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Property Expressions - Length

Overview​

It returns the length of a specified Property or value

Syntax​

Length(value)

  • value: The Property or value that the length is needed for
    • can use arithmetic in this field

Usage:​

  • Move a file while changing the file extension but keeping the rest of the File Name same
  • Combine Length Expression, Arithmetic Expression, and SubString to automatically keep the full Name but change extension
  • An Expression followed by .<extension> will change the extension of the file while keeping the original base name
Example
  • To remove the extension off the file name, we would capture the file name in a property,
    • [[SI.FILENAME]] = Test.txt
  • Use the Length expression to find the total length of the file name.
    • [[=Length([[SI.FILENAME]])]] = 8
  • Use subtraction to remove the length of the extension of the file name from the full length
    • [[=(Length([[SI.FILENAME]])-4)]] = 4
  • All steps can be combined into one expression
    • [[=SubStr([[SI.FILENAME]],0,Length([[SI.FILENAME]])-4)]] = Test
note

Most File Monitors, ie. File Arrival and SMA Resource Monitor, have ways to pass the Root of a File Name while dropping the extension.