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    Is it possible to modify the dropdown based on what is entered in another field

    Technical Questions
    #1

    I have been reviewing how to control the input using JSON files.
    https://openspecimen.atlassian.net/wiki/spaces/CAT/pages/101187680/Attribute+types+examples

    I would like to know if the values in the dropdowns can be controlled depending on the values in a field. In other words, can I put IF/THEN logic in the JSON file. For example, I want to change the dropdown values for the specimen type depending on the values in the specimen class field.

         {
       "name": "specimen.type",
       "caption": "Specimen Type",
       "type": "dropdown",
       "optional": true,
       "defaultValue": "Not Specified",

    IF (specimen.class == “Tissue”) THEN

           "listSource": {
         "selectProp": "value",
         "displayProp": "value",
         "options": [
           {  "value": "Fresh Tissue" },
           { "value": "Frozen Tissue" },
           { "value": "Fixed Tissue" }
         ]
       }

    ELSEIF (specimen.class == “Fluid”) THEN

           "listSource": {
         "selectProp": "value",
         "displayProp": "value",
         "options": [
           {  "value": "Buccal Swab" },
           { "value": "Whole Blood" },
           { "value": "Saliva" }
         ]
       }

    ENDIF

          }