xxcpzs/XXCpzs/ViewModels/LoginViewModel.cs

using System.Collections.Generic;
using System.Collections.ObjectModel;
using Xamarin.Forms;
using XXCpzs.helper;

namespace XXCpzs.ViewModels
{
    class LoginViewModel : BaseViewModel
    {

        public INavigation Navigation { get; set; }

        public ObservableCollection<DepartmentItem> BuMenItems1 { set; get; } = new ObservableCollection<DepartmentItem>();
        public ObservableCollection<DepartmentItem> BuMenItems
        {
            set { BuMenItems1 = value; }
            get { return BuMenItems1; }
        }

        public ObservableCollection<UserItem> UserItems1 { get; set; } = new ObservableCollection<UserItem>();
        public ObservableCollection<UserItem> UserItems
        {
            set { UserItems1 = value; }
            get { return UserItems1; }
        }
        public LoginViewModel(int companyId)
        {
            Dictionary<string, string> _body = new Dictionary<string, string>{
                { "companyId", companyId.ToString()}
            };
            List<DepartmentItem> buMens = HttpHelper.RefreshData<DepartmentItem>(03, RestSharp.Method.POST, _body);
            foreach (var item in buMens)
            {
                BuMenItems.Add(item);
            }
        }
    }
    public class UserItem
    {
        /// <summary>
        /// 
        /// </summary>
        public int uid { get; set; }
        /// <summary>
        /// 
        /// </summary>
        public string realname { get; set; }
    }

    public class DepartmentItem
    {
        /// <summary>
        /// 
        /// </summary>
        public int id { get; set; }
        /// <summary>
        /// 
        /// </summary>
        public string title { get; set; }
    }
}