private void CompleteClose()
{
INavigationContext context = CreateCloseContext();
OnClosed(_closeParameter, context);
bool?result = null;
var operationResult = ViewModel as IHasOperationResult;
if (operationResult != null)
{
result = operationResult.OperationResult;
}
OperationCallbackManager.SetResult(ViewModel,
OperationResult.CreateResult(OperationType.WindowNavigation, ViewModel, result, context));
_closeParameter = null;
_shouldClose = false;
_isOpen = false;
TView view = View;
if (view == null)
{
return;
}
ThreadManager.InvokeOnUiThreadAsync(() =>
{
CleanupView(view);
_viewManager
.CleanupViewAsync(ViewModel)
.WithTaskExceptionHandler(ViewModel);
});
View = null;
}
/// <summary>
/// Tries to close view-model.
/// </summary>
/// <param name="parameter">The specified parameter, if any.</param>
/// <returns>An instance of task with result.</returns>
public Task <bool> CloseAsync(object parameter)
{
if (!IsOpen)
{
throw ExceptionManager.WindowClosed();
}
IsClosing = true;
_closeParameter = parameter;
return(OnClosing(parameter)
.TryExecuteSynchronously(task =>
{
try
{
if (task.Result)
{
CloseViewImmediate();
}
return task.Result;
}
catch (Exception e)
{
OperationCallbackManager.SetResult(ViewModel,
OperationResult.CreateErrorResult <bool?>(OperationType.WindowNavigation, ViewModel, e,
CreateCloseContext()));
throw;
}
finally
{
IsClosing = false;
}
}));
}