diff --git a/src/main/webapp/resources/js/base/dataset.js b/src/main/webapp/resources/js/base/dataset.js
index 38f92b3..d45ff7c 100644
--- a/src/main/webapp/resources/js/base/dataset.js
+++ b/src/main/webapp/resources/js/base/dataset.js
@@ -544,7 +544,7 @@ class Dataset {
 	
 	_getDataItems(obj, option) {
 		obj = obj || [];
-		let array = Array.isArray(obj) ? obj : null;
+		let array = Array.isArray(obj) ? [obj] : null;
 		if (!array && this.conf.dataGetter)
 			array = this.conf.dataGetter(obj) || [];
 		array = array || [];