using System;

public class Program

{

    public static void Main()

    {

        var tokenHI = "361234567890123456789012                     ";

        var token = new TokenHI(tokenHI);

        Console.WriteLine(token.Length);

        Console.WriteLine(token.TransactionLinkId.Trim().Length);

    }

}

​

terminalCommModelConfiguration = terminalCommModelConfiguration

    .OrderBy(item => string.IsNullOrWhiteSpace(item.TransactionType)) // Non-null/whitespace TransactionType first

    .ThenBy(item => string.IsNullOrWhiteSpace(item.Dcc)) // Non-null/whitespace Dcc first

    .ThenBy(item => item.CardOriginPartID == null) // Non-null CardOriginPartID first

    .ThenBy(item => item.CardTypePartID == null) // Non-null CardTypePartID first

    .ThenBy(item => item.CardDINPartID == null) // Non-null CardDINPartID first

    .ToList();