c# - MenusItems of WebDataMenu No Event Fires on the server -

i'm using remote webdatamenus dynamically add items; through access forms , trigger events execution of function or logic defined.

the problem arises when want run vb.net code via itemclick type event, event not working properly; or @ least can't work on server-side (it not fire), works great client-side through javascript.

it worth mentioning when click on items of menus run, vb.net code gives me javascript error '__dopostback' undefined - how can make work , run event vb.net code?

ps: make work now, i'm running vb.net function javascript through instruction pagemethods.webdatamenu2_itemclick (eventargs.getitem (). get_key ()); setting enablepagemethods = true property on scriptmanager.

however, not allow me use other controls method run, gives me initialization error in each of controls.

1. i add menus , menus items.

   -code html

   <ig:webdatamenu id="webdatamenu2" runat="server" font-bold="false"          font-names="arial narrow" font-overline="false" font-size="10px"          width="100%"  >     <groupsettings orientation="horizontal" />     <clientevents itemclick="webdatamenu2_itemclick" /> </ig:webdatamenu> 

   -vb.net code adding items menus

   ut = new infragistics.web.ui.navigationcontrols.datamenuitem ut.text = ds.tables(0).rows(0).item("x1").tostring() ut.tooltip = ds.tables(0).rows(0).item("x1").tostring() ut.key = "0" ut.imageurl = "~/imagestoolbar/employee20.gif" webdatamenu2.items.add(ut)   ut = new infragistics.web.ui.navigationcontrols.datamenuitem ut.text = ds.tables(0).rows(0).item("x2").tostring() ut.tooltip = ds.tables(0).rows(0).item("x2").tostring() ut.key = "1" ut.imageurl = "~/imagestoolbar/timecard20.gif" webdatamenu2.items.add(ut) 

2. currently add client-side event

   function webdatamenu2_itemclick(sender, eventargs) {     if (eventargs.getitem().get_key() != '') {         alert('test2: ' + eventargs.getitem().get_key());     } } 

3. vb.net code here trigger event in vb.net (here fails execute method)

   protected sub webdatamenu2_itemclick1(sender object, e infragistics.web.ui.navigationcontrols.datamenuitemeventargs) handles webdatamenu2.itemclick       nodotext = e      select case nodotext         case "0"             session("it") = 2             session("i") = 1             ident = session("i")         case "1"             session("it") = 2             session("i") = 800             ident = session("i")         case "2"             session("it") = 2             session("i") = 5             ident = session("i")         case "3"             session("it") = 2             session("i") = 6             ident = session("i")         case "7"             session("it") = 2             session("i") = 39             ident = session("i")         case "8"             session("it") = 2             session("i") = 80             ident = session("i")         case "4"             session("it") = 2             session("i") = 100             session("ri") = 101         case else     end select      inicio() end sub 

i tested in simple sample using code provided , works expected me. error __dopostback not being defined prevent server side event firing how asp.net post back.

i recommend check generated html file verify event defined:

function __dopostback(eventtarget, eventargument) {     if (!theform.onsubmit || (theform.onsubmit() != false)) {         theform.__eventtarget.value = eventtarget;         theform.__eventargument.value = eventargument;         theform.submit();     } } 

if event defined check invalid html maybe missing closing tag or maybe have other invalid script on page causing issue.