Heirarchy in DataGridView

[C# Programming]

Dear Fellows,

I have an xml file



Beginning c#



Beginning ASP.NET WITH C#





master in c#



master ASP.NET WITH C#





First I only want to display its publishers name in datagridview. When a user press any publisher name he will be able to see name of books in datagridview below the publisher name on which he click.


You can say it as a tree view operations that I want to perform in datagridview.

I need your help to solve it.

I will be thankful to all those who help me.

Thank you.

Regards,
Zeeshan Ahmed.