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Question

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?

Answer 1

Just use override in 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 .

Answer 2

remove the virtual here

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

keywords can not be used together

Answer 3

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 .

Answer 4

You need to remove virtual keyword in ProcessorTest .

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