This post gives you a simple way of getting an address on one line, separated by commas and it ignores any blank lines.

public class Address
    public string Line1 { get; set; }
    public string Line2 { get; set; }
    public string City { get; set; }
    public string County { get; set; }
    public string PostCode { get; set; }
    public string Country { get; set; }
public string OnOneLine => string.Join(", ", ((new List() { Line1, Line2, City, County, PostCode, Country })).Where(x => !string.IsNullOrEmpty(x))); }

So now you can test it like this.

Address test1 = new Address() { Line1 = "10 Street Name", Line2 = "Smallville", City = "Big City", County = "Shire", PostCode = "WC1 1DN", Country = "United Kingdom" };
//returns: 10 Street Name, Smallville, Big City, Shire, WC1 1DN, United Kingdom

Address test2 = new Address() { Line1 = "10 Street Name", City = "Big City", PostCode = "WC1 1DN", Country = "United Kingdom" };
//returns: 10 Street Name, Big City, WC1 1DN, United Kingdom

Address test3 = new Address() { Line1 = "10 Street Name", Line2 = "Smallville", PostCode = "WC1 1DN" };
//returns: 10 Street Name, Smallville, WC1 1DN

Paul Seal

A .NET Web Developer from Derby (UK) who specialises in building Content Management System (CMS) websites using MVC with Umbraco as a framework. Paul is passionate about web development and programming as a whole. Apart from when he's with his wife and son, if he's not writing code, he's thinking about it or listening to a podcast about it.