in javascript with some good old fashioned DOM manipulation:

var count=30;
var interval=setInterval(function()
{
 var tn=document.createTextNode("Refreshing in "+count+"s"); 
 var targetElement=document.getElementById("someElemId");
 var replaceText=targetElement.childNodes[0];
 if(replaceText!=null)
 {
  targetElement.replaceChild(tn,replaceText);
 }
 else
 {
  targetElement.appendChild(tn);
 }
 if(count==0)
 {
  clearInterval(interval);
  window.location.reload(true); //or whatever you need to refresh
 }
 --count;

},1000);

You'll need some sort of element in the DOM with id "someElemId". Of course, setInterval isn't 100% accurate, but should be good enough.