Dim r As Row = currentTable.Current '当前行
Dim c AS integer =currentTable.Colsel ‘当前列位置
Dim cn As String = currentTable.Cols(c) ’当前列名
if r.Index < currentTable.Rows.Count -1 Then ‘如果不是最后一行
dim r2 as row = currentTable.Rows(r.Index - 1) ’取得上一行
r1(cn) = r2(cn)
End if