private void Repair(Design.DesignOptions design)
{
List<string> combos = new List<string>(design.DesignCombinations.Count);
foreach (Load.LoadCombination c in design.DesignCombinations)
combos.Add(c.Name);
design.DesignCombinations.Clear();
foreach (Load.AbstractCase aCase in Model.Instance.AbstractCases)
if (combos.Contains(aCase.Name) && (aCase is Load.LoadCombination))
design.DesignCombinations.Add((Load.LoadCombination)aCase);
}