Merge pull request #103777 from dciborow/patch-9

Update microsoft-common-dropdown.md

Author: Jak-MS

articles/azure-resource-manager/managed-applications/microsoft-common-dropdown.md

@@ -45,7 +45,7 @@ When filtering is enabled, the control includes a text box for adding the filter
     "type": "Microsoft.Common.DropDown",
     "label": "Example drop down",
     "placeholder": "",
-    "defaultValue": "Value two",
+    "defaultValue": ["Value two"],
     "toolTip": "",
     "multiselect": true,
     "selectAll": true,