#11: removeValue can handle enumerables now

GBase/DataHandling/XmlDataHandler.cs

@@ -122,8 +122,14 @@ namespace GBase.DataHandling
             if (value == null)
                 return;
 
+            string valueString;
+            if (typeof(TProperty) != typeof(string) && value is IEnumerable enumerable)
+                valueString = enumerable.ToGBaseString();
+            else
+                valueString = value.ToString();
+
             await _cache.TryRemoveValue<T, TProperty>(propertyName, value);
-            await _xmlDataWriter.Remove<T, TProperty>(propertyName, value.ToString());
+            await _xmlDataWriter.Remove<T, TProperty>(propertyName, valueString);
         }
 
         /// <summary>