BitSharp.Esent.EsentBlockTxesStorage.ContainsBlock C# (CSharp) Method

        public bool ContainsBlock(UInt256 blockHash)
        {
            using (var handle = this.cursorCache.TakeItem())
            {
                var cursor = handle.Item;

                using (var jetTx = cursor.jetSession.BeginTransaction())
                {
                    Api.JetSetCurrentIndex(cursor.jetSession, cursor.blockIndexTableId, "IX_BlockHash");
                    Api.MakeKey(cursor.jetSession, cursor.blockIndexTableId, DbEncoder.EncodeUInt256(blockHash), MakeKeyGrbit.NewKey);

                    return Api.TrySeek(cursor.jetSession, cursor.blockIndexTableId, SeekGrbit.SeekEQ);
                }
            }
        }