What do you mean? I assume that you are using the RowUpdating event to facilitate the Insert (though it doesn't matter) so are you asking that when the event handler is called you want to grab a value from the query string and drop it into an insert command inside your event handler?
================================================== =========
Read this if you want to know how to get a correct reply for your question:
http://www.catb.org/~esr/faqs/smart-questions.html
================================================== =========
Technical Editor for:
Professional Search Engine Optimization with ASP.NET
Professional IIS 7 and ASP.NET Integrated Programming
Wrox Blox: Introduction to Google Gears
Wrox Blox: Create Amazing Custom User Interfaces with WPF and .NET 3.0
================================================== =========