View界面绑定:
ItemsSource数据源为字典数据
DisplayMemberPath="Value" 为显示字典数据的值
SelectedValuePath="Key"字典数据的键与SelectedValue类型对应
<ComboBox Grid.Row="8" Grid.Column="1" ItemsSource="{Binding selGroupList}" SelectedIndex="0" SelectedValuePath="Key" DisplayMemberPath="Value" SelectedValue="{Binding Group,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" HorizontalAlignment="Left" Width="252" Height="25" IsEditable="True" Margin="5,3"></ComboBox>
界面效果: