From 4284d6e63209acb801f110771219171cf1ebf7e4 Mon Sep 17 00:00:00 2001
From: Stefan Dirix <sdirix@eclipsesource.com>
Date: Thu, 18 Apr 2024 16:09:14 +0200
Subject: [PATCH] fix label determination

---
 packages/core/src/util/label.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/packages/core/src/util/label.ts b/packages/core/src/util/label.ts
index cd5b517dc..64cd4ef2c 100644
--- a/packages/core/src/util/label.ts
+++ b/packages/core/src/util/label.ts
@@ -120,13 +120,18 @@ export const computeChildLabel = (
   rootSchema: JsonSchema,
   translateFct: Translator,
   uiSchema: UISchemaElement
-): any => {
+): string => {
   const childData = Resolve.data(data, childPath);
 
   if (!childLabelProp) {
     childLabelProp = getFirstPrimitiveProp(schema);
   }
 
+  // return early in case there is no prop we can query
+  if (!childLabelProp) {
+    return '';
+  }
+
   const currentValue = get(childData, childLabelProp, '');
 
   // check whether the value is part of a oneOf or enum and needs to be translated