System.Globalization.CultureTableRecord.GetCustomCultureTable C# (CSharp) Method

        private unsafe CultureTable GetCustomCultureTable(string name)
        {
            CultureTable cultureTable = null;
            
            string customCultureFile = GetCustomCultureFile(name);
            if (customCultureFile == null)
            {
                return null;
            }

            try 
            {
                cultureTable = new CultureTable(customCultureFile, false);
                if (!cultureTable.IsValid)
                {
                    // If we have invalid culture table then we have custom culture. in that case we'll try 
                    // to see if the culture name is one of the framework or synthetic cultures and then 
                    // try to create it otherwise we'll throw.
                    
                    String  defaultTableActualName;
                    int     defaultTableCultureID;
                    int     defaultTableDataItem = CultureTable.Default.GetDataItemFromCultureName(
                                                    name, out defaultTableCultureID, out defaultTableActualName);

                    if (defaultTableDataItem < 0)       // not built in framework culture
                    {
                        
                    }

                    return null;  // returning null means fallback to framework or synthetic culture.
                }
            } 
            catch (FileNotFoundException)
            {
                //
                // getting here means custom culture file get unregistered/renamed from different AppDomain/Process.
                // just update the cache to point to the empty string as subsequent calls will not bother trying again.
                //
                cultureTable = null;
            }

            return cultureTable;
        }