Take integer value from database and cast it to Enum

Question

I'm all new to Enum types and seems like I can't figure something out in my project. I was asked to use Enum for creating a combobox with pre-defined values. What I did was:

namespace Models
{
    public class LastStatus
    {
        public LastStatus()
        {
        }

        public int ID { get; set; }
        public enum description { inProgress, done, accepted }

        public description desc;
        public int constant { get; set; }

    }
}

And this is my method for converting the DB model to my own model before I use them: (e.g add them to a List and then iterate over it to add to the combobox's listitems in aspx.cs side)

private Models.LastStatus ConvertStatusDbToObject(DBModel.myDB.LastStatu status)
        {
            Models.LastStatus statusObject = new Models.LastStatus();
            statusObject.ID = status.ID;
            //statusObject.description = status.description;
            (LastStatus.description)statusObject.desc = (LastStatus.description)status.@const;
            statusObject.constant = status.@const;

            return statusObject;
        }

I get the error on this line:

(LastStatus.description)statusObject.desc = (LastStatus.description)status.@const;

when trying to cast the integer value of the DB Model to my enum type. Isn't desc a property?

Error 23 The left-hand side of an assignment must be a variable, property or indexer

object o = new object(); o = (int)1; is OK but this is not object o = new object(); (int)o = (int)1; — EZI
– EZI, Commented Jul 23, 2015 at 5:57

Sweeper · Accepted Answer · 2015-07-23 06:00:22Z

4

Change (LastStatus.description)statusObject.desc = (LastStatus.description)status.@const; to statusObject.desc = (LastStatus.description)status.@const;

You don't need to cast the property itself!

answered Jul 23, 2015 at 6:00

Sweeper

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1 Comment

ardatosun Over a year ago

Wow I can't believe I didn't realize that. I guess I'm tired after all during this internship :D Thanks for pointing it out!

Zohar Peled · Accepted Answer · 2015-07-23 06:03:32Z

1

First, assign integer values to your enum values when declaring the enum. for example:

public enum description { inProgress = 0, done = 1, accepted = 2}

Second, I would recommend against having public fields in your class. change

public description desc;

to

public description desc { get; set; };

edited Jul 23, 2015 at 6:03

answered Jul 23, 2015 at 6:00

Zohar Peled

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5 Comments

ardatosun Over a year ago

thanks for the suggestions. enums start from 0 by default,no?

Zohar Peled Over a year ago

Actually yes, I forgot about that. However the second recommendation is still valid. Check out Sweeper's answer, I think he got it right :-)

ardatosun Over a year ago

Yeah, will accept as an answer as soon as Stackoverflow lets me :)

Sweeper Over a year ago

What do you mean "as soon as Stackoverflow lets me "? You can always do that, can't you?

ardatosun Over a year ago

Well there is a cooldown before you get to accept an answer. Thanks for the fast reply again!

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