asp.net - Textbox textChanged event withount enabling postback -

asp.net - Textbox textChanged event withount enabling postback -

i have webpage many textboxes. want phone call function (calcbalance) on textbox_textchanged event. works textbox's postback set true, makes app not user friendly because when user scrolls downwards utilize other textboxes, "postback" keeps taking user top of page. i.e. user have scroll downwards after changing text in textbox.

is there way can phone call function without enabling postback?

thanks tim schmelter. easiest way set line: maintainscrollpositiononpostback = "true" in function (calcbalance).

asp.net vb.net-2010