WPF MVVM模式下
ComboBoxEdit 的双向绑定
<dxe:ComboBoxEdit x:Name="CbFlow" IsTextEditable="False" VerticalAlignment="Center" Width="125"
ItemsSource="{Binding FlowModels}" DisplayMember="Name"
SelectedItem="{Binding CurrentFlowModel,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"/>