hierarchicaldatatemplate

问题 I want to implememt a tree view with has the following structure..... [RootNode] <---- Root of tree --[ParentNode P1] <---- Object of ModelClass P1 ----[ChildNode C1] <----- Object of ModelClass C1 (have children of different type as well) ----[ChildNode C2] <----- Object of ModelClass C2 (have children of different type as well) ----[ChildNode C3] <----- Object of ModelClass C3 (have children of different type as well) --[ParentNode Q1] <---- Object of ModelClass Q1 ----[ChildNode B1] <-----

问题 I have a data-bound TreeView and I want to bind SelectedItem . This attached behavior works perfectly without HierarchicalDataTemplate but with it the attached behavior only works one way (UI to data) not the other because now e.NewValue is MyViewModel not TreeViewItem . This is a code snippet from the attached behavior: private static void OnSelectedItemChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e) { var item = e.NewValue as TreeViewItem; if (item != null) { item

问题 For my treeview I have two different classes that provide the ItemsSource. public class TreeViewModel : ViewModelBase { public ObservableCollection<NodeViewModel> Items { get; set; } } public class NodeViewModel : ViewModelBase { public string Id { get; set; } public string Name { get; set; } public ObservableCollection<NodeViewModel> Children { get; set; } } Now I want my TreeView to display the Items in TreeViewModel and show hierarchical data as provided by the NodeViewModel. Here is my

问题 I have a TreeView which uses a HierarchicalDataTemplate to bind its data. It looks like this: <TreeView x:Name="mainTreeList" ItemsSource="{Binding MyCollection}> <TreeView.Resources> <HierarchicalDataTemplate DataType="{x:Type local:MyTreeViewItemViewModel}" ItemsSource="{Binding Children}"> <!-- code code code --> </HierarchicalDataTemplate> </TreeView.Resources> </TreeView> Now, from the code-behind of say the main window, I want to get the current selected TreeViewItem . However, if I use

问题 I have two Many-To-Many with Payload entities as shown below: So, to make an Assembly stored in MasterPartNumber with a part number: MasterPartNumber.pn , I use the navigation property ParentBOMs , which is given by the relationship: MasterPartNumber.pnID = MasterPartsList.parentPnID . This gives me all the child pnIDs under that parent assembly. To get the child part numbers for that assembly , I use the ChildPn navigation property, defined by MasterPartsList.pnID = MasterPartNumber.pnID .

问题 I am trying to use a HierarchicalDataTemplate to recursively create expanders with items in them but when I use the HierarchicalDataTemplate I only get the first level of items displayed. Please let me know if you need anyore information. Heres the what the xaml would look like if I was writing by hand: <GroupBox Header="SectionHeader"> <StackPanel > <Expander VerticalAlignment="Top" Header="SubSectionHeader"> <StackPanel> <Expander VerticalAlignment="Top" Header="SubSectionHeader" Margin="10

问题 I am attempting to construct a dynamic WPF menu with different appearance for the top level items and the subsequent level items. In particular, I would like my top level items to display a 32 pixel square image on top of the menu caption, and the subsequent items to display a 16 pixel image in the regular Icon location. (I posted a related question some days ago, that one was using templates instead of styles). The XAML code below produces a menu with the following characteristics: . All

问题 I am totally new to using TreeView. My solution has two projects one called the Business Layer i.e a class library that gets data from the database and the other actual WPF application itself. I have two very simple tables in my Family database that have data as follows: I have four classes in my Business Layer project. 1) ChildrenModel.cs public class ChildrenModel { public string Name { get; set; } public int Age { get; set; } public double Income { get; set; } public string Address { get;

问题 I have scenario where my TreeView look like below: MainParent .>-Parent ...>--Child1 ...>--Child2 ...>--Child3 ...>--Child4 ...>--Child5 ......> Child1_Of_Child5 ...........>Child1(Child1_Of_Child5) ...........>Child2(Child1_Of_Child5) ......> Child2_of_Child5 ...........>Child1(Child2_Of_Child5) ...........>Child2(Child2_Of_Child5) I am able to bind ObservableCollection till Child1/Child2/../Child5 using HierarchicalDataTemplate. Though I am able to add Child1_Of_Child5 to Child5

问题 Following this question, I have another question about TreeView . What I already have is a TreeView with HierarchicalDataTemplate , in which I can change the HierarchicalDataTemplate of level2 (like explained in the question and the answer). What I want now, is to change the look of the expander of the Treeview . For this, I have defined a ControlTemplate named ctForTreeViewItem , and I use it like this: <Window.Resources> <ControlTemplate x:Key="ctForTreeViewItem" TargetType="{x:Type