/// <summary>
/// Gets all block references.
/// </summary>
/// <param name="btr">The BTR.</param>
/// <param name="directOnly">if set to <c>true</c> [direct only].</param>
/// <param name="forceValidity">if set to <c>true</c> [force validity].</param>
/// <returns></returns>
public static IEnumerable <BlockReference> GetAllBlockReferences(this BlockTableRecord btr, bool directOnly,
bool forceValidity)
{
return(btr.GetAllBlockReferences(btr.Database.TransactionManager.TopTransaction, directOnly, forceValidity));
}