public async Task <TResult> ShowModalDialogAsync <TViewModel, TResult>(object args) where TViewModel : IResultDialogViewModel <TResult>
{
IResultDialogViewModel <TResult> vm = GetViewModel <TViewModel, TResult>(args);
LcarsModalDialog dialog = ResolveModalDialogForViewModel(vm);
_semaphore.Wait();
await dialog.OpenAsync();
_semaphore.Release();
return(vm.Result);
}
private static LcarsModalDialog ResolveModalDialogForViewModel <T>(IResultDialogViewModel <T> vm)
{
if (vm is AddToInventoryViewModel)
{
return(new AddToInventoryModalDialog((AddToInventoryViewModel)vm));
}
else if (vm is AddGroceryItemTypeViewModel)
{
return(new AddGroceryItemTypeModalDialog((AddGroceryItemTypeViewModel)vm));
}
else
{
return(new LcarsModalDialog());
}
}