使用基础结构中的参数进行Prism WPF导航

Question

我尝试从参数作为模型的基础架构解决方案进行导航，并设置DataContext。

问题尽管我设置了不同的datacontext，但始终设置了第一个加载的数据文本。

UserControl _containerLoanView;
NavigationParameters navParameter = new NavigationParameters();
LoanModel loanModel = new LoanModel();
switch (loanType)
{
    case "Weekly Loan":

        _containerLoanView = _container.Resolve(typeof(object), Constants.LoanView) as UserControl;
        _containerLoanView.DataContext = new WeekLoanVeiwModel();                                        
        navParameter.Add("WeeklyLoanVM", loanModel);
        if (_regionManager.Regions[RegionNames.ManagementRegion].GetView(Constants.WeeklyLoanView) == null)
        {
            _regionManager.Regions[RegionNames.ManagementRegion].Add(_containerLoanView, Constants.WeeklyLoanView);
        }
        break;
    case "Daily Loan":
        _containerLoanView = _container.Resolve(typeof(object), Constants.LoanView) as UserControl;
        _containerLoanView.DataContext = new DailyLoanViewModel();
        navParameter.Add("DailyLoanVM", loanModel);
        if (_regionManager.Regions[RegionNames.ManagementRegion].GetView(Constants.DailyLoanView) == null)
        {
            _regionManager.Regions[RegionNames.ManagementRegion].Add(_containerLoanView, Constants.DailyLoanView);
        }
        break;
}

_regionManager.RequestNavigate(RegionNames.ManagementRegion, new Uri(Constants.LoanViewLocation, UriKind.Relative), navParameter);