MVVM CROSS 中的选项卡控件

Question

我们正在使用 Xamarin 框架开发支持 WP、Android 和 iOS 操作系统的应用程序。

需要创建两个选项卡过滤器和搜索，使用过滤器选项卡将从下拉列表中选择一些值，日期选择器并加载搜索选项卡的列表网格。但是我找不到在 MVVM CROSS（便携式库类）中创建选项卡控件的示例应用程序。

ViewModel 类：

 public class SearchWOViewModel : MvxViewModel
{
    public readonly ISearchWOService _serachwo;
    public SearchWOViewModel()
    {
        Filter = new FilterViewModel(_serachwo);
        Search = new SearchViewModel(_serachwo);
    }

    private FilterViewModel _Filter;
    public FilterViewModel Filter {  get { return _Filter; } set { _Filter = value; RaisePropertyChanged(() => Filter);  }  }

    private SearchViewModel _Search;
    public SearchViewModel Search { get { return _Search; }  set { _Search = value; RaisePropertyChanged(() => Search); } }
}

public class FilterViewModel : MvxViewModel
{
   public FilterViewModel(ISearchWOService search)
   {
      _filterwo = search;
      SiteDropDown();
   }
    private string _SiteResult;
    public List<DropDownEquipment> SiteResult
    {  get { return _SiteResult; } set { _SiteResult = value;  } } 

    public void SiteDropDown()
    {
       String query = "UserSite";
      _filterwo.FillUserSite(query, result => SiteResult = result, error => { });
    }
}

public class SearchViewModel : MvxViewModel
{
    //How to call the service and load the listing grid while loading the page
    private readonly ISearchWOService _serachwo;
    public SearchViewModel(ISearchWOService search)
    {
        _serachwo = search;
        SearchListingWO();
    }

    private List<ListingWo> _results;
    public List<ListingWo> Results { get { return _results; }  set {   _results = value;  RaisePropertyChanged(() => Results);   } }

    public void SearchListingWO() // Want to reload this function once site dropdown changes
    {
        String query = "x/x/INDIA/SA/WORKORDER"; 
        _serachwo.Listingwo(query, result => Results = result,error => { });
    }
}

Answer 1

看看 Stuart Lodge 的 N+1 天 MVVMCross Link Here

N=25 - 选项卡（MvvmCross 的 N+1 天）

编辑： 一些快速的想法。使用消息（N=9 视频）将选定的过滤器选项从“过滤器选项卡”传递到“搜索选项卡”。当“搜索选项卡”收到消息时，相应地更新（过滤）绑定集合。

编辑2： “我的问题是如何在 MVXViewModel 核心项目中触发选项卡更改事件” iOS：SelectedViewController = ViewControllers[tabIndex];
安卓：how to change tab of a tabactivity from an activity started by the tabactivity ? or change current tab 在 VIEW 代码中执行所有这些操作或将属性绑定到视图模型。