CODEWITHSUNDEEP
c#overriding
hs2d
hs2d

Reputation: 6199

C# override abstract member

Heres my code where im tryng to override SettingsFileName member:

    public class ProcessorTest: Processor
    {
        public virtual override string SettingsFileName
        {
            get { return @"C:\Settings.xml"; }
        }
    }

Heres the class where is the member:

    public abstract class Processor
    {
        /// <summary>
        /// Implement this property to enable initializing singleton from the correct file path
        /// </summary>
        public abstract string SettingsFileName { get; }
    }

But this gives me a error:

A member 'ProcessorTest.SettingsFileName' marked as override cannot be marked as new or virtual

What am i doing wrong?

Upvotes: 2

Views: 1933

Answers (4)

Krizz
Krizz

Reputation: 11542

You need to remove virtual keyword in ProcessorTest.

override means "override virtual function", so there is no need to write it again.

Upvotes: 0

Jahan Zinedine
Jahan Zinedine

Reputation: 14874

remove the virtual here

public class ProcessorTest: Processor
{
    public override string SettingsFileName
    {
        get { return @"C:\Settings.xml"; }
    }
}

keywords can not be used together

Upvotes: 4

Matten
Matten

Reputation: 17631

As it overrides an abstract Property, SettingsFileName cannot be virtual.

You cannot use the modifiers new, static, virtual, or abstract to modify an override method.

See MSDN for more information on override and this article on abstract.

Upvotes: 0

okrumnow
okrumnow

Reputation: 2416

Just use overridein the inherited class, not virtual override.

virtual marks a member as overridable, so it's used in the base class. override marks a member as overriding someone overridable. abstract implies virtual.

Upvotes: 12

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