The following code is placed a new Windows Forms App and a
DataGridView and BindingSource are dragged onto the form:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace ThrowAwayCS
{
   public partial class Form1 : Form
   {
       public Form1()
       {
           InitializeComponent();
       }

       protected override void OnShown(EventArgs e)
       {
           base.OnShown(e);

           dataGridView1.AutoGenerateColumns = true;
           dataGridView1.DataSource = bindingSource1;

           var procs = from process in
System.Diagnostics.Process.GetProcesses()
                       select process.ProcessName;

           bindingSource1.DataSource = procs;
       }
   }
}

When run, the grid does not show a ProcessName column with the names
of the processes as expected, it has a Length column with the lengths
of the names.

However, change the LINQ to the following and the correct values are
shown:

           var procs = from process in
System.Diagnostics.Process.GetProcesses()
                       select new {process.ProcessName};

Can anyone shed some light on this?  I am sure I am missing something
obvious.

Thanks,

Chris