treeview

How to specify unique container styles for heterogenous hierarchies using SL3 and TreeView control

Hello, Just look for strategies that have been successful in rendering hierarchies that represent inheritance structures using SL3/4 TreeViews. I need to render certain nodes differently than others, depending upon what kind of container they are (a choice between things, or simply a list of related things, etc.) So far, I've been ver...

C# Why is a treeview node clicked when canceled is set to true?

In my winform application I have a treeview. To give the idea that a node is disabled I set the node's forecolor and I when the BeforeSelect fires I set e.cancel to true. However when a node's tag meets some criteria a node may be selected. So that's why I have a NodeMouseClick. But when a node may not be clicked I set the e.cancel to t...

CF TreeView - Selected Item when control looses focus.

Hello. I know that "HideSelection" property is missing in CF. But i still need to handle situation when an item is selected that it remains selected (greyed) even when the control looses focus. I have tried using this peace of code, but with no success. I get an exception in GetFocus() method and i dont know what im doing wrong. Any h...

TreeViewItem - Use ControlTemplate and HierarchicalDataTemplate together

I'm using HierarchicalDataTemplate in my TreeView, and I wanted to also overwrite the default template for the TreeViewItem so that when an item is selected, it only highlights the text, not including the icon next to it. <TreeView.ItemTemplate> <HierarchicalDataTemplate ItemsSource="{Binding Children}"> <Tr...

Silverlight 4 Drag and Drop Treeview

Does anyone have an example for any of the following scenarios. Given, these are all dynamically populated trees. Not using a Heirarchal data template, but by iterating through object collections manually and appending children at the appropriate level. Treeview1 has 3 levels, but items can only be reordered within their level. So, ...

WPF TreeView MouseDown

I've got something like this in a TreeView: <DataTemplate x:Key="myTemplate"> <StackPanel MouseDown="OnItemMouseDown"> ... </StackPanel> </DataTemplate> Using this I get the mouse down events if I click on items in the stack panel. However... there seems to be another item behind the stack panel that is the TreeViewItem - ...

How to Check all the nodes in tree view with minimum complexity

I need to check/select all the nodes in a tree view with minimum complexity. My tree view has 3 levels and many nodes in it. below is my code: <asp:TreeView ID="TreeView1" runat="server" DataSourceID="XmlDataSource1" ShowCheckBoxes="All" ShowExpandCollapse="true" <DataBindings> <asp:TreeNodeBinding DataMem...

Silverlight large TreeView + Busy Indicator

Hello, I'm working on a Silverlight interface that among other things needs to display a bunch of URLs and the HTML elements they contain in a TreeView control. The user may view the tree in two modes: read only (contains only the URLs and HTML elements selected by the user) and edit (contains everything). In order to do this I use two ...

How to obtain the panel within a treeview (WPF)

How can one obtain the panel that is used within a TreeView? I've read that by default TreeView uses a VirtualizingStackPanel for this. When I look at a TreeView template, all I see is <ItemsPresenter />, which seems to hide the details of what panel is used. Possible solutions: 1) On the treeview instance ("tv"), from code, do this:...

.NET TreeView causes application to crash when trying to check Parent node

I have a TreeView with check boxes, and when a user checks a child node, I want to go up the tree and check each parent. However, for some reason my application blows up whenever I touch the parent node. For the nodes in my tree, I've extended TreeNode to create my own objects with some data that I need to store in them, but I still r...

treeview loses data when page is being refreshed in asp.net

Hi, I have a treeview and I written a code for his "treeNodePopulate" event: protected void ycActiveTree_TreeNodePopulate(object sender, TreeNodeEventArgs e) { if (Application["idList"] != null && e.Node.Depth == 0) { string[] words = ((String)Application["idList"]).Split(' '); // Yellow Card details ...

Can't use attached property on combobox inside hierarchical datatemplate WPF

I'm hoping to use an attached property to assign a command to the selection changed event of a combobox that is embedded inside a treeview. I'm attempting to set the attached property inside the hierchical data template for the tree but the command is not set and does not fire when the item in the combobox is changed. I've found that ...

Formatting the parent and child nodes of a Treeview that is populated by a XML file

Hello Everyone, I'm very new to xml so I hope I'm not asking any silly question here. I'm currently working on populating a treeview from an XML file that is not hierarchically structured. In the xml file that I was given the child and parent nodes are defined within the attributes of the item element. How would I be able to utilize the...

Select Silverlight Treeview Item using MVVM Pattern

Can anyone tell me,Please include code, how to select a treeviewitem using the MVVM Pattern ...

LINQ2SQL: orderby note.hasChildren(), name ascending

I have a hierarchical data structure which I'm displaying in a webpage as a treeview. I want to data to be ordered to first show nodes ordered alphabetically which have no children, then under these nodes ordered alphabetically which have children. Currently I'm ordering all nodes in one group, which means nodes with children appear nex...

Having problem with treeview and Multilist Hierarchical data

I have the following 2 classes: public class DeviceGroup { public String Name { get; set; } public ObservableCollection<DeviceGroup> DeviceGroups { get; set; } public ObservableCollection<Device> Devices { get; set; } public DeviceGroup() { Name = String.Empty; Device...

Keeping the UI responsive while parsing a very large logfile

I'm writing an app that parses a very large logfile, so that the user can see the contents in a treeview format. I've used a BackGroundWorker to read the file, and as it parses each message, I use a BeginInvoke to get the GUI thread to add a node to my treeview. Unfortunately, there's two issues: The treeview is unresponsive to clicks ...

How to style a treeview in Expression Blend

(Using Expression Blend 4 RC, Silverlight 3) I have a treeview with several different item templates for different levels. When I open this project in Blend, it seems I can only really style the top-most DataTemplate (via right-click the TreeView in the Objects/Timeline view, Edit Additional Templates->Edit Generated Items (ItemTemplate...

Editable Tree View for MVC using jQuery

Hi All. I'm looking for an Editable tree view which easily lets me to make new items, rename and delete them. before i started using MVC i used the Obout tree which works quite well: http://www.obout.com/t_db/index.aspx but this isnt going to run in jQuery, so i'd like to know if someone has some experience in a jQuery solution. i g...

Display Hierarchial data in treeview using xml?

i need to dispaly the hierarchial data in TreeView. Which is getting from sql server into to the dataset in the form of [ID],[Name],[parentID]. create the Relation on the DataSet and generate the xml by using the xslt i want to bind it to the Tree i can able to do it for the menu control but not for the TreeView. ...