public void CreateGroup(string name)
{
Group group = new Group {
Name = name
};
db.Group.InsertOnSubmit(group);
db.SubmitChanges();
AllGroupItems.Add(group);
}
public void DeleteGroup(Group group)
{
AllGroupItems.Remove(group);
db.Group.DeleteOnSubmit(group);
db.SubmitChanges();
}