using HxModel;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using DataEntity.User;
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namespace XHandler.Class
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{
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public class MenuTree:INotifyPropertyChanged
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{
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public event PropertyChangedEventHandler PropertyChanged;
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protected virtual void OnPropertyChanged(string propname)
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{
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if (PropertyChanged != null)
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{
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PropertyChanged(this, new PropertyChangedEventArgs(propname));
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}
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}
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public string Id { get; set; }
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/// <summary>
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/// 项目ID
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/// </summary>
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public string ProjectId { get; set; }
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/// <summary>
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/// 子节点ID
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/// </summary>
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public string ChildrenId { get; set; }
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/// <summary>
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/// 状态（0禁用，1启用）
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/// </summary>
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public int State { get; set; }
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/// <summary>
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/// 层级
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/// </summary>
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public int Level { get; set; }
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/// <summary>
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/// 菜单名称
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/// </summary>
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public string Name { get; set; }
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/// <summary>
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/// 默认图片
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/// </summary>
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public string ImgDefault { get; set; }
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/// <summary>
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/// 点击后图片
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/// </summary>
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public string ImgChange { get; set; }
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/// <summary>
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/// 排序
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/// </summary>
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public int Sequence { get; set; }
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/// <summary>
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/// 创建人
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/// </summary>
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public string CreatName { get; set; }
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/// <summary>
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/// 创建时间
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/// </summary>
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public DateTime CreateTime { get; set; }
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/// <summary>
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/// 修改人
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/// </summary>
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public string ModifyName { get; set; }
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/// <summary>
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/// 修改时间
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/// </summary>
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public DateTime? ModifyTime { get; set; }
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public MenuTree Parent { get; set; }
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public List<MenuTree> Children { get; set; }
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public bool? _isChecked;
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/// <summary>
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/// CheckBox是否选中
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/// </summary>
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public bool? IsChecked
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{
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get
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{
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return _isChecked;
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}
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set
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{
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SetIsChecked(value, true, true);
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}
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}
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private bool _isExpanded;
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public bool IsExpanded
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{
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get
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{
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return _isExpanded;
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}
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set
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{
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_isExpanded = value;
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OnPropertyChanged("IsExpanded");
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}
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}
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public MenuTree()
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{
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Level = -1;
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IsExpanded = true;
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//_isChecked = false;
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this.Children = new List<MenuTree>();
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}
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public MenuTree(MenuTab menu)
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{
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this.Id = menu.menu_id;
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this.ProjectId = menu.project_id;
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this.ChildrenId = menu.children_id;
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this.State = menu.state;
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this.Level = menu.level;
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this.Name = menu.name;
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this.ImgDefault = menu.imgdefault;
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this.ImgChange = menu.imgchange;
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this.Sequence = menu.sequence;
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this.CreatName = menu.creatname;
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this.CreateTime = Convert.ToDateTime(menu.createtime==null? "2022-10-09 00:01:10" : menu.createtime);
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this.ModifyName = menu.modifyname;
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this.ModifyTime = Convert.ToDateTime((menu.modifytime==null|| menu.modifytime =="") ? "2022-10-09 00:01:10" : menu.modifytime);
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this.IsExpanded = true;
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//_isChecked = null;
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this.Children = new List<MenuTree>();
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}
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private void SetIsChecked(bool? value, bool checkedChildren, bool checkedParent)
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{
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if (_isChecked == value) return;
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_isChecked = value;
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//选中和取消子类
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if (checkedChildren && value.HasValue && Children != null)
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Children.ForEach(ch => ch.SetIsChecked(value, true, false));
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//选中和取消父类
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if (checkedParent && this.Parent != null)
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this.Parent.CheckParentCheckState();
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//通知更改
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OnPropertyChanged("IsChecked");
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}
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/// <summary>
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/// 检查父类是否选 中
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/// 如果父类的子类中有一个和第一个子类的状态不一样父类ischecked为null
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/// </summary>
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private void CheckParentCheckState()
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{
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List<MenuTree> checkedItems = new List<MenuTree>();
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string checkedNames = string.Empty;
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bool? _currentState = this.IsChecked;
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bool? _firstState = null;
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for (int i = 0; i < this.Children.Count(); i++)
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{
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bool? childrenState = this.Children[i].IsChecked;
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if (i == 0)
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{
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_firstState = childrenState;
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}
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else if (_firstState != childrenState)
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{
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_firstState = null;
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}
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}
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if (_firstState != null) _currentState = _firstState;
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SetIsChecked(_firstState, false, true);
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}
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/// <summary>
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/// 创建树
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/// </summary>
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/// <param name="children"></param>
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/// <param name="isChecked"></param>
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public void CreateTreeWithChildren(MenuTree children, bool? isChecked)
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{
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this.Children.Add(children);
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//必须先把孩子加入再为Parent赋值，
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//否则当只有一个子节点时Parent的IsChecked状态会出错
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//if(children.Name == )
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children.Parent = this;
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children.IsChecked = isChecked;
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}
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}
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}
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