-

Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs

@@ -117,6 +117,7 @@ namespace SqlSugar
         }
         public virtual ISugarQueryable<T> Where(string whereString, object whereObj = null)
         {
+            if (whereString.IsValuable())
                 this.Where<T>(whereString, whereObj);
             return this;
         }