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将所有的事件,属性,都映射到ViewModel中。好处多多,以后开发尽量用这种模式。
解决方法:
使用System.Windows.Interactivity.dll,添加该dll到项目引用
1
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xmlns:i=
"clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
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ComboBox映射的代码:
<ComboBox VerticalAlignment="Center" HorizontalAlignment="Left" MinWidth="120" Margin="10,0,0,0" x:Name="cboTest" DisplayMemberPath="FamilyName" SelectedValuePath="IdFamily" IsReadOnly="True" ItemsSource="{Binding ListFamily}" SelectedValue="{Binding Path=ViewModel.SelectedFamilyNameID, Mode=TwoWay, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type UserControl}}}" Validation.ErrorTemplate="{x:Null}" Visibility="{Binding ComboBoxVisibility}" > <i:Interaction.Triggers> <i:EventTrigger EventName="SelectionChanged"> <i:InvokeCommandAction Command="{Binding FamilySelectionChangedCommand}" CommandParameter="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}},Path=DataContext}"/> </i:EventTrigger> </i:Interaction.Triggers> </ComboBox>
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