public DevicesTree()
{
_tree = new TreeGridView();
_tree.AllowMultipleSelection = false;
_tree.Columns.Add(new GridColumn()
{
HeaderText = "Instance",
DataCell = new TextBoxCell("DeviceInstance")
});
_tree.Columns.Add(new GridColumn()
{
HeaderText = "Name",
DataCell = new TextBoxCell("Name"),
AutoSize = true
});
_tree.SelectedItemsChanged += _selectedItemChanged;
this.Content = _tree;
}