You can show fields based on the dropdown values for a specific study.

'Contains' Condition

Example: Show the custom field 'Any complications' at the visit level only if the 'Clinical Diagnosis' field contains the word 'pregnancy'.

The join function is not supported from v11.x onwards.

{
           "name" : "visit.extensionDetail.attrsMap.TA2",
           "caption" : "Any complications",
           "type" : "textarea",
           "optional" : true,
           "showIf" : {
             "op" : "AND",
             "rules" : [ {
               "field" : "visit.clinicalDiagnoses",
               "op" : ".join(',').indexOf('pregnancy')",
               "value" : "> -1"
             } ]
           },
           "showInOverviewIf": "useShowIf"
}

"op" : ".join(',').indexOf('pregnancy')": means show 'TA2' field when clinical diagnosis has 'pregnancy' word in the selected option.

'Is one of the value' Condition

Example 1: Shows the field 'Any complications' at the visit level if 'Clinical Diagnosis' has '10 weeks gestation of pregnancy' in it.

{
           "name" : "visit.extensionDetail.attrsMap.TA2",
           "caption" : "Any complications",
           "type" : "textarea",
           "optional" : true,
           "showIf" : {
             "op" : "AND",
             "rules" : [ {
               "field" : "visit.clinicalDiagnoses",
               "op" : ".indexOf('10 weeks gestation of pregnancy')",
               "value" : ">-1"
             } ]
           },
           "showInOverviewIf": "useShowIf"
  }

"op": ".indexOf('10 weeks gestation of pregnancy')": means show 'TA2' field when clinical diagnosis has '10 weeks gestation of pregnancy' value.

Example 2: Suppose you want to display fields on the nth step page when only specified specimen types are selected.

{
  "name" : "specimenCollection",
  "view" : null,
  "ctrl" : null,
  "data" : {
    "fieldGroups" : [ {
      "title" : "Processing Event for Frozen Samples",
      "criteria" : {
        "op" : "AND",
        "rules" : [ {
          "field" : "specimen.lineage",
          "op" : "==",
          "value" : "'Derived'"
        }, {
          "field" : "['Frozen Tissue', 'Frozen Tissue Slide', 'Frozen Tissue Block','Embedded in OCT', 'Swiss Role in OCT'].indexOf(specimen.type)",
          "op" : "!=",
          "value" : "-1"
        } ]
      },
      "fields" : [ {
        "name" : "specimen.label",
        "baseField" : "specimen.label",
        "type" : "span"
      }, {
        "name" : "specimen.type",
        "baseField" : "specimen.type",
        "type" : "span"
      }, {
        "name" : "specimen.createdOn",
        "baseField" : "specimen.createdOn",
        "caption" : "Processing Date and Time"
      } ]
    } ]
  }
}

Example 3: Show field on overview and hide on the data entry page.

{
      "name" : "cpr.participant.extensionDetail.attrsMap.ST10",
      "caption" : "Kindred ID",
      "type" : "text",
      "showIf" : {
        "op" : "AND",
        "rules" : [ {
          "field" : "cpr.participant.extensionDetail.attrsMap.ST10",
          "op" : "==",
          "value" : "'xxx"
        } ]
      },
      "optional" : true
    }

Example 4: Show field on overview only if the value is present. (Check showinOverviewIf)

{
   "name" : "cpr.participant.extensionDetail.attrsMap.DP3",
   "caption" : "Estimated Date of Delivery",
   "showInOverviewIf" : "!!cpr.participant.extensionDetail.attrsMap.DP3",
   "type" : "date",
   "optional" : true
},

Example 5: Don’t show field on overview if the value present is “Not Specified“ or “Null“.

{
      "name" : "visit.clinicalDiagnoses",
      "caption" : "Clinical Diagnoses",
      "type" : "pvs",
      "attr" : "clinical_diagnosis",
      "showInOverviewIf" : "!!visit.clinicalDiagnoses && visit.clinicalDiagnoses.length > 0 && (visit.clinicalDiagnoses.length != 1 || visit.clinicalDiagnoses != 'Not Specified')",
      "optional" : true,
      "multiple" : true,
      "showIf" : {
        "op" : "AND",
        "rules" : [ {
          "field" : "visit.status",
          "op" : "!=",
          "value" : "'Missed Collection'"
        } ]
      }
    }

Example 6: Show the Birth Date field based on collection protocol name.

{
      "name": "cpr.participant.birthDate",
      "caption": "Birth Date",
      "type": "date",
      "dateOnly": true,
      "optional": true,
      "showIf": {
        "rules": [
          {
            "field": "['(UAHS) [BW] Brain Health', 'AmolT1'].indexOf(cp.shortTitle)",
            "op": "!=",
            "value": "-1"
          }
        ]
      },
      "showInOverviewIf": "useShowIf"
    },

Screenshot 1: When CP name ((UAHS) [BW] Brain Health) is matched to the rule, then the field “Birth Date” is shown.

Screenshot 2: When CP name (Accreta Current) is not matched to the rule, then the field “Birth Date” is not shown or hide.

Example 7: Show custom field if the specimen type is ‘Fixed Tissue Block' or 'Fixed Tissue Slide’

{
      "name" : "specimen.extensionDetail.attrsMap.clinical_block_identifier",
      "caption" : "Clinical Block Identifier",
      "type" : "text",
      "optional" : true,
      "showInOverviewIf" : "useShowIf",
      "showIf" : {
        "op" : "OR",
        "rules" : [ {
          "field" : "specimen.type",
          "op" : "==",
          "value" : "'Fixed Tissue Block'"
        },
        {
          "field" : "specimen.type",
          "op" : "==",
          "value" : "'Fixed Tissue Slide'"
        } ]
      }
    }

Example JSON

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Show Fields Based on the Value in the Dropdown

'Contains' Condition

'Is one of the value' Condition

Example JSON