how insist non-static postback

i combined unparalleled page (with formula behind .vb) combined open intfileid integer

in page bucket i check querystring distribute accessible set intfileid = 0.

public intfileid integer = 0

protected servant page_load(byval sender object, byval e system.eventargs) handles me.load
    page.ispostback then
        request.querystring("fileid") zero then
            intfileid = cint(request.querystring("fileid"))
        finish if

        intfileid > 0 then
            getfile(intfileid)
        finish if
    finish if
end sub

private servant getfile()
    'uses intfileid collect specific record database set's several textbox.text
end sub

there click eventuality quarrel symbol inserts updates record formed value intfileid variable. i need means insist value postback work.

the page simply inserts updates record sql database. i'm controlling gridview,formview,detailsview, any rad form vigilant persists pivotal value itself i don't wish any them.

how i insist value set intfileid but formulating something html presumably changed.

[edit] altered page_load viewstate insist intfileid value

protected servant page_load(byval sender object, byval e system.eventargs) handles me.load
    page.ispostback then
        request.querystring("fileid") zero then
            intfileid = cint(request.querystring("fileid"))
        finish if

        intfileid > 0 then
            getfile(intfileid)
        finish if

        viewstate("intfileid") = intfileid
    else
        intfileid = viewstate("intfileid")
    finish if
end sub