Associate attribute with code generated property in .net

Question

I wish to set an attribute on a public property in .NET, however I do not have access to the explicit property itself, as this has been code generated in another file.

Answer 1

Since the generated class is a partial class, the following should work:

1. Create an interface that has this property declared in it, and decorate it with ValidateNonEmpty attribute.
2. Create your own partial class with same name as the AutoGenerated class, and make this implement the interface that you just created.
3. The property should now be decorated with that attribute

For example:

// Decorate the properties with attributes as required
public interface IMyInterface
{
    [ValidateNonEmpty("Name is required")]
    string Name { get; set; }
}

// This is the partial class I created, that implements the interface
public partial class MyGeneratedClass : IMyInterface
{    
}

// This is the auto-generated class
public partial class MyGeneratedClass
{
    public virtual string Name { get; set; }
}

I got this idea from geekswithblogs.