GridView高階應用問題,請教

2021-04-15 18:37:03 字數 1294 閱讀 2093

public pageno as new dropdownlist

protected sub gviewemployees_databound(byval sender as object, byval e as system.eventargs)

dim bottonpagerrow as gridviewrow = gviewemployees.bottompagerrow

dim bottonpagerno as new label()

bottonpagerno.text = "目前所在分頁碼(" & (gviewemployees.pageindex + 1) & "/" & gviewemployees.pagecount.tostring() & ")"

bottonpagerrow.cells(0).controls.add(bottonpagerno)

dim myliteral as new literal()

myliteral.text = "

"bottonpagerrow.cells(0).controls.add(myliteral)

'動態下拉框分頁

dim i as integer

dim pageno as new dropdownlist

pageno.id = "pageno"

pageno.autopostback = true

pageno.items.clear()

for i = 0 to gviewemployees.pagecount - 1

pageno.items.add(i + 1)

next

pageno.selecteditem.text = me.gviewemployees.pageindex + 1

addhandler pageno.textchanged, addressof pageno_textchanged

bottonpagerrow.cells(0).controls.add(pageno)

end sub

protected sub pageno_textchanged(byval sender as object, byval e as system.eventargs)

me.gviewemployees.pageindex = val(pageno.selecteditem.text) - 1

gviewemployees_databound(sender, e)

end sub 

為什麼在改變下拉框的內容時, gridview控制項的bottompagerrow中的下拉框不見了??

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