TwoWay绑定WPF Treeview

Question

WPF初学者。

我设法使用本文末尾显示的代码将TreeView控件绑定到DataViewManager。最初填充TreeView控件时一切正常，但我想实现双向绑定，以便我可以使用文本框过滤掉不需要的TreeView项。 我的问题是如果树形视图没有更新 我试图使用这样的东西：

        private void SearchTree_TextChanged(object sender, TextChangedEventArgs e)
        {
            if(SearchTree.Text.Length>0)
            Command.dvm.DataViewSettings["Categories"].RowFilter = "CategoryName LIKE '%"+SearchTree.Text+"%'";
        }

任何人都可以帮助我找出我在这里做错了什么吗？！

的Xaml：

...
    <UserControl.Resources>
        <ObjectDataProvider 
            x:Key="dataVMProvider" 
            MethodName="CreateDataVM" 
            ObjectType="{x:Type local:DataVMCreator}" 
            />


        <DataTemplate x:Key="InstancesTemplate">
            <TextBlock Text="{Binding InstanceUID}"/>
        </DataTemplate>

        <HierarchicalDataTemplate 
            x:Key="SymbolsTemplate"
            ItemsSource="{Binding Symbols2Instances}"
            ItemTemplate="{StaticResource InstancesTemplate}"
            >
            <TextBlock Text="{Binding SymbolName}"/>
        </HierarchicalDataTemplate>

        <HierarchicalDataTemplate
            x:Key="FamiliesTemplate"
            ItemsSource="{Binding Families2Symbols}"
            ItemTemplate="{StaticResource SymbolsTemplate}"
            >
            <TextBlock Text="{Binding FamilyName}"/>
        </HierarchicalDataTemplate>

        <HierarchicalDataTemplate
            x:Key="CategoriesTemplate"
            ItemsSource="{Binding Categories2Families}"
            ItemTemplate="{StaticResource FamiliesTemplate}"
            >
            <TextBlock Text="{Binding CategoryName}"/>
        </HierarchicalDataTemplate>

    </UserControl.Resources>

...

        <TreeView 
            x:Name="ElementsTree" 
...

            DataContext="{StaticResource dataVMProvider}"
            ItemsSource="{Binding Categories}"
            ItemTemplate="{StaticResource CategoriesTemplate}"
        />

DataViewManager来自：

    public static class DataVMCreator
    {
        public static DataViewManager CreateDataVM()
        {
            return Command.dvm;
        }
    } 

Answer 1

对function remove_my_metaboxes() { remove_meta_box( 'categorydiv','post','normal' ); // Categories Metabox remove_meta_box( 'submitdiv','post','normal' ); // Categories Metabox remove_meta_box( 'postcustom','page','normal' ); // Custom Fields Metabox remove_meta_box( 'postcustom','post','normal' ); // Custom Fields Metabox remove_meta_box( 'commentstatusdiv','page','normal' ); // Comments Metabox remove_meta_box( 'commentsdiv','post','normal' ); // Comments Metabox remove_meta_box( 'trackbacksdiv','page','normal' ); // Talkback Metabox remove_meta_box( 'trackbacksdiv','post','normal' ); // Trackback Metabox remove_meta_box( 'authordiv','page','normal' ); // Author Metabox remove_meta_box( 'authordiv','post','normal' ); // Author Metabox remove_meta_box( 'postexcerpt','post','normal' ); // Excerpt Metabox remove_meta_box( 'postexcerpt','page','normal' ); // Excerpt Metabox remove_meta_box( 'revisionsdiv','post','normal' ); // Revisions Metabox remove_meta_box( 'slugdiv','page','normal' ); // Slug Metabox remove_meta_box( 'slugdiv','post','normal' ); // Slug Metabox remove_meta_box( 'formatdiv','post','normal' ); // Formats Metabox remove_meta_box( 'postimagediv','post','normal' ); // Featured Image Metabox remove_meta_box( 'tagsdiv-post_tag','post','normal' ); // Tags Metabox remove_meta_box( 'commentstatusdiv','post','normal' ); // Comments Status Metabox } add_action('admin_menu','remove_my_metaboxes'); 的{​​{1}}：

尝试此绑定

DataContext