It will give you a knowledge to create simple Tree, customization, Template and Binding.
Menus in WPF
It mainly focuses on how to show contents in the tree view. This article will help you to understand the basics of tree view and also gives you deep knowledge to show content on tree according to your requirement. I had to use tree view in one of my projects where I had to show image and text as most of tree has in windows.
This problem started my journey to learn features provided by WPF. At the start of my journey, I found many difficulties and sometimes I said Windows application contains more user friendly controls to work with, but with the passage of time I found WPF controls more user friendly.
If you want to create a simple tree then WPF provides you an easy way draw tree. If you want to populate tree from code behind, then simply place your tree on form and add tree item according to your tree hierarchy. If you want to add some other controls with the content e. You can also create class derived from TreeViewItem and change its Header according to your requirement.
If you want to create header from code behind, then WPF will not disappoint you. You can change header template very smartly. You can also customize TreeViewItem by writing a new derived class for custom item. It is also pretty easy. Just create header template and assign it to Header property if TreeViewItem.
If the style of all the elements is the same, then it is better to create header template at once. For creating general TreeViewItem item template, create Template resource at application level, window level or at control level resource.
It is a very interested point here that I did not pass Image path for each country, but TreeView shows flag with each country. I achieved by writing custom converter CustomImagePathConverter. You can associate a value converter with binding.
In this example, I am getting image path from the country name, as you can see in code. You can easily create template from code behind. FrameworkElementFactory provides you a facility to create templates. Let's see how can we achieve this exciting feature.
You can easily get the child items from the template. Just for the example, I am showing you how to get the selected check boxes from the tree view. WPF provides you many ways to populate tree. You can directly add your object as a TreeViewItem in the tree and WPF gives respect to your objects and display it as you want. You just need to tell him which field will be shown in item.
For populating custom object in tree, you just need to create template for your object. I used HierarchicalDataTemplate for designing template. After creating template, you just need to add custom object from your code behind file, as you can see code below.
I am just putting parent object in the tree. But when you will run this code, you will also see child countries are also being shown. You can also create template for your object from code behind file, as we created in previous example. The tricky part here, how can we add custom objects in the hierarchical way? Because using XAML we can write create hierarchical template. We can also create hierarchical template using code behind, but in this example I am not doing that, I am achieving the solution from other way.The Windows Forms TreeView control displays a hierarchy of nodes, similar to the files and folders displayed in the left pane of Windows Explorer.
WPF Menus A Complete Tutorial
By setting the ContextMenuStrip property, you can provide context-sensitive operations to the user when they right-click the TreeView control. By associating a ContextMenuStrip component with individual TreeNode items, you can add a customized level of shortcut menu functionality to your TreeView controls.
Instantiate a TreeView control with the appropriate property settings, create a root TreeNodeand then add subnodes. You will need to customize the menu choices to those that fit the TreeView you are developing. Additionally, you will want to write code to handle the Click events for these menu items. Skip to main content. Exit focus mode. To associate a shortcut menu with a TreeNode programmatically Instantiate a TreeView control with the appropriate property settings, create a root TreeNodeand then add subnodes.
When this property is set, the shortcut menu will be displayed when you right-click the node. Add "phoneList. Add "resume. Yes No. Any additional feedback? Skip Submit.
You could define the ContextMenu s in several styles and select the style using a ItemContainerStyleSelectorbased on those attributes.
Or you could directly specify an ItemContainerStyle and select the appropriate ContextMenu using triggers. Learn more. Asked 10 years, 7 months ago. Active 3 years, 5 months ago. Viewed 38k times. Ian Ringrose Active Oldest Votes. Resources["SolutionContext"] as System. ContextMenu; break; case "Folder": SolutionTree.
Resources["FolderContext"] as System. Sometimes it is just easier to do it in code rather than xaml. I'm not a purest and this works well. Thanks Mr T. Right clicking does not select the node.The parents of a node called File could be New, Open and Add. A Context Menu is a menu that only appears when you click some element with the right button of your mouse.
First we have to name the TreeView in order to access their elements in procedural code. This event will allows us to show the Context Menu each time the user clicks an item in the TreeView. Finally we can do the rest in procedural code. Code 3 — C code.
How to: Attach a ShortCut Menu to a TreeView Node
This function must have the same name as given in Code 2 to the property SelectedItemChanged. In line 2 we use the name that we gave to the TreeView in Code 2 in order to have access to the item that is currently selected. I just want to focus on three aspects in this function.
First in line 3 were i use the special word as. In our case the event Click in the menuItem is handle by the function OptionClick. The final aspect that i want to focus is form line 42 to This behaviour is here in case you add a new item to the TreeView when you click Insert. We could define a special menu for this case but i decided that this new item in the TreeView will have no ContextMenu.
So the default is doing just this, creating a new ContextMenu and then set is Visibility to Hidden. Code 4 — SelectedClick Function. Finally we have the function responsible to handle the click event of the Insert button on the context menu. Unboxing simply means that you take a object and you convert this object to is type.
Code 5 — OptionClick Function. You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account.
You are commenting using your Facebook account. Notify me of new comments via email. Notify me of new posts via email. Create a free website or blog at WordPress. About Subscribe to RSS. Windows; using System. Add new MenuItem. Add menuItem ; break; case "New": selectedItem.WPF TreeView control displays hierarchical data in a parent and children form.
Introducing WPF TreeView A TreeView represents data in a hierarchical view in a parent child relationship where a parent node can be expanded or collapsed. The left side bar of Windows Explorer is an example of a TreeView.
The Width and Height properties represent the width and the height of a TreeView. The Name property represents the name of the control, which is a unique identifier of a control. The Margin property tells the location of a TreeView on the parent control.
The HorizontalAlignment and VerticalAlignment properties are used to set horizontal and vertical alignments. The following code snippet sets the name, height, and width of a TreeView control. The code also sets horizontal alignment to left and vertical alignment to top. The Header property is the text of the item that is displayed on the view. The following code snippet adds a parent item and six child items to a TreeView control. By default, the parent node is collapsed but when you click on it, the expanded view looks like Figure 1.
We can add items to a TreeView from the code. Let's change our UI and add a TextBox and a button control to the page. The final UI looks like Figure 2. On Add Item button click event handler, we are going to add a new item to the first parent node of the TreeView. Add method. We can use TreeView. Remove or TreeView.
RemoveAt method to delete an item from the collection of items in the TreeView. The RemoveAt method takes the index of the item in the collection. Now, we modify our application and add a new button called Delete Item. The XAML code for this button looks like below. The button click event handler looks like following. On this button click, we find the index of the selected item and call TreeView.
RemoveAt method as following. A TreeView control is placed inside a StackPanel that contains a ScrollVewer control so when the width of height of the panel is more than the visible area, the scroll viewer gets active and provides horizontal and vertical scrolling functionality. Alternatively, we can use System. Resources and set Style property.Sharing a simple example wherein we are generating dynamic menuitems for the context menu based on the node or treeviewitem selected in the treeview.
I love working in and sharing everything about Microsoft. NET technology! View all posts by Nishant Rana. Hi, can you upload or send me the project? I trying to load the Packages. I will appreciate it. Like Like. You should also check to see if item is null and if so, return before attempting to do anything further.
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Creating dynamic ContextMenu for TreeView in WPF
Notify me of new comments via email. Notify me of new posts via email. This site uses Akismet to reduce spam. Learn how your comment data is processed. Skip to content. Share this: Email Tweet. Like this: Like Loading Author: Nishant Rana I love working in and sharing everything about Microsoft. Thank you! Have you an idea to do the ame thing using MVVM pattern? You should also check to see if item is null and if so, return before attempting to do anything further, Like Like.
Please share your thoughts Cancel reply Enter your comment here Fill in your details below or click an icon to log in:.For more information about visual trees, see Trees in WPF. For more information about dependency properties, see Dependency Properties Overview. Select any object in the Visual Tree pane, and the Properties of Name : Type pane is automatically updated to show the properties for that object.
In the Visual Tree pane, type the string you want to search for in the Search box. The WPF Tree visualizer immediately finds the first object in the visual tree that matches the string you have typed. Type more characters to find a more accurate match.
In the Properties of Name : Type pane, type the string you want to search for in the Filter box. The WPF Tree visualizer immediately finds the properties that match the string you have typed; now, the list displays only those properties matching the string you have typed. Type more characters to find a more-accurate match. You may also leave feedback directly on GitHub.
Skip to main content. Exit focus mode. Is this page helpful? Yes No. Any additional feedback? Skip Submit. Send feedback about This product This page. This page. Submit feedback. There are no open issues. View on GitHub.