/// <summary>
/// 菜单树映射
/// </summary>
public static ICollection <LoginMenuInfo> ToTree(this IEnumerable <Menu> menus, Guid?parentId)
{
//验证
menus = menus == null ? new Menu[0] : menus.ToArray();
//声明容器
ICollection <LoginMenuInfo> loginMenuInfos = new HashSet <LoginMenuInfo>();
//判断父级菜单Id是否为null
if (!parentId.HasValue)
{
//从根级开始遍历
foreach (Menu menu in menus.OrderBy(x => x.Sort).Where(x => x.IsRoot))
{
LoginMenuInfo menuInfo = menu.ToNode();
loginMenuInfos.Add(menuInfo);
menuInfo.SubMenuInfos = menus.ToTree(menuInfo.Id);
}
}
else
{
//从给定Id向下遍历
foreach (Menu menu in menus.OrderBy(x => x.Sort).Where(x => x.ParentNode != null && x.ParentNode.Id == parentId.Value))
{
LoginMenuInfo menuInfo = menu.ToNode();
loginMenuInfos.Add(menuInfo);
menuInfo.SubMenuInfos = menus.ToTree(menuInfo.Id);
}
}
return(loginMenuInfos);
}
//Actions
#region 导航至菜单 —— async void Navigate(LoginMenuInfo menu)
/// <summary>
/// 导航至菜单
/// </summary>
/// <param name="menu">菜单</param>
public async void Navigate(LoginMenuInfo menu)
{
if (!string.IsNullOrWhiteSpace(menu.Url))
{
this.Busy();
Type type = Type.GetType(menu.Url);
IScreen document = (IScreen)ResolveMediator.Resolve(type);
document.DisplayName = menu.Name;
await this.ActivateItem(document);
this.ActiveDocument = document;
this.Idle();
}
}
