DataGridView ComboBox列

Question

我有一个由数据集填充的datagridview。我试图添加3个包含组合框的列和它们自己的数据源，这也是一个数据集。

在此处删除CRUD控件是我尝试添加组合框列的方法。

Private Sub GenComboBoxColumns()
    Dim priorityTypesDS As New DataSet()
    Dim serviceBoardsDS As New DataSet()
    Dim serviceTypesDS As New DataSet()

    priorityTypesDS = _objhost.GetDataSet("SELECT DISTINCT abc FROM foo ORDER BY abc")
    serviceBoardsDS = _objhost.GetDataSet("SELECT DISTINCT abc FROM bar ORDER BY abc")
    serviceTypesDS = _objhost.GetDataSet("SELECT DISTINCT abc, xyz FROM foobar ORDER BY xyz")


    If dataGridView_monitorMapping IsNot Nothing AndAlso dataGridView_monitorMapping.Rows.Count > 0 Then
        Dim col_priority As New DataGridViewComboBoxColumn
        Dim col_serviceBoard As New DataGridViewComboBoxColumn
        Dim col_serviceType As New DataGridViewComboBoxColumn

        col_priority.DataSource = priorityTypesDS
        col_serviceBoard.DataSource = serviceBoardsDS
        col_serviceType.DataSource = serviceTypesDS

        dataGridView_monitorMapping.Columns.AddRange(col_priority, col_serviceBoard, col_serviceType)

    End If

End Sub

然而，我实际上生成了许多列，这些列在datagridview中包含的视图区域（超过7列！）时，它们应该只有3个。

为了帮助您了解我要完成的任务，请查看下面的示例。考虑一个组合框及其各自的选项（foo * Bar * FooBar *）=＆gt;一个有3种选择的组合框。

---------------------------------------------------------------------------------
|Apple          | (plant*animal) |  (blue*green*red*etc)  |     (smooth*rough*) |
|Steak          | (plant*animal) |  (blue*green*red*etc)  |     (smooth*rough*) |
|Peach          | (plant*animal) |  (blue*green*red*etc)  |     (smooth*rough*) |
---------------------------------------------------------------------------------

一如既往;非常感谢帮助！ =）