MTP2.0_CSharp/Muchinfo.MTPClient/Fx4.0/Main/03.UI/Modules/Muchinfo.TASClient.Account/ViewModels/AnnouncementMenuService.cs

using GalaSoft.MvvmLight.Command;
using Muchinfo.MTPClient.Account.Views;
using Muchinfo.MTPClient.Data;
using Muchinfo.MTPClient.Data.Enums;
using Muchinfo.MTPClient.Infrastructure.Helpers;
using Muchinfo.MTPClient.IService;
using System.Collections.Generic;
using System.Windows;
using System.Windows.Input;
namespace Muchinfo.MTPClient.Account.ViewModels
{
    /// <summary>
    /// 关于公告菜单的定义
    /// </summary>
    public class AnnouncementMenuService : IModuleMenuService
    {
        public Dictionary<Data.Enums.MenuCommandType, Data.SysMenuItem> GetModuleMenuItems()
        {
            var sysMenu = new Dictionary<MenuCommandType, SysMenuItem>();

            //公告通知
            sysMenu.Add(MenuCommandType.NoticeInform, new SysMenuItem(MenuCommandType.NoticeInform));

            //公告
            //sysMenu.Add(MenuCommandType.Notice, new SysMenuItem(MenuCommandType.Notice) { Command = MenuCommand, ViewType = typeof(SystemAnnouncementView), IsDialog = true });

            ////通知
            //sysMenu.Add(MenuCommandType.Notify, new SysMenuItem(MenuCommandType.Notify) { Command = MenuCommand, ViewType = typeof(SystemAnnouncementView), IsDialog = true });

            return sysMenu;
        }
        private ICommand _menuCommand;

        /// <summary>
        /// 菜单操作
        /// </summary>
        public ICommand MenuCommand
        {
            get
            {
                if (_menuCommand == null)
                {
                    _menuCommand = new RelayCommand<SysMenuItem>((item) =>
                    {
                        if (!item.IsDialog)
                        {
                            var view = item.View as FrameworkElement;
                            if (view != null)
                            {
                                MessengerHelper.DefaultSend(view, MessengerTokens.ShowQueryContet);
                            }

                        }
                        else
                        {


                            var type = item.ViewType;

                            var assembly = System.Reflection.Assembly.GetAssembly(type);

                            var view = assembly.CreateInstance(type.FullName, false, System.Reflection.BindingFlags.CreateInstance, null, item.Params == null ? null : item.Params.ToArray(), null, null) as Window;
                            if (view != null)
                            {
                                view.ShowDialog();
                            }
                        }
                    });
                }
                return _menuCommand;
            }
        }
    }
}