/// <summary>
/// Closes the specified view.
/// </summary>
/// <param name="viewModel">The view model.</param>
/// <param name="viewId">The view identifier.</param>
public virtual void Close(dynamic viewModel, string viewId)
{
var region = RegionManager.Regions[Regions.MainRegion];
for (var i = 0; i < region.Views.Count(); i++)
{
var v = (UserControl)region.Views.ElementAt(i);
var d = v?.DataContext;
if (d == null)
{
continue;
}
if (d.GetType() != viewModel.GetType())
{
continue;
}
if (((NavigationBaseViewModel)d).ViewId != viewId)
{
continue;
}
try
{
var fe = (FrameworkElement)v;
region.Remove(fe);
}
catch (Exception ex)
{
ErrorTracker.LogError(new ErrorModel(ex, Environment.UserName, "NavigationBaseViewModel.Close"));
Logger.Log(LogLevel.Error, ex.Message.Trim(), ex.Data);
}
}
}
/// <summary>
/// Navigates to the specified view with parameters and closes the current view.
/// </summary>
/// <param name="navModel">The nav model.</param>
public virtual void NavigateWithClose(INavModel navModel)
{
var message = $"Navigating to {navModel.ViewName} with the following parameters:\n";
message = navModel.NavigationParameters.Aggregate(message, (current, o) => current + $"{o.Key} - {o.Value}\n");
Logger.Log(LogLevel.Info, message);
try
{
RegionManager.RequestNavigate(Regions.MainRegion, navModel.ViewName, NavigationCallback,
navModel.NavigationParameters);
var vm = navModel.ViewModel as NavigationBaseViewModel;
if (vm == null)
{
Debug.WriteLine("VM NULL!!");
return;
}
navModel.ViewId = vm.ViewId;
Close(navModel);
}
catch (Exception ex)
{
ErrorTracker.LogError(new ErrorModel(ex, Environment.UserName,
"NavigationBaseViewModel.NavigateWithClose"));
Logger.Log(LogLevel.Error, "Failed to navigate to view. Location: NavigationBaseViewModel.NavigateWithClose");
Logger.Log(LogLevel.Error, ex, ex.Message.Trim(), ex.StackTrace);
}
}
/// <summary>
/// Navigates the specified view.
/// </summary>
/// <param name="navModel">The nav model.</param>
public virtual void Navigate(INavModel navModel)
{
Logger.Log(LogLevel.Info, $"Navigating to {navModel.ViewName}.");
try
{
RegionManager.RequestNavigate(Regions.MainRegion, navModel.ViewName, NavigationCallback);
}
catch (Exception ex)
{
ErrorTracker.LogError(new ErrorModel(ex, Environment.UserName, "NavigationBaseViewModel.Navigate"));
Logger.Log(LogLevel.Error, "Failed to navigate to view. Location: NavigationBaseViewModel.Navigate");
Logger.Log(LogLevel.Error, ex, ex.Message.Trim(), ex.StackTrace);
}
}