How to use C# readonly property? Using get set or lambda?

Question

namespace BrowserCompatabilityTests
{
    public static class Selectors
    {
        public static string activateDeviceButton = "#root > div > div > div > 
        div.row.activate--full-page > div:nth-child(2) > form > 
        div.form__actions.flex > button";
    }
}

I was asked to update this activateDevice field to a readonly getter property. Is there a C# convention to use {get,set} or lambda?

https://stackoverflow.com/questions/2719699/when-should-use-readonly-and-get-only-properties — Seabizkit, Nov 13 '18 at 18:07

score 3 · Answer 1 · answered Nov 13 '18 at 18:02

3

Try this variant, this sets the property value exactly once.

public static string activateDeviceButton { get; } = "#root > div > div > div > div.row.activate--full-page > div:nth-child(2) > form > div.form__actions.flex > button";

answered Nov 13 '18 at 18:02

samtrion

111
6

score 2 · Answer 2 · edited Nov 13 '18 at 18:07

2

Look into getter and setter properties. Here is how it would potentially look:

public static string activateDeviceButton { get {return value;}}

edited Nov 13 '18 at 18:07

samtrion

111
6

answered Nov 13 '18 at 18:01

Chris

46
4

score 0 · Accepted Answer · answered Nov 13 '18 at 18:06

0

You may declare ReadOnly properties either with a get (without set):

public string activateDeviceButton { get{ return someValue;} }

Or with a Lambda Expression:

   public string activateDeviceButton => someValue;

answered Nov 13 '18 at 18:06

Ashkan Mobayen Khiabani

33,575
33
102
171

@cja and get only means? – Ashkan Mobayen Khiabani Nov 21 '18 at 14:24
A property with a get but not a set. readonly is a modifier applied to fields, not properties. – cja Nov 21 '18 at 14:51

How to use C# readonly property? Using get set or lambda?

3 Answers3