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September 26th, 2010, 03:29 PM
#1
TreeView, ContextMenu, how do I get the SelectedItem's data Node/object?
Hi all,
I've implemented a tree and have bound it to my treeview. the binding is fine, but id like to add "add child" "remove node" functionality in a context menu for a selected item. I can not for the life of me figure out how to do this. My code is below. please help me. please point me in the right direction.
<TreeView Name="treeView" Margin="10,10,14,10" BorderThickness="2" ItemsSource="{Binding Nodes}">
<TreeView.BorderBrush>
<LinearGradientBrush EndPoint="1,0.5" StartPoint="0,0.5">
<GradientStop Color="#FF332187" Offset="0" />
<GradientStop Color="Transparent" Offset="1" />
</LinearGradientBrush>
</TreeView.BorderBrush>
<TreeView.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Nodes}">
<TextBlock Text="{Binding title}" PreviewMouseRightButtonUp="createContextMenu"/>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>
</TreeView>
my tree implementation:
public class Node
{
private ObservableCollection<Node> _nodes;
public string title { get; set; }
public string content { get; set; }
public Node(string _title)
{
title = _title;
_nodes = new ObservableCollection<Node>();
}
public ObservableCollection<Node> Nodes
{
get
{
if (_nodes == null)
_nodes = new ObservableCollection<Node>();
return _nodes;
}
set
{
_nodes = value;
}
}
}
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