Extension Method in C# 2.0

Question

What namespace do I need to get my extension to work

Here is my Extension Method

using System;
using System.Collections.Generic;
using System.Web;
using          


        

Answer 1

As JS said, C# 2.0 doesn't have extension methods.

Also that extension method would be defined as:

public static DataTable ToDataTable(this IDataReader reader)

Try calling it like:

DataReaderExtensions.ToDataTable(
   cust.GetCustomerOrderSummary((string)Session["CustomerNumber"])
   )