Combobox selected value return DataRowView

I set combobox.datasource to a dataview item (so that it binds to a table), When I get return value from combobox.selectedvalue. Error was returned bcos it is of type "system.data.datarowview"

I don't know why commonly its return value as text

The code :

 If ldstList.Tables(0).Rows.Count <> 0 Then
                        With CbStatus
                            .DataSource = ldstList.Tables(0)
                            .DisplayMember = "CardStatus"
                            .ValueMember = "StatusID"
                        End With
                    End If

If Integer.Parse(CbStatus.SelectedValue) > 0 Then
    GridLoad(Integer.Parse(CbStatus.SelectedValue))
End If