How to update an GridView in JavaScript?

Question

Hi guys,

I have following given:

• I must have a grid-like control, at the moment I use ASP:GridViews
• I must update label in it specificly every second (there are countdowns in it)

At the moment, as I sayed, I use GridViews.

Pro:

• Update very easily over CodeBehind
• Easy to handle in general
• Easy to load data in it

Contra:

• I must update them every second, which is in normal asp-net timers and updatepanel nearly impossible because the overhead is so endless!

So I use at the moment JavaScript WebMethod / PageMethod for update-ing the rest of my site every 1 second.

Possible Solutions:

• Use ASP.Net Timers and live with the overhead
• Use JavaScript and a javascript grid develop every single grid new (much work)
• USe an alternative method

So, what are your ideas? Please don't forget the "why" and "how".