How do I update Sample Data in C#?

How do I update Sample Data in C#?

I have this sample data. Right now it is defined in a seperate C# file like this:

Code:

    public class SampleData
    {

        public static ObservableCollection<Product> GetSampleData()
        {
            ObservableCollection<Product> teams = new ObservableCollection<Product>();
        }
    }

and I load the obsevableCollection inside GetSampleData().

It works and I am able to get the sample data anywhere in my program.

But how can I redesign this code so that I can create the sample data on the fly from outside the class?