Trying to calculate length in ArcGIS 10, Service Pack 3 on Windows 7. Used Calculate Geometry sucessfully to calculate the XY end coordinates of the lines in a 400, 000+ record dbase file. Then used the tool 'XY to Line' to produce a resultant file. Added a field called Distance (data type double) to the result file. Right click on 'Distance', scrolled to Calculate Geometry. The top dropdown box showed Length-Disabled. This procedure worked for a file with 4 records. I found the procedure at this link: http://kb.mit.edu/confluence/pages/viewpage.action?pageId=11338190 Had some problems until I got a Unique ID for all the records but after that still got Length -Disabled. Any help will be sincerely appreciated! Please respond to: Bill.Alfred@med.fsu.edu. Happy New Year, Bill Alfred, MS, GISP
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