TreeView double click event

Question

I want to define a double click even on a TreeView so that I will be able to know which item in the TreeView was selected and to get his title. The way I try to get it's title gets me "MyProject.MenuItem". How can I refer to the selected item on the tree, make sure it's not the root, and get it's title? What I did:

<TreeView Name="trvMenu" HorizontalAlignment="Left" Height="312" VerticalAlignment="Top" Width="200" MouseDoubleClick="TreeView_MouseDoubleClick" >
        <TreeView.ItemTemplate>
               <HierarchicalDataTemplate DataType="{x:Type local:MenuItem}" ItemsSource="{Binding Items}">
                     <TextBlock Text="{Binding Title}" />
               </HierarchicalDataTemplate>
        </TreeView.ItemTemplate>
</TreeView>

The MessageBox shows "MyProject.MenuItem", what I want to do is not show a messagebox, but to get the title of the selected treeview item, after checking it is not the root

private void TreeView_MouseDoubleClick(object sender, RoutedEventArgs e)
    {
        if (sender is TreeViewItem)
            if (!((TreeViewItem)sender).IsSelected)
                return;
        TreeViewItem tviSender = sender as TreeViewItem;
        MessageBox.Show(trvMenu.SelectedItem.ToString());
    }

Solution

Change your double click handler like shown below. Instead of calling ToString it accesses the Title property of your MenuItem item class.

private void TreeView_MouseDoubleClick(object sender, RoutedEventArgs e)
{
    var menuItem = trvMenu.SelectedItem as MyProject.MenuItem;

    if (menuItem != null)
    {
        MessageBox.Show(menuItem.Title);
    }
}

Comments

[Yona]

It doesn't recognize "Title" and doesn't give in to any casting >_<

[Yona]

ok, i did " MessageBox.Show(((MenuItem)trvMenu.SelectedItem).Title); " but now it doesn't even show the messagebox..

[Krishna]

Just put a breakpoint on MessaBox.Show line and inspect trvMenu.SelectedItem and make sure that it the object that you are expecting it to be