您可以使用以下代码在datagridview中简单地创建一个过滤器

You can Simply make a filter in your datagridview using following code

Dim column As String = 'Your weekday column Name in Datagridview
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged

    Dim rows = ds.Tables(0).Select("Convert(" & column & ", 'System.String') LIKE '*" + ComboBox1.SelectedItem + "*'")

    Try
        DGTimeTable.DataSource = rows.CopyToDataTable
    Catch ex As Exception
    End Try
End Sub