treeview

Expand just the root node of tree in XAML

Hello out there, is there any way to expand just the root node of a WPF tree in XAML? Thanks! Dirk ...

TreeView in wpf ... Is there a SelectedItemChanging event?

Hi all I am making use of a System.Windows.Controls.TreeView in a wpf application. Basically I need the equivalent of a SelectedItemChanging event so that I can cancel the the selection event of the treeview. Is there a way to do this? I was not able to find something called SelectedItemschanging event on a treeview. Thanks! ...

Treeview hide [+] [-] buttons

Does anyone know how to hide the [-] button for a treeview? The treeview will never be collapsed, and therefore I dont need the root node to have the collapse option. I know I could use a listview with a stye that indents the [0] element to act like a treeview root node. However the binding I'm using etc. kind of asks for a treeview, and...

Cannot update a treeview inside a usercontrol

I created a usercontrol with a treeview inside it. The treeview will be populated if I add nodes in the onload handler of the usercontrol. But after that(for example, I click a button in its parent form), the treeview will not refresh. I can see the nodes was updated in memory, but it just cannot display on the screen. I called refresh/u...

TreeViewItem.ItemContainerGenerator.ContainerFromItem inconsistent results

Hi, I have a TreeView on my page. It's bound to a collection of clients containing contracts, like: public class Client { public int ClientID { get; set; } public string Name { get; set; } public List<Contract> Contracts { get; set; } } public class Contract { public int ContractID { get; set; } public int ClientID { get; s...

C# Treeview maintain scroll position

I have a Treeview with a lot of nodes. If I switch a node, the scrollbar of the treeview is set to the bottom. To keep the switched node visible I use node.EnsureVisible(). But I don't like this method a lot, because it is confusing the end user. So I look further and now I use the code which is supplied here: http://stackoverflow.com...

How to set the background image of a TreeView Control? (VS 2008/.Net 3.5/C#/WinForms)

I have been doing some research and this seems to be not possible unless I start digging into InterOperabilty, i.e PInvoke and what not which is not really my kettle fish. I am re posting this question as I want to know if anyone has managed to do this yet? I use .png for all my images and get a professional to provide my images so I kn...

.NET UserControl inherit parent form background

I have a WinForms control inherited from TreeView and I want it to automatically adjust background color according to the form (also customized) background. How to make it? ...

Tree navigation with XML and XSLT

I have this tree structured XML (toc.xml): <?xml version="1.0" encoding="utf-8"?> <toc> <item name="top" key="4294967296" subkey="1"> <item name="child1" key="4294967611" subkey=""> <item name="child2-1" key="4294961611" subkey=""> <item name="child3-1" key="4294967613" subkey=""/> <item name="child3-2" key="...

Can i change the color of the tooltip displayed form Treeview

My code to display tooltip on mousehover is as follows e.Node.ToolTipText = Convert.ToString(sb); But this is displaying with the default color yellow. Can i change this to some other color. I did not find any property for that . If possible can any one give me an idea... Thanks & Regards, M.Dorababu. ...

How to get the target of a Drag Drop operation on a TreeViewDragDropTarget in Silverlight?

I've looked at the Drop and ItemDroppedOn Target event handlers but it appears that you can only access the source. The sender is the TreeViewDragDropTarget when I actually want to see the item in the TreeView that is being dropped on. ...

.NET TreeView doing Postback instead of Expand when called through AJAX and rendered using RenderControl

I have a page which is using a TreeView. The TreeView is placed within a user control for ease of code reuse. If the user control is loaded directly on to the page, by using a Register for the user control and then placing it on the page, then it works fine - the nodes are expandable. In order to avoid having extra code on the page load...

Silverlight TreeView ScrollViewer Issue

Hey SO, got a question about the TreeView control in Silverlight. I have an application which dynamically adds elements to a treeview. Some of the elements are long enough to require horizontal scrolling. When they are added to the treeview, my treeview remains correctly all the way scrolled left so you have to scroll to see the end of ...

TreeView Multibinding with multiple classes

I was reading this post StackOverFlowPost but I think I need more than that. Here is my situation. I am trying to fill a TreeView with items from a class with two different types ObservableCollection's. Here is the class definition: public class User : INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged...

How to generate a treeview in ASP.NET?

How to generate a tree view in asp.net? In my asp.net project i need a tree view like structure, the format given below ...

change OpenNode or NodeHasChildren + graphic in TreeView VS2010 VB.Net

The subject sais it all: Is there any way to change the "+" icons that appear in front of nodes that have children? I'd rather have these fancy Win7 triangles ">" and "v" without having to buy 3rd party treeview classes. ...

.Net Treeview Event Handling

I am in the process of migrating a VB6 app to .Net and we must provide like-for-like functionality at all times. In one form is a treeview with checkboxes that has three levels of nodes. The first level serves only to group the next level down and they are not checkable. The second level nodes are checkable by the user and when checked o...

Bolding TreeNode Text in Web Control

I have a web application with a TreeView/TreeNode I want it so when I select a topic it bolds the text. I can set up an OnSelectedNodeChanged event in the ASPX page and change the text to bold there. But I need to be able to do it from Javascript with the node set to Navigate mode rather than Select mode. I'm trying to do it through cal...

How to avoid winforms treeview icon changes when item selected

Hi, I'm experimenting with a treeview in a little C#/Winforms application. I have programatically assigned an ImageList to the treeview, and all nodes show their icons just fine, but when I click a node, its icon changes (to the very first image in the ImageList). How can I get the icon to remain unchanged? BTW: The "SelectedImageIndex...

WPF ListView with TreeView as ItemTemplate

Hi, I'm currently trying to create a ListView with a TreeView as ItemTemplate (a list of TreeViews). Furthermore, I need to bind a different XmlDataProvider on each one of them so they can each have a different XML source. I already know how to bind a XML source to a TreeView, but I don't know how to create a XMLDataProvider for each L...