>Hi
>Found solutions as below
>
>

>            byte[] ticksAsBytes = BitConverter.GetBytes(DateTime.Now.Ticks);
>            Array.Reverse(ticksAsBytes);
>            int increment = Interlocked.Increment(ref guidCounter);
>            byte[] currentAsBytes = BitConverter.GetBytes(increment);
>            Array.Reverse(currentAsBytes);
>            byte[] bytes = new byte[16];
>            Array.Copy(ticksAsBytes, 0, bytes, 0, ticksAsBytes.Length);
>            Array.Copy(currentAsBytes, 0, bytes, 12, currentAsBytes.Length);
>            Array.Copy(GuidUtil.machineId, 0, bytes, 8, machineId.Length);
>
>            //return bytes.TransfromToGuidWithProperSorting();
>
>            return new Guid(bytes);
>

>Source: http://ayende.com/blog/4643/createsequetialuuid-answer
>
>But I didn't transform it using TransfromToGuidWithProperSorting() because found that it doesn't sorted actually by dump the generated guid to SQL table and added clustered index to the field.

Hi,
I'm not clear on your last sentence. The algorithm for TranfromToGuidWithProperSorting() is the same as that embedded in the version I referenced. I thought the whole point of the exercise was to produce a sequential GUID as used by the SQL ORDER BY clause.
Oh - and did you read the suggestion to use DateTime.UtcNow to avoid time change issues ?
Regards,
Viv