gridview如何改变行显示的内容以及设置单元格的是否允许编辑

   ds.Tables(0).Columns.Add("colunmname", GetType(String)) 'ds代表数据源
        For i As Integer = 0 To ds.Tables(0).Rows.Count - 1
            If CBool((ds.Tables(0).Rows(i)("colunmname"))) Then '更改那个字段的显示
                ds.Tables(0).Rows(i)("colunmname") = "Y"
            Else
                ds.Tables(0).Rows(i)("colunmname") = "N"
            End If
        Next

        Me.ds.AcceptChanges()

        Me.gridviewname.DataSource = Me.ds.Tables(0)

        'edit cell
        Dim dr As Data.DataRow
        For i As Integer = 0 To ds.Tables(0).Rows.Count - 1
            dr = ds.Tables(0).Rows(i)
            If CType(dr("colunmname"), Boolean) = True Then
                Me.gridviewname.Rows(i).Cells(2).ReadOnly = False '指定单元格的只读属性
            End If
        Next