Backspacenin kodları
Dim infield As String
If IsNull(Forms(GeciciFormAdi)(GeciciKontrolAdi)) Then Exit Sub
infield = Forms(GeciciFormAdi)(GeciciKontrolAdi)
If Len(infield) = 0 Then Exit Sub
infield = Left(infield, Len(infield) - 1)
Forms(GeciciFormAdi)(GeciciKontrolAdi) = infield