private void UpdateCurrentViewCmd(object v)
{
if (v is ViewType)
{
ViewType viewName = (ViewType)v;
this.CurrentVM = _vmAbstractFactory.CreateViewModel(viewName);
}
}
public void Execute(object parameter)
{
if (parameter is ViewType)
{
ViewType viewType = (ViewType)parameter;
navigator.CurrentViewModel = viewModelAbstractFactory.CreateViewModel(viewType);
}
}
public ViewModelBase CreateViewModel(ViewType viewType)
{
switch (viewType)
{
case ViewType.Home:
return(_homeViewModelFactory.CreateViewModel());
case ViewType.Portfolio:
return(_portfolioViewModelFactory.CreateViewModel());
default:
throw new ArgumentException("The ViewType does not have a ViewModel.", "viewType");
}
}
public MainViewModel(IAuthenticator authenticator, INavigator navigator, ISimpleTraderViewModelFactory vmAbstractFactory)
{
NavigatorVM = navigator;
this._vmAbstractFactory = vmAbstractFactory;
// 通过判断是否登录，来确定头部是否显示
Authenticator = authenticator;
// 使 首页 默认被展示的功能
// 手动初始化调用委托 来激活首页， 而不是通过Icommand
// 此处与Controls.NavigationBar的值转换联动 ，如果没有此句，转换方法中的value将为空引用异常。
//UpdateCurrentViewCommand.Execute(_vmAbstractFactory.CreateViewModel(ViewType.Home));
NavigatorVM.CurrentVM = _vmAbstractFactory.CreateViewModel(ViewType.Login);
}
public ViewModelBase CreateViewModel(ViewType viewType)
{
switch (viewType)
{
case ViewType.Home:
return(_homeViewModelFactory.CreateViewModel());
case ViewType.Portfolio:
return(_portfolioViewModelFactory.CreateViewModel());
case ViewType.Buy:
return(_buyViewModel);
default: throw new ArgumentException("The view type has no view model", nameof(viewType));
}
}
public HomeViewModel CreateViewModel()
{
return(new HomeViewModel(_majorIndexViewModelFactory.CreateViewModel()));
}
public HomeViewModel CreateViewModel()
{
return(new HomeViewModel(_majorIndexListingViewModel.CreateViewModel()));
}
