Получить текст node(item) treeview в событии selecteditemchange

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Hello to all

First of all I am from Iran and I Cant Speak English Very Good sorry for this.

I made something like OpenFileDialog in Win.Form

and work correctly.

after  for better User Interface I try to make it in WPF

I am use TreeView and other control for made it in both platform(Winform,WPF)

in WPF I want to get text of Tree view Item For Compare,in winform i could do this by below code

private void Folder_FileTreeView_NodeMouseDoubleClick(object sender, TreeNodeMouseClickEventArgs e)
        {

if(e.Node.Text=="Desktop")

{

\\Do something

}

}
in Wpf I added text with Image next to each other by this method:

public object Node(string NodeIMGUri, string NodeText)
        {
           
            Image IMG = new Image() { Source = new System.Windows.Media.Imaging.BitmapImage(new Uri(NodeIMGUri, UriKind.RelativeOrAbsolute)) };
            TextBlock Text = new TextBlock() { Text = NodeText };
            StackPanel CustomStackPanel = new StackPanel();
            TreeViewItem TVItem = new TreeViewItem();
            IMG.Height = 50;
            IMG.Width = 50;
            CustomStackPanel.Orientation = Orientation.Horizontal;
            CustomStackPanel.Children.Add(IMG);
            CustomStackPanel.Children.Add(Text);
            TVItem.Header = CustomStackPanel;
            return TVItem;
        }

But When in SelectedItemChange Event of Treeview try to get text of Item clicked(Or ItemChange)

i cant get text of Treeview Item

 if help to me for compelete this  Dll I can send it free to all programmer. this dll support most of language like germany france china hindi bengali indonesian persian japanese korean arabic portugues latin swede english

Thanks all

Что я уже пробовал:

Большая часть чего-то в wpf treeview,например selecteditem,e.source, Header и т. д...

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