![]() ![]() We can use the ObjectInTreeView Control in XAML or in code. Private static string GetValueAsString( object value) KeyValueNode.Value = GetValueAsString(kv.Value) ĭictionary dictionary = (Dictionary)item Private static void BuildTree( object item, TreeNode node) Var serialized = (obj) ĭictionary dic = jss.Deserialize>(serialized) JavaScriptSerializer jss = new JavaScriptSerializer() Public static TreeNode CreateTree( object obj) Public partial class ObjectInTreeView : UserControl The WPF Control displaying the tree will be: Thanks to this article (Which showed how to display JSON in a WinForms tree view) for pointing me in the right direction.īy the way, we can use the same solution to visualize a JSON document in a WPF TreeView. Populating Nodes by data binding - Bound Mode Nodes can be populated in bound mode includes following steps. ![]() Once in JSON format, we can use JavaScriptSerializer (in ) to deserialize the JSON and get a data structure we can easily iterate over and populate the tree view. TreeView can be populated either with the data source by using a ItemsSource property or by creating and adding the TreeViewNode in hierarchical structure to Nodes property. Serializing an object to JSON will do exactly what we need – Go over the object’s properties and fields with reflection, turning them into a “tree-like” data structure. You probably know it and use it every day – Yes, it’s Newtonsoft.Json. Luckily, a library that does exactly that, already exists. You might have virtual properties, abstract classes and generics. And so on.Īs a matter of fact, going over the properties and fields of an object with Reflection is not that easy. Then, we will need to go to the children of each of those properties and add them as well. To do that, we will need to go over each property of the object and add it to the tree. Instead, we use the HierarchicalDataTemplate, which allows us to template both the tree node itself, while controlling which property to use as a source for child items of the node. Even though I found some similar solutions, they weren’t what I wanted or simply didn’t work.Īfter some research and coding, spending much more than the intended 10 minutes, I came up with a solution I’m pretty pretty happy with (*self pat on the back). The WPF TreeView supports data binding, like pretty much all other WPF controls does, but because the TreeView is hierarchical in nature, a normal DataTemplate often won't suffice. I figured there would be an easy solution I can google and copy-paste, spending no more than 10 minutes on the whole thing. The following example demonstrates how to bind a TreeView to hierarchical data and use a HierarchicalDataTemplate to specify the ItemsSource for each TreeViewItem. NET object, and the result should be a tree view displaying the object’s properties and fields. To bind the RadTreeView to a collection use its ItemsSource property and define HierarchicalDataTemplate that are needed to display the data from the collection. The debugger’s data tip control is exactly what I needed. NET object’s properties in an expandable tree view? This is something we constantly use inside the Visual Studio debugger: ![]() I recently encountered an interesting challenge: How to display a. ![]()
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