- Added the multiple value selection

src/Form/UiSelect.php

@@ -79,6 +79,11 @@ class UiSelect extends UiElement implements Extension {
     
     protected function isSelected($check, $value, bool $strict = true) : bool
     {        
+        if ( is_array($value) ) {
+            return in_array($check, $value, $strict);
+        }
+
+
         return $strict ? $check === $value : $check == $value;
     }
 }