converting sql server rowversion to long or ulong?

Question

What is the proper type for the rowversion (timestamp) data type?

I know it is 8 bytes but i cannot find a link in MSDN which tell if it is a signed or unsigned long

Answer 1

I use this (updated):

private UInt64 GetUInt64ForRowVersion(byte[] rowVersion)
{
    byte[] rr = (byte[])rowVersion.Clone();
    if (BitConverter.IsLittleEndian) { Array.Reverse(rr); }
    return BitConverter.ToUInt64(rr, 0);
}