When You can use this feature when the list of permissible value of permissible values for a dropdown is long , and the user needs you want to display only a few values few values in a particular dropdown below is an option to do sospecific study.

Subset PVs

Example 1: Visit site dropdown to show only

...

required sites

{
  "name": "visit.site",
  "caption": "Site",
  "type": "dropdown",
  "multiple": false,
  "optional": false,
        "listSource": {
          "options": [
          	"Test Ankita v8.1",
              "Training Site Ankita",
              "Testing v8.1"
                     ]
                      },
           "showIf": {
             "op": "AND",
             "rules": [
               {
                 "field": "visit.status",
                 "op": "!=",
                 "value": "'Missed Collection'"
               }
         ]
          ]            }
}

Screenshot: After configuring in the JSON workflow, the 'Site' drop-down dropdown shows only selected sites.:

Example 2:

...

Display only

...

two values for gender

{
  "name": "cpr.participant.gender",
  "caption": "Gender",
  "type": "pvs",
  "attr": "gender",
  "optional": true,
  "defaultValue": "Female Gender",
    "options": [
          {"value": "Male Gender", "conceptCode": "M"},
          {"value": "Female Gender", "conceptCode": "F"}
               ]
}

Screenshot: After configuring the JSON workflow, the 'Gender' drop-down dropdown shows only 2 two genders, "Male" and "Female.":

Example 3:

...

Show only 'Whole Blood' value under 'Fluid' and 'Fixed Tissue Block' under 'Tissue

...

' class

{
  "name": "specimen.type",
  "caption": "Type",
  "type": "specimen-type",
  "specimen": "specimen",
  "optional": false,
  "defaultValue": "Whole Blood",
    "options": [
    {
      "specimenClass": "Fluid",
      "type": "Whole Blood"
    },
    {
      "specimenClass": "Tissue",
      "type": "Fixed Tissue Block"
    }
  ]
}

Screenshot: After configuring the JSON workflow, the 'Type' drop-down dropdown shows only the selected specimen type.:

Subset

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User Dropdown

You can configure a user list with a few selected the user. This feature helps users you to speed up the data entry. If there are only 4-5 users to select from, users you don't have to search every time from the list of all users.

Example: List the subset of the users that belongs to the biobank technician

The user drop-down dropdown field 'Biobank Technician' only has 4-5 users to select. Instead of searching from the users' list of all the users, the user , you can create the a subset of the users that belongs belong to the biobank technician.

{
            "name": "specimen.extensionDetail.attrsMap.FC15biobank_technician",
            "caption": "Biobank Technician",
            "type": "user",
            "selectProp": "id",
            "listSource": {
              "options": [
                {
                  "id": 126042,
                  "firstName": "Cora1Oncolife",
                  "lastName": "MarianoIA RP"
                },
                {
                  "id": 135963,
                  "firstName": "Emily2",
                  "lastName": "LinTesting"
                },
                {
                  "id": 3826041,
                  "firstName": "Nurul2OncoLife",
                  "lastName": "AlhamidIA RP"
                },
              ]
       {     }
          }

After configuring the user subset in the JSON workflow, the 'Biobank Technician' user dropdown shows only listed users:

Image Added

Example JSON

Download

Example 4: Restrict Collector user list based on the Institue they belong to

{
  				"idname" : 166"specimen.collectionEvent.user",
  				"caption" : "Collector",
  				"type" : "user",
  				"defaultValue" : "current_user",
   "firstName				"listSource": {
    			"EnmilyqueryParams",: {
      			"static": {
         	"lastNameinstitute": "HernandezColumbia University"
      }
    }
    },},"showIf": {
             "op": "AND",
             "rules": [
               {
                  "idfield": 248"specimen.lineage",

                 "firstNameop": "Jessica==",

                 "lastNamevalue": "Kenney'New'"

               },
                {

                 "idfield" : 418"specimen.status",

                 "firstNameop" : "Priscilla==",
                  "lastNamevalue" : "McNeil'Collected'"
               }
             ]
           },
           "subFields": [
             {
               "name": "emailAddress",
               ]"caption": "Collector Email Address"
             }
           ]

},

Screenshot: After configuring the user subset in the JSON workflow, the 'Biobank Technician' user drop-down shows only listed users.

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