UWP C# TreeView getting selected node value

Question

private void szkloClick(Microsoft.UI.Xaml.Controls.TreeView sender, Microsoft.UI.Xaml.Controls.TreeViewItemInvokedEventArgs args)
        {
            TreeViewNode select = (szklo.SelectedNode as TreeViewNode);
                switch (select.Content.ToString())
            {
                case "33.2":
                    szklotekst.Text = "33.2";
                    break;
            }
        }

Following code gives me errors.
How to get the value of selected node and put it into TextBlock?

Answer 1

Hi,

Welcome to Microsoft Q&A!

In the code-behind, you could add this using statement at the top of the code:
using muxc = Microsoft.UI.Xaml.Controls;

In addition, the ItemInvoked event args give you access to the invoked item. The InvokedItem property has the node that was invoked. You can cast it to a TreeViewNode and get the data item from the TreeViewNode.Content property. As follows:

private void myTreeView_ItemInvoked(muxc.TreeView sender, muxc.TreeViewItemInvokedEventArgs args)  
        {  
           var node = args.InvokedItem as muxc.TreeViewNode;  
           myTextBlock.Text= node.Content.ToString();  
        }  

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