How to get the index of the next Span element?

Question

C++ / C#

I have a Span with data, I'm looking for an index and doing an operation with the element under this index, but after all the operations I need to do the same with the next element. How can I get the index of the next element?

Here is my code:

var indexData = buffer.IndexOf((byte)Fields.Timestamp);

Answer 1

var indexData = buffer.IndexOf((byte)Fields.Timestamp, indexData + 1);