Missing Using directive for hierarchical_grouping in MSDN crystal reports tutorial

Question

I was working through the MSDN tutorial for Crystal Reports, and I get to the Binding the Embedded Report to the CrystalReportViewer Control step:

When I try the build, it tells me that I am missing my using declaration for Hierarchical_Grouping class. This brings up two questions for me...

1. What is the namespace for this class definition?
2. Is there an easy way of determining the namespace of a given class?

In another answer I saw the 'ALT, SHIFT, F10' and the 'CTRL, [period]' suggestions for intellisense, but they don't work in my Visual Studio.

I'm sure I have done something ridiculously stupid....sorry in advance....

Here's the code for the form:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using CrystalDecisions.CrystalReports.Engine;
using CrystalDecisions.Shared;

namespace CrystalTest3
{
    public partial class Form1 : Form
    {
        private Hierarchical_Grouping hierarchicalGroupingReport;

        public Form1()
       {
            InitializeComponent();
        }
        private void ConfigureCrystalReports()
        {
            hierarchicalGroupingReport = new Hierarchical_Grouping();
            crystalReportViewer.ReportSource = hierarchicalGroupingReport;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            ConfigureCrystalReports(); 
        }
    }
}

Answer 1

I am assuming that you are referring to this tutorial.

The Hierarchical_Grouping seems to refer to the report file - which will contain the class named Hierarchical_Grouping. Have you added the report to your project?

The report should be somewhere in these Sample Reports Directories.