public void Clear(UIElement parent)
{
//clear all child
//and remove parent linkage
for (int i = _list.Count - 1; i >= 0; --i)
{
UIElement ui = _list[i];
ui.ParentUI = null;
UIElement.UnsafeRemoveLinkedNode(ui);
}
_list.Clear();
if (parent.CurrentPrimaryRenderElement is IContainerRenderElement container)
{
container.ClearAllChildren();
parent.CurrentPrimaryRenderElement.InvalidateGraphics();
}
parent.InvalidateLayout();
}
public void Clear(UIElement parent)
{
LinkedListNode <T> node = _linkedList.First;
while (node != null)
{
UIElement ui = node.Value;
node = node.Next;
ui.ParentUI = null;
UIElement.UnsafeRemoveLinkedNode(ui);
}
_linkedList.Clear();
//--------
//need to remove presentation
parent._needContentLayout = true;
if (parent.CurrentPrimaryRenderElement is IContainerRenderElement parentBox)
{
parentBox.ClearAllChildren();
}
}