public IEnumerable <TConnectionWay> GetConnectionWays(TValue value)
{
var childNode = root.GetNode(value);
var valueIndices = ChildrenList.IndicesOf(childNode);
foreach (var index in valueIndices)
{
if (index == -1)
{
throw new KeyNotFoundException(string.Format("Could not find child with value '{0}'.", value));
}
yield return(ConnectionWays[index]);
}
}