Create HideDepnedentField.js

Client script to Hide the field if there are no dependent choices for parent field choice value

Author: LakshmiChaitanyaReddy

Client-Side Components/Client Scripts/Hide Dependent Choice field if there no dependent choices/HideDepnedentField.js

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+function onChange(control, oldValue, newValue, isLoading, isTemplate) {
+    var fieldToHide = 'subcategory'; // I have taken subcategory as an example
+    if (newValue === '') {
+        g_form.setDisplay(fieldToHide, false);
+        return;
+    }
+    var ga = new GlideAjax('NumberOfDependentChoices');
+    ga.addParam('sysparm_name', 'getCountOfDependentChoices');
+    ga.addParam('sysparm_tableName', g_form.getTableName());
+    ga.addParam('sysparm_element', fieldToHide);
+    ga.addParam('sysparm_choiceName', newValue);
+    ga.getXMLAnswer(callBack);
+
+    function callBack(answer) {
+        g_form.setDisplay(fieldToHide, parseInt(answer) > 0 ? true : false);
+    }
+
+}