Revit 2020 Sheet Number ASCII Sorting Error

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I confess I am confused about how Revit sorts ASCII characters in sheet numbers (or whether Autodesk uses ASCII at all).

In an earlier blog, I referred to my penchant of naming sheets using not only numerical but also alphabetical characters.

A good practice is to leave some spaces between sheets when numbering, so if we need to insert a sheet later, it can easily be achieved (much like computer programmers used to number in multiples of 10 in the 80’s so they could insert code if necessary). The browser sheet naming ordering and sorting is as per normal. As the UK protocol does not designate a sheet naming convention, I follow the American NCS standard. AX1AA is followed by AX1AL. If a sheet must be inserted before AX1AA, Then AX1A1 should suffice, as the ASCII code for “1” is lower than “A”.

Renumbering AX1AL to AX1A1 has the desired effect: AX1A1 now appears before AX1AA.

Autodesk, Micrographics, Revit 2020, Sheet Number, Sort, ASCII, Ascending, Alphanumeric

However, when the second-last digit is altered, Revit does not sort this in the same manner. It sorts the second last character in a descending and not ascending fashion. I suspect this may be a bug.

Autodesk, Micrographics, Revit 2020, Sheet Number, Sort, ASCII, Ascending, Alphanumeric

I looked on the forums and found the following post:

This does not offer an acceptable solution for me, so I created an idea, which you can vote for if you fell you also need the same sorting ability on Revit sheet numbers. Remember, the more people vote for an idea, the better chance it stands of being accepted.

If you need help implementing BIM in your office, or need help using Revit in general, please contact Micrographics so we may be of assistance to you with the above.

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