//传入 菜品大类id 得到菜品大类的名字
public TreeNode GetDishTypeBigName(int? id, TreeNode root)
{
if (root.Id == id)
{
return root;
}
var childrens = root.Children;
foreach (var element in childrens)
{
if (element.Id == id)
{
return element;
}
else {
if (element.Children.Count > 0) {
TreeNode seStr = GetDishTypeBigName(id, element);
if (seStr != null) { return seStr; }
}
}
}
return null;
}
public TreeNode(int id, string name, TreeNode parent, ObservableCollection<TreeNode> children)
{
this.Id = id;
this.Name = name;
this.Parent = parent;
this.Children = children ?? new ObservableCollection<TreeNode>();
}
//设置全部的树属性为false ,当前点击的为true
public void SelectedTreeNodeFalse(TreeNode treeNode)
{
if (treeNode == null) {
return;
}
ObservableCollection<TreeNode> children = treeNode.Children;
foreach (var t in children)
{
if (t.Children.Count() > 0)
{
SelectedTreeNodeFalse(t);
}
else
{
t._Selected = false;
}
}
}
public TreeNode GetSelectedTreeNode(TreeNode treeNode)
{
ObservableCollection<TreeNode> children = treeNode.Children;
foreach (var t in children)
{
if (t.Children.Count() > 0)
{
TreeNode td = GetSelectedTreeNode(t);
if (td != null) { return td; }
}
else
{
if (t._Selected)
{
return t;
}
}
}
return null;
}
public void LoadTreeNodeChildren(TreeNode selected)
{
if( null==selected){
return;
}
selectedLast = selected;
if (selected.Parent != null)
{
_DishTypeIdLast = selected.Id;
}
DishService service = new DishService();
var dishesMenus = service.LoadSubTypeById(selected.Id);
selected.Children.Clear();
foreach (var menu in dishesMenus)
{
var child = selected.createChild(menu.DishTypeId, menu.Name);
selected.Children.Add(child);
}
//SelectedTreeNodeFalse(Root);
//selected._Selected = true;
}
/// <summary>
/// 加载初始化数据
/// </summary>
public void Init()
{
DishTypeMenu = new ObservableCollection<TreeNode>();
var dishesMenus = _IDishService.LoadFatherType();
Root = TreeNode.createRoot(0, "全部类型");
DishTypeMenu.Add(Root);
foreach (var menu in dishesMenus)
{
var child = Root.createChild(menu.DishTypeId, menu.Name);
Root.Children.Add(child);
}
RaisePropertyChanged("DishWin");
}
