Kabiriel Anand Raj

Split string  with comma

 List<string> value = inputValue.Trim().ToUpperInvariant().Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries).Where(r => !string.IsNullOrEmpty(r)).Select(d => d.Trim()).Distinct().ToList();
                    return String.Join(",", value.ToArray());