A field initializer cannot reference the non-static field, method, or property controller

Question

5.00/5 (1 vote)

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C#

namespace MeetingScheduler.Controllers
{
    public class EventsController : ApiController
    {
        EmailAddress[] emailAddress = new EmailAddress[]
        {
            new EmailAddress { Address = "hello@hello.com", Name = "helloname" }
        };

        Attendee[] attendees = new Attendee[]
        {
            new Attendee { EmailAddresses = emailAddress , Type = "user"}
        };

        Event[] events = new Event[]
        {
            new Event { Id = 1, Subject = "Hello World", Start = DateTime.Parse("2019-07-31 18:00:00"), End = DateTime.Parse("2019-07-31 20:00:00"), Location = "NCS Hub", Attendees = attendees }
        };

}
}

Can anyone tell me the correct way to store the emailAddress into Attendee?

What I have tried:

no idea. I have try to look for example online using the error message but did not find anything similar.

Posted 31-Jul-19 2:33am

Tommy Loh

Updated 1-Aug-19 9:54am

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Comments

Richard MacCutchan 31-Jul-19 9:28am

The error message tells you what is wrong. Attendee cannot reference the value from emailAddress at this time, as it is not a static value. Similarly Event cannot reference attendees.

3 solutions

Solution 4

Based on the direction you appear to be going, you need to add an "AddAttendee" method to your EventsController class; e.g.

C#

public bool AddAttendee( string email, ...) {

   // Duplicate check
   ...
   attendees.Add( new Attendee(...));
   return true;  // Added.
}

Posted 31-Jul-19 5:03am

Gerry Schmitz

Solution 5

Your intent is not clear here: do you want a Class instance for each Event, or, do you want a Class that will contain all the Events ?

Consider the different ways you can create default values for Class Properties. Assume you have this simple Class:

public class EmailAddress
{
    public EmailAddress(){}

    public string Address { get; set; }
    public string Name { get; set; }
}

// set default values in ctor
public EmailAddress(string address = "hello@hello.com", string name = "helloname")
{
    Address = address;
    Name = name;
}

// with c# >= 6 " : set default values in auto-property declaration
public EmailAddress(string address, string name) : this()
{
    if (address != null) Address = address;
    if (name != null) Name = name;
}

public string Address { get; set; } = "hello@hello.com";
public string Name { get; set; } = "helloname";

Posted 1-Aug-19 9:54am

BillWoodruff

Updated 1-Aug-19 9:56am

v2

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Benktesh Sharma · Accepted Answer · 2019-07-31T04:12:00

Can define the variables and initialize them in the constructor.

public class EventsController : ApiController
    {
        private EmailAddress[] emailAddress;
        private Attendee[] attendees;
        private Event[] events;

        public EventsController()
        {

            EmailAddress[] emailAddress = new EmailAddress[]
            {
                new EmailAddress { Address = "hello@hello.com", Name = "helloname" }
            };

            Attendee[] attendees = new Attendee[]
            {
                new Attendee { EmailAddresses = emailAddress , Type = "user"}
            };

            Event[] events = new Event[]
            {
                new Event { Id = 1, Subject = "Hello World", Start = DateTime.Parse("2019-07-31 18:00:00"), End = DateTime.Parse("2019-07-31 20:00:00"), Location = "NCS Hub", Attendees = attendees }
            };

        }

    }

A field initializer cannot reference the non-static field, method, or property controller

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A field initializer cannot reference the non-static field, method, or property controller

3 solutions

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Solution 5

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