ComponentOne Basic Library for UWP
Getting the Text or Value of the SelectedItem in a TreeView
UWP Edition Basic Library > TreeView for UWP > TreeView for UWP Task-Based Help > Getting the Text or Value of the SelectedItem in a TreeView

The Header property will return the values contained in your C1TreeViewItems, you can get the string value using the following code:

Visual Basic
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Dim item As C1TreeViewItem = _tree.SelectedItem
_textBlock.Text = item.Header.ToString()

C#
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C1TreeViewItem item = _tree.SelectedItem;
_textBlock.Text = item.Header.ToString();

What You've Accomplished

Run your application and observe that the Header property will return the values contained in your C1TreeViewItems.

See Also