private static XamDataTreeCommandBehavior GetOrCreateCommandBehavior(XamDataTree menuItem)
{
if (!(menuItem.GetValue(SelectedCommandBehaviorProperty) is XamDataTreeCommandBehavior behavior))
{
behavior = new XamDataTreeCommandBehavior(menuItem);
menuItem.SetValue(SelectedCommandBehaviorProperty, behavior);
}
return(behavior);
}
private static XamDataTreeNodeUnselectedCommandBehavior GetOrCreateBehavior(XamDataTree tree)
{
XamDataTreeNodeUnselectedCommandBehavior behavior = tree.GetValue(DataItemUnselectedProperty) as XamDataTreeNodeUnselectedCommandBehavior;
if (behavior == null)
{
behavior = new XamDataTreeNodeUnselectedCommandBehavior(tree);
tree.SetValue(DataItemUnselectedProperty, behavior);
}
return(behavior);
}
private static XamDataTreeNodeActivatedCommandBehavior GetOrCreateBehavior(XamDataTree menuItem)
{
XamDataTreeNodeActivatedCommandBehavior behavior = menuItem.GetValue(SelectedCommandBehaviorProperty) as XamDataTreeNodeActivatedCommandBehavior;
if (behavior == null)
{
behavior = new XamDataTreeNodeActivatedCommandBehavior(menuItem);
menuItem.SetValue(SelectedCommandBehaviorProperty, behavior);
}
return(behavior);
}
private static void Tree_Loaded(object sender, RoutedEventArgs e)
{
XamDataTree tree = (XamDataTree)sender;
tree.Loaded -= Tree_Loaded;
var node = FindTreeNodeFromDataItem(tree, tree.GetValue(DefaultSelectedDataItemProperty));
if (node != null)
{
if (!node.IsSelected)
{
node.IsSelected = true;
node.IsActive = true;
}
}
}
public static string GetDefaultSelectedDataItem(XamDataTree tree)
{
return(tree.GetValue(DefaultSelectedDataItemProperty) as string);
}
public static object GetCommandParameter(XamDataTree menuItem)
{
return(menuItem.GetValue(CommandParameterProperty));
}
public static ICommand GetCommand(XamDataTree menuItem)
{
return(menuItem.GetValue(CommandProperty) as ICommand);
}
public static object GetCommandParameter(XamDataTree tree)
{
return(tree.GetValue(CommandParameterProperty));
}
public static ICommand GetCommand(XamDataTree tree)
{
return(tree.GetValue(CommandProperty) as ICommand);
}