internal void InsertCore(int index, SnipPagePart part)
{
part.ParentContainer = ParentContainer;
part.Level = ParentContainer.Level + 1;
_innerList.Insert(index, part);
///维护SnipPagePart的Index
for (int i = index; i < _innerList.Count; i++)
{
_innerList[i].Index = i;
}
ParentContainer.LayoutParts();
}
internal void RemoveCore(SnipPagePart part)
{
int index = _innerList.IndexOf(part);
IPartContainer partContainer = part.ParentContainer;
part.ParentContainer = null;
bool bl = _innerList.Remove(part);
if (bl)
{
///维护SnipPagePart的Index
for (int i = index; i < _innerList.Count; i++)
{
_innerList[i].Index = i;
}
///重新布局
partContainer.LayoutParts();
}
}