asp.net - Enabling/Disabling RequiredFieldValidator -

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i have 2 combo box drop downs. on page load 2nd drop down validator disabled. if user selects value first drop down enable it. 2nd drop down enables validator not.

page load

protected sub page_load(sender object, e eventargs) handles me.load      combox_ger2.enabled = false                 valid_ger2.enabled = false        end sub

is fired combox_ger1.selectedindexchanged

if combox_ger1.selectedindex = -1         else             combox_ger2.enabled = true             valid_ger2.enabled = true         end if

in every page_load add

ajaxmanager.ajaxsettings.addajaxsetting(combox_ger1,combox_ger2) ajaxmanager.ajaxsettings.addajaxsetting(combox_ger1,valid_ger2)

this should work.


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