asp.net - Radiobuttonlist results not working when rbl's dynamically created -

i have 20 radiobuttonlists dynamically created - declared when form submitted.

i have code totals number of answered questions , total value of answered questions. - code used work when radiobuttonlists hard coded page, not. - writing number of questions answered , total value of answers page come 0.

can see why might not work radiobuttonlists dynamically created.?

code behind:

sub page_load(byval sender object, byval e eventargs)          integer = 1 20              dim tablerow new tablerow()             dim tablerowcell_1 new tablecell()             tablerow.cells.add(tablerowcell_1)             holidayquestionnairetable.rows.add(tablerow)              dim question new radiobuttonlist             question.id = "question" &              question.items.insert(0, new listitem("", "1"))             question.items.insert(1, new listitem("", "2"))             tablerowcell_1.controls.add(question)          next  end sub 

...

sub btnsendfeedback_click(sender object, e eventargs)      dim question1 radiobuttonlist = directcast(page.findcontrol("question1"), radiobuttonlist)     dim question2 radiobuttonlist = directcast(page.findcontrol("question2"), radiobuttonlist)     dim question3 ...     ...     dim question19 radiobuttonlist = directcast(page.findcontrol("question19"), radiobuttonlist)     dim question20 radiobuttonlist = directcast(page.findcontrol("question20"), radiobuttonlist)      dim rblcount double     dim total double     dim avg double      each ctrl ui.control in me.mypanel.controls         if typeof ctrl radiobuttonlist             dim rbl radiobuttonlist = directcast(ctrl, radiobuttonlist)             if rbl.selectedindex > -1 , not rbl.id = "question18"                 dim value double = double.parse(rbl.selectedvalue)                 total += value                 rblcount += 1             end if         end if     next      response.write(rblcount & " - " & total & " - " & (total / rblcount))  end sub 

body:

<asp:placeholder id="mypanel" runat="server">         <asp:table runat="server" cellpadding="0" cellspacing="0" gridlines="none" horizontalalign="center" cssclass="ratingtable" id="holidayquestionnairetable" />         <asp:button onclick="btnsendfeedback_click" runat="server" text="submit..." id="submitbutton" /> </asp:placeholder> 

you have changed content of panel , added table instead of using panel add radiobuttonlists directly. findcontrol namingcontainer of panel , not of child controls' namingcontainer. searching through control-collection of panel not work because rbl's inside of table inside of panel. therefore have loop tablerows rbl's. have look:

for each row tablerow in me.holidayquestionnairetable.rows      each cell tablecell in row.cells          each ctrl control in cell.controls              if typeof ctrl radiobuttonlist                 dim rbl radiobuttonlist = directcast(ctrl, radiobuttonlist)                 if rbl.selectedindex <> -1 andalso rbl.id <> "question18"                    dim value int32 = int32.parse(rbl.selectedvalue)                    total += value                    rblcount += 1 'count selected radiobuttonlists'                 end if              end if          next     next next 

if want use findcontrol-approach, have use namingcontainer of each radiobuttonlist , tablerow. work, static , error-prone:

dim question1 radiobuttonlist = directcast(me.holidayquestionnairetable.rows(0).findcontrol("question1"), radiobuttonlist) dim question2 radiobuttonlist = directcast(me.holidayquestionnairetable.rows(1).findcontrol("question2"), radiobuttonlist) dim question3 radiobuttonlist = directcast(me.holidayquestionnairetable.rows(2).findcontrol("question3"), radiobuttonlist)