how to remove an attribute from a class

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1.00/5 (1 vote)

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Hi,
I have a class named Test

C#

 public class Test
    {
        public string type { get; set; }
        public string self_url { get; set; }
        public string summary_url { get; set; }
        public string description { get; set; }
        public string location_description { get; set; }
        public List<object> images { get; set; }
        public string integration_id { get; set; }
        public bool realtime_server_url_is_public { get; set; }
        public string row_id { get; set; }
        public string auction_type { get; set; }
        public string last_updated { get; set; }
        public string time_start { get; set; }
}

And I want to remove the row_id field if it is empty.
I have done the below code and its only removing the contents. what I want is that the row_id field should not seen in the class if it is empty.

Here id is the code

C#

Test lot=new Test();
if (lot.row_id  == "")
{
lot.row_id .Remove(0); 
}

Posted 18-Sep-15 2:11am

Baiju christadima

Updated 18-Sep-15 6:52am

v3

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Comments

Afzaal Ahmad Zeeshan 18-Sep-15 8:49am

Your question is unclear, you say you have a class named "Test" whereas in your code it is "Response". Also, in the code you are not at all testing the row_id. You are testing against coin_grade, what is that?

Please edit the post and make it more clear. Thank you. :-)

Richard Deeming 18-Sep-15 13:53pm

C# is a static language. You can't add or remove properties to a class at runtime in a static language.

Perhaps if you explain what you're actually trying to do, we might be able to suggest a different approach.

Sergey Alexandrovich Kryukov 18-Sep-15 18:52pm

This is not how .NET works.
—SA

Ralf Meier 20-Sep-15 10:53am

You can't remove Properties from a class. But what you can do is removing the Property from the PropertyGrid. But this also only makes sense or is realizeable by the value from another Property - not by it's own value.
So ... what exactly do you want to do ... (and why do you want to do it) ?

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F-ES Sitecore · Answer 1 · 2015-09-18T02:25:00

Solution 1

To test if the field isn't populated you can use

C#

if (!string.IsNullOrWhiteSpace(yourclass.row_id))

or change the type to "string?", but that will probably involve other changes in your code too.

Posted 18-Sep-15 2:25am

F-ES Sitecore

Comments

Richard Deeming 18-Sep-15 13:48pm

You can't use reference types with Nullable<>, so string? isn't a valid type.

(There's a proposal related to this[^] for C# 7, but there's no guarantee that it will make the cut.)