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I would like to know if it is feasible and what would be the expression to have a new entry in a survey that would only be relevant when the tree species is unknown or unlisted. I have added manually entries in the tree species list for Unknown or Unlisted species as follows: no / code / family / scientific_name / synonyms / khm 10000 / UNK / Unknown / Unknown species / / Unknown species 10001 / UNL / Unlisted / Unlisted species / / Unlisted species (following previous questions here on unknown and unlisted species predefined in the preview in OF collect but not working in OF mobile) I have created a new entry in tree after the tree_species in the OF collect survey and I would like to make it relevant only when expression is verified' with an expression looking like: tree_species = 'Unknown species' However I don't know what expression to write as the tree species is not a single values list but a table with several columns. Any help would be much appreciated! |
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Dear Gael, The expression checks that the user selected the value "UNK" in the tree_species attribute of the same "tree" where the new attribute is defined. Many thanks, |
