WPF TreeView Binding

最新推荐文章于 2025-07-21 09:07:03 发布

最新推荐文章于 2025-07-21 09:07:03 发布 · 345 阅读

Bind Treeview In WPF

TreeView Xmal

   <TreeView x:Name="TvWorkItem" Grid.Column="0" Grid.Row="2" Background="Black"
                  ItemsSource="{Binding MenuDataSource}" 
                  SelectedItemChanged="TreeView_OnSelectedItemChanged">

            <TreeView.ItemTemplate >
                <HierarchicalDataTemplate ItemsSource="{Binding ChildItems}">
                    <TextBlock Text="{Binding Name}" Background="Black" >
                         <TextBlock.Style >
        <Style TargetType="TextBlock">
            <Style.Triggers>

               <DataTrigger Binding="{Binding HasOutStandingTask}" Value="true"> 
                   <Setter  
                           Property="Foreground" 
                           Value="DarkOrange" />
                   <Setter Property="FontSize" Value="16"></Setter>
               </DataTrigger>
                <DataTrigger Binding="{Binding HasOutStandingTask}" Value="false"> 
                   <Setter  
                           Property="Foreground" 
                           Value="Aqua" />
               </DataTrigger>
                
            </Style.Triggers>
        </Style>
    </TextBlock.Style>

                    </TextBlock>
                </HierarchicalDataTemplate>
            </TreeView.ItemTemplate>
        </TreeView>

ViewModel

 private ObservableCollection<MenuItem> _menuDataSource;
        public ObservableCollection<MenuItem> MenuDataSource
        {
            get
            {
                if (_menuDataSource == null)
                    _menuDataSource = MenuOperation.LoadMenu();

                return _menuDataSource;
            }
            set
            {
                _menuDataSource = value;
                RaisePropertyChanged(() => MenuDataSource);
            }
        }

Entity

  public class MenuItem
    {
        public Guid Id { get; set; }
        public string Name { get; set; }
        public string OriName { get; set; }
        public bool HasOutStandingTask { get; set; }
        public ObservableCollection<MenuItem> ChildItems { get; set; }
        public bool IsWorkItemType { get; set; }
        public WorkItemType WorkType { get; set; }
        public bool IsWorkItem { get; set; }
    }