Using XAMLĬreate your hierarchical template as you created in the previous example. You just need to create a template for your items as you create in other binding controls. You can also bind your tree with any source as you can bind DataGrid, ListView, etc. So you need to register StatusChanged event, which fires after the status change and you can get container after that. So we cannot get container in the next line after adding object. When we add custom object in the TreeView ItemContainerGenerator starts to generate container in separate thread. ItemContainerGenerator generates the containers for each custom object. (TreeViewItem)(area) įoreach (Country country in area.Countries)Īs you can see in code after adding setting template, I have registered event. If ( = GeneratorStatus.ContainersGenerated) Void ItemContainerGenerator_StatusChanged( object sender, EventArgs e) New EventHandler(ItemContainerGenerator_StatusChanged) TvMain.ItemTemplate = GetHeaderTemplate() Image.SetBinding(Image.SourceProperty, new Binding() Image.SetValue(Image.MarginProperty, new Thickness( 2)) StackPanel.SetValue(StackPanel.OrientationProperty, Orientation.Horizontal) įrameworkElementFactory checkBox = new FrameworkElementFactory( typeof(CheckBox)) ĬheckBox.SetValue(CheckBox.NameProperty, " chk") ĬheckBox.SetValue(CheckBox.TagProperty, new Binding()) ĬheckBox.SetValue(CheckBox.MarginProperty, new Thickness( 2)) įrameworkElementFactory image = new FrameworkElementFactory( typeof(Image)) I achieved by writing custom converter CustomImagePathConverter.ĭataTemplate dataTemplate = new DataTemplate() įrameworkElementFactory stackPanel = new FrameworkElementFactory( typeof(StackPanel)) It is a very interested point here that I did not pass Image path for each country, but TreeView shows flag with each country. In this example, I have created resource at control level and set the TargetType=”TreeViewItem” and also set the “HeaderTemplate” property of the TreeViewItem. Using XAMLįor creating general TreeViewItem item template, create Template resource at application level, window level or at control level resource. Because the problem with the last example was for the same design, we add template for each tree item. If the style of all the elements is the same, then it is better to create header template at once. Stack.Orientation = Orientation.Horizontal Private void CreateTreeViewItemTemplate() Public class ImageTreeViewItem : TreeViewItem Just add TreeView control on your page and add items in either using XAML or from code behind. If you want to create a simple tree then WPF provides you an easy way draw tree. This article will cover the following 6 main areas: 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. This problem started my journey to learn features provided by WPF. 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 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. It mainly focuses on how to show contents in the tree view. It will give you a knowledge to create simple Tree, customization, Template and Binding. This article describes the use of TreeView control provided by WPF.
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