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We can use the ObjectInTreeView Control in XAML or in code. The ItemsSource can be specified for TreeView control as a data source and then specify a HeaderTemplate and ItemTemplate to define the TreeViewItem content. Private static string GetValueAsString( object value) I fill a TreeView (WPF) in the code and want to use some icons in the items. Here we will see in code examples of how to bind the data source to WPF Treeview ItemsSource using C and populate fields from the data source in Treeview. 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: I use VB as i am much more confident in it - which drastically limited the code examples out there. Shows how to bind the selected item of a WPF TreeView using the MVVM pattern - daspn/treeview-with-mvvm. I have been looking for a some working code for the last couple of days to set up a treeview in my WPF app to display some database data. (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. Shows how to bind the selected item of a WPF TreeView using the MVVM pattern - daspn/treeview-with-mvvm. 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.
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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.
/ /// /// The item to search for.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). This can be a TreeView or a TreeViewItem. I figured there would be an easy solution I can google and copy-paste, spending no more than 10 minutes on the whole thing. NET object, and the result should be a tree view displaying the object’s properties and fields. 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.