I referenced this link: https://learn.microsoft.com/en-us/dotnet/desktop/winforms/controls/how-to-customize-sorting-in-the-windows-forms-datagridview-control?view=netframeworkdesktop-4.8 to do the method of sorting multiple columns. I think that it’s a usage of decorator pattern. Is my opinion correct? And if it’s true, what is the main components of that code in decorator pattern.Please give your opinion.
Thanks for reading.

I want to do the decorator pattern in my project.