private async Task ExecuteAddGroupCommandAsync()
{
try
{
if (string.IsNullOrEmpty(GroupToAdd))
{
throw new ArgumentNullException(nameof(GroupToAdd), "Please enter a group name.");
}
//Remember which group was selected by its unique ID
var tempSelectedGroupId = SelectedPersonGroup.PersonGroupId;
await FaceService.CreatePersonGroupAsync(Guid.NewGuid().ToString(), GroupToAdd);
await(new MessageDialog($"'{GroupToAdd}' successfully added.")).ShowAsync();
//Cleanup UI
GroupToAdd = string.Empty;
await LoadGroupsAsync();
//Set the selected group back to the group we had selected before
foreach (var group in PersonGroups)
{
if (group.PersonGroupId.Equals(tempSelectedGroupId))
{
SelectedPersonGroup = group;
break;
}
}
}
catch (Exception ex)
{
var dialog = new MessageDialog(ex.Message, "Group could not be added.");
await dialog.ShowAsync();
}
}
