private async void AddNewGrp(object param)
{
var ecn = new Wizards.EditGroupNames();
var result = await DialogHost.Show(ecn, "HelperDialog", ExtendedOpenedEventHandler, ExtendedClosingEcnEventHandler);
}
private async void EditCostGroups(object obj)
{
Wizards.EditGroupNames egn;
egn = new Wizards.EditGroupNames();
var result = await DialogHost.Show(egn, "RootDialog", ExtendedOpenedEventHandler, ExtendedClosingCostGroupsEventHandler);
}