private void InsertMenuItemsToMenuTree(IDropInfo dropInfo, List <MenuTreeNodeViewModel> SourceMenuItems, MenuTreeNodeViewModel TargetMenuItem, ObservableCollection <MenuTreeNodeViewModel> Targets)
{
List <MenuTreeNodeViewModel> InsertItems = new List <MenuTreeNodeViewModel>();
foreach (var SourceItem in SourceMenuItems)
{
foreach (var Node in RegistedMenuTreeNodes)
{
RemoveMenuNodeReclusive(Node, SourceItem);
}
RegistedMenuTreeNodes.Remove(SourceItem);
InsertItems.Add(SourceItem);
}
if (InsertItems.Count > 0)
{
if (dropInfo.InsertIndex >= Targets.Count)
{
foreach (var InsertItem in InsertItems)
{
Targets.Add(InsertItem);
}
}
else
{
foreach (var InsertItem in InsertItems.Select((item, index) => new { item, index }))
{
Targets.Insert(dropInfo.InsertIndex + InsertItem.index, InsertItem.item);
}
}
}
}
private void AddMenuItemsToMenuTree(IDropInfo dropInfo, List <MenuTreeNodeViewModel> SourceMenuItems, MenuTreeNodeViewModel TargetMenuItem, ObservableCollection <MenuTreeNodeViewModel> Targets)
{
foreach (var SourceItem in SourceMenuItems)
{
foreach (var Node in RegistedMenuTreeNodes)
{
RemoveMenuNodeReclusive(Node, SourceItem);
}
RegistedMenuTreeNodes.Remove(SourceItem);
if (TargetMenuItem != null)
{
if (!TargetMenuItem.HasExecutableNode)
{
TargetMenuItem.Children.Add(SourceItem);
}
}
else
{
RegistedMenuTreeNodes.Add(SourceItem);
}
}
}
