在ListBox中添加ToggleButton(有IsChecked属性)

Xaml文件:

<ListBox Name="lbTasteSet" ScrollViewer.HorizontalScrollBarVisibility="Disabled"
  ItemsSource="{Binding TasteSet}" Style="{StaticResource MultipleToggleButtonList}"
  SelectionMode="Multiple">
  <i:Interaction.Triggers>
    <i:EventTrigger EventName="SelectionChanged">
    <i:InvokeCommandAction Command="{Binding GetTasteCommand}"
               CommandParameter="{Binding ElementName=lbTasteSet}"></i:InvokeCommandAction>
    </i:EventTrigger>
  </i:Interaction.Triggers>
  <ListBox.ItemsPanel>
    <ItemsPanelTemplate>
      <WrapPanel IsItemsHost="True" ItemHeight="30" ItemWidth="60"></WrapPanel>
    </ItemsPanelTemplate>
  </ListBox.ItemsPanel>
</ListBox>

Xaml中用到的Style:因为ToggleButton相当于ListBoxItem的Content,这时要使togglebutton的IsSelected属性与ListBox的SelectedItem的IsSelect属性关联则需要在Style中设置下划线所示Setter

<Style TargetType="ListBox" x:Key="MultipleToggleButtonList">
  <Setter Property="ItemContainerStyle">
  <Setter.Value>
    <Style TargetType="ListBoxItem">
    <Setter Property="IsSelected" Value="{Binding Path=IsSelected,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"></Setter>

    <Setter Property="Template">
      <Setter.Value>
        <ControlTemplate>
          <Border Background="Transparent" Margin="{TemplateBinding Padding}">
          <telerik:RadToggleButton Content="{Binding Path=Taste.Name}"
            IsChecked="{Binding Path=IsSelected,Mode=TwoWay,RelativeSource={RelativeSource TemplatedParent}}">                       </telerik:RadToggleButton>
          </Border>
        </ControlTemplate>
      </Setter.Value>
    </Setter>
    </Style>
  </Setter.Value>
  </Setter>
</Style>

ViewModel:用到了(lanmuda)表达式

/// <summary>
/// 获取选择的口味
/// </summary>
public void ExecuteGetTaste(ListBox lb)
{
  //TasteItemViewModel model = lb.SelectedItem as TasteItemViewModel;
  List<Taste> selectedTastes= this.TasteSet.Where(i => i.IsSelected == true).Select(i => i.Taste).ToList();
  selectedTastes.Distinct();
  string strTaste = "";
  foreach (var item in selectedTastes)
  {
    strTaste += "["+item.Name+"]";
  }
  this.DishTaste = strTaste;
}

原文地址:https://www.cnblogs.com/gnsds/p/3671955.html