You can set fields to show or hide based on values selected in another field using custom configuration.

The rules added for skip logic are only reflected on add/edit pages. The overview page is a superset of all fields described in the data dictionary.

1. Show custom field based on value of another custom field

Example: Show the field 'Relation To Proband' only if the value of field 'Proband' is equal to 'No'.

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Example code

{
          "name": "cpr.participant.extensionDetail.attrsMap.DD15",
          "caption": "Relation To Proband",
          "type": "dropdown",
          "optional": true,
          "showIf": {
            "op": "AND",
            "rules": [
              {
                "field": "cpr.participant.extensionDetail.attrsMap.RB10",
                "op": "==",
                "value": "'No'"
              }
            ]
          },
          "listSource": {
            "apiUrl": "forms/permissible-values",
            "selectProp": "value",
            "displayProp": "value",
            "queryParams": {
              "dynamic": {},
              "static": {
                "formName": "kMCParticipantExtension",
                "controlName": "DD15"
              }
            }
          }
        }

Screenshot when the field is hidden:

Screenshot when the field is shown:

2. Show custom field only on create aliquots page

Example: Display the custom field 'Storage tube' field while creating the aliquots

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Example code

{
          "name": "specimen.extensionDetail.attrsMap.ST3",
          "caption": "Storage tube",
          "type": "text",
          "optional": "true",
          "showIf": {
              "op": "AND",
              "rules": [
                {
                  "field": "specimen.lineage",
                  "op": "==",
                  "value": "'Aliquot'"
                }
              ]
            }
        }

3. Show custom field when the visit date is greater than specified date

Example: Show 'COVID-19 Test Date' custom field only when the visit date is after 23 January, 2020.

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Example code

{
      "name" : "visit.extensionDetail.attrsMap.DP13",
      "caption" : "COVID-19 Test Date",
      "type" : "date",
      "dateOnly" : true,
      "optional" : true,
      "showIf" : {
        "op" : "AND",
        "rules" : [ {
          "field" : "visit.visitDate",
          "op" : ">=",
          "value" : "1579717800000"
        } ]
      },
      "showInOverviewIf" : "useShowIf"
    }

"1579717800000" is the number of milliseconds elapsed since Unix time Epoch on 23/01/2020 at 00:00:00 hrs UTC.

The number can be obtained from the sites like https://currentmillis.com/.

4. Show custom field based on specimen lineage and type

Example: Display 'Upload image' custom field when the specimen lineage is 'New' and the specimen type is 'Whole Blood'.

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Example code

 {
   "name" : "specimen.extensionDetail.attrsMap.FU2",
   "caption" : "Upload image",
   "type" : "file",
   "optional" : true,
   "showInOverviewIf" : "useShowIf",
   "showIf" : {
           "op" : "AND",
           "rules" : [ {
             "field": "specimen.lineage",
             "op": "==",
             "value": "'New'"
           },{
             "field" : "Specimen.type",
             "op" : "==",
             "value" : "'Whole Blood'"
         } ]
       }
 },

The field looks like below on the specimen overview page:

Hide/Unhide Fields Based on Value of Another Field

1. Show custom field based on value of another custom field

2. Show custom field only on create aliquots page

3. Show custom field when the visit date is greater than specified date

4. Show custom field based on specimen lineage and type