/// <summary> /// Validates if a string is a valid DevExpress Criteria, that can be used with rules or other filter controls /// </summary> /// <param name="filterString">The string that will be tested as a valid criteria</param> /// <param name="IgnoreNullOrEmpty">Indicates if null or empty strings are ignored (default is false)</param> /// <returns>True or false depending if the string is valid</returns> public static bool ValidateStringAsFilterCriteria(string filterString, bool IgnoreNullOrEmpty = false) { if (string.IsNullOrEmpty(filterString) && !IgnoreNullOrEmpty) { return(false); } CriteriaParser.Parse(filterString, out OperandValue[] opps); if (opps.Any(o => o.Value == null)) { return(false); } return(true); }