Interactivity in WPF TreeView (SfTreeView)

27 Feb 20252 minutes to read

This section explains about how to interact with TreeView and its items.

Interacting with TreeView items

ItemTapped event

The ItemTapped event will be triggered whenever tapping the item. ItemTappedEventArgs has the following members which provides the information for ItemTapped event:

  • Node: Gets the TreeViewNode and data associated with the tapped item as its arguments.
  • Position: Gets the touch position in the tapped item.
  • Handled: Gets or sets whether the event is handled or not.
sfTreeView.ItemTapped += SfTreeView_ItemTapped;

private void SfTreeView_ItemTapped(object sender, ItemTappedEventArgs e)
{
    MessageBox.Show("Tapped Item: " + (e.Node.Content as Model).State);
}

ItemDoubleTapped event

The ItemDoubleTapped event will be triggered whenever double tapping the item. The ItemDoubleTappedEventArgs has the following members providing information for the ItemDoubleTapped event:

  • Node: Gets the TreeViewNode and data associated with the double tapped item as its arguments.
  • Position: Gets the touch position in the double tapped item.
  • Handled: Gets or sets whether the event is handled or not.
sfTreeView.ItemDoubleTapped += SfTreeView_ItemDoubleTapped;

private void SfTreeView_ItemDoubleTapped(object sender, ItemDoubleTappedEventArgs e)
{
    MessageBox.Show("DoubleTapped Item: " + (e.Node.Content as Model).State);
}

ItemHolding event

The ItemHolding event will be triggered whenever the item is long pressed.
ItemHoldingEventArgs has the following members which provides the information for ItemHolding event:

  • Node: Gets the TreeViewNode and data associated with the hold item as its arguments.
  • Position: Gets the touch position in the hold item.
sfTreeView.ItemHolding += SfTreeView_ItemHolding;
private void SfTreeView_ItemHolding(object sender, ItemHoldingEventArgs e)
{
    MessageBox.Show("HoldItem: " + (e.Node.Content as Model).State);
}

NOTE

You can refer to our WPF TreeView feature tour page for its groundbreaking feature representations. You can also explore our WPF TreeView example to knows how to represents hierarchical data in a tree-like structure with expand and collapse node options.