public static bool TryParse(string expression, out DatabaseAvailabilityGroupSubnetId subnetId)
        {
            subnetId = null;
            IPRange ipRange = null;

            if (IPRange.TryParse(expression, out ipRange))
            {
                subnetId = new DatabaseAvailabilityGroupSubnetId(ipRange);
                return(true);
            }
            return(false);
        }
        private static bool TryParse(string stringToParse, out ServiceProviderSettings settings, out string error)
        {
            settings = null;
            error    = null;
            if (string.IsNullOrWhiteSpace(stringToParse))
            {
                error = "String passed is null or empty";
                return(false);
            }
            string[] array = stringToParse.Split(new char[]
            {
                ','
            });
            if (array.Length != 4)
            {
                error = "We need a CSV with 4 values - Provider name, Provider url, IP ranges and Certificate names";
                return(false);
            }
            char[] separator = new char[]
            {
                ';'
            };
            List <IPRange>        list  = null;
            List <TlsCertificate> list2 = null;
            bool flag = true;

            if (!string.IsNullOrWhiteSpace(array[2]))
            {
                list = new List <IPRange>();
                string[] array2 = array[2].Split(separator);
                foreach (string text in array2)
                {
                    if (!string.IsNullOrWhiteSpace(text))
                    {
                        IPRange item;
                        if (IPRange.TryParse(text.Trim(), out item))
                        {
                            list.Add(item);
                        }
                        else
                        {
                            error = string.Format("{0}Invalid IP Range {1}.", error, text);
                            flag  = false;
                        }
                    }
                }
            }
            if (!string.IsNullOrWhiteSpace(array[3]))
            {
                list2 = new List <TlsCertificate>();
                string[] array4 = array[3].Split(separator);
                foreach (string text2 in array4)
                {
                    if (!string.IsNullOrWhiteSpace(text2))
                    {
                        TlsCertificate item2;
                        if (TlsCertificate.TryParse(text2.Trim(), out item2))
                        {
                            list2.Add(item2);
                        }
                        else
                        {
                            error = string.Format("{0}Invalid Tls certificate {1}.", error, text2);
                            flag  = false;
                        }
                    }
                }
            }
            if (flag)
            {
                settings = new ServiceProviderSettings(array[0].Trim(), array[1].Trim(), list, list2, stringToParse);
            }
            return(flag);
        }