0
我有一個GridView顯示結果，並從中刪除使用自動創建的刪除鏈接的結果。我的代碼後面刪除行和關聯的信息。是：沒有結果從GridView.SelectedRow.Cells（x）.Text返回？
Private Sub GridView1_RowDeleting(sender As Object, e As System.Web.UI.WebControls.GridViewDeleteEventArgs) Handles GridView1.RowDeleting
' The deletion of the individual row is automatically handled by the GridView.
Dim dbDelete As New pbu_housingEntities
' Remove individual from the bed.
Dim remove_bed = From p In dbDelete.Beds _
Where p.occupant = GridView1.SelectedRow.Cells(3).Text _
Where p.room = GridView1.SelectedRow.Cells(6).Text _
Where p.building = GridView1.SelectedRow.Cells(5).Text _
Order By p.id Descending _
Select p
remove_bed.First.occupant = ""
dbDelete.SaveChanges()
' Increase number of open spaces in room.
Dim update_occupancy = From p In dbDelete.Rooms _
Where p.room1 = GridView1.SelectedRow.Cells(6).Text
Where p.building = GridView1.SelectedRow.Cells(5).Text _
Select p
update_occupancy.First.current_occupancy = update_occupancy.First.current_occupancy - 1
dbDelete.SaveChanges()
End Sub
看來，它不能夠抓住正在被刪除的行，所以它總是給我錯誤「不設置到對象的實例對象引用」。