原文:总结:WPF中模板需要绑定父级别的ViewModel该如何处理
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<ListBox ItemsSource="{Binding ClassCollection}">
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<ListBox.ItemContainerStyle>
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<Style TargetType="{x:Type ListBoxItem}">
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<Setter Property="Height" Value="30"/>
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<Setter Property="Template">
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<Setter.Value>
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<ControlTemplate TargetType="ListBoxItem">
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<Grid>
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<Border x:Name="ItemBackground"
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Background="{TemplateBinding Background}"
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BorderBrush="{TemplateBinding BorderBrush}"
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BorderThickness="{TemplateBinding BorderThickness}"/>
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<CheckBox Content="{Binding Item2.Name}" IsChecked="{Binding Item1,Mode=TwoWay}">
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<i:Interaction.Triggers>
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<i:EventTrigger EventName="Checked">
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<i:InvokeCommandAction Command="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type local:Control_CodeAutoGeneration}}, Path=DataContext.RelayCommand}"
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CommandParameter="ClassSelectionChanged"/>
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</i:EventTrigger>
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<i:EventTrigger EventName="Unchecked">
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<i:InvokeCommandAction Command="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type local:Control_CodeAutoGeneration}}, Path=DataContext.RelayCommand}"
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CommandParameter="ClassSelectionChanged"/>
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</i:EventTrigger>
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</i:Interaction.Triggers>
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</CheckBox>
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</Grid>
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</ControlTemplate>
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</Setter.Value>
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</Setter>
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</Style>
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</ListBox.ItemContainerStyle>
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<i:Interaction.Triggers>
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<i:EventTrigger EventName="SelectionChanged">
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<i:InvokeCommandAction Command="{Binding RelayCommand}" CommandParameter="ClassSelectionChanged"/>
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</i:EventTrigger>
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</i:Interaction.Triggers>
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</ListBox>
其中、需要在代码
<i:InvokeCommandAction Command="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type local:Control_CodeAutoGeneration}}, Path=DataContext.RelayCommand}" CommandParameter="ClassSelectionChanged"/>
处绑定的父级别,Control_CodeAutoGeneration是我自定义的控件的ViewModel里面的RelayCommand命令,通过如上传递可以调用到父级别的ViewModel的绑定属性或命令