Refresh without using autopostback

You can use AutoPostBack without page reloading by adding  these simple effects:

<meta http-equiv="Page-Exit"
    content="progid:DXImageTransform.Microsoft.Fade(duration=.5)" />

http://www.nikhilk.net/PageTransitions.aspx

^That's for Page-Exit. You can use it for Page-Enter, Site-Enter, etc..

<meta http-equiv="Page-Enter"
    content="progid:DXImageTransform.Microsoft.Fade(duration=.5)" />

I will look that, but how can I do that, call a function (that will loop throu the control and get a number) and then show it on a label.

Like validation controls !

You will need to write some javascript, something along the lines of

document.getElementById("textboxID") = formatted string

attached to the onchange event of the select control

Sorry for the delay of my answer.

What I want (and maybe I was not clear enough) is to perform actions without open the page again, like validation controls. The validation controls shows the result after you leave the textbox.

I have 12 checkboxes for the 12 months of the year and each month has one value (ex. 15). What I want is to show to the user the total value (sum) of the checked checkboxes before he save it.

Hope its clear know!

Thanks for the help so far &