#261 – How Automatic Properties Look Under-the-Covers

The typical pattern for implementing an automatic property in a C# class is shown below–you do not need to define either a private backing variable, or the bodies of the get and set accessors.

    public class Dog
    {
        // An automatic property
        public string Name { get; set; }
    }

It’s interesting to use the IL DASM tool to see how this property is actually implemented.  Start up the IL Disassembler tool and then do a File | Open and load the .exe containing the property shown above.  You’ll see the following:

You can see the backing variable that the compiler automatically generated–k__BackingField.  You can also see the get and set accessors that the compiler automatically created, get_Name and set_Name.

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About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

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