ASP.NET entity framework code first foreign key on gridview - asp.net

Question

I am using this method to retrieve company from trade. How can I display company ID on GridView? This is my code to retrieve.
public List<Trade> getTrade()
{
List<Trade> trades=dbContext.trades.Include("tradeCompany")
.OrderBy(t => t.tradeDate).ToList();
return trades;
}
I bind to List at code behind... This is my gridview
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
BackColor="White" OnRowDataBound="sharesGridView_RowDataBound" BorderColor="#999999" BorderStyle="None" BorderWidth="1px"
CellPadding="3" GridLines="Vertical">
<AlternatingRowStyle BackColor="#DCDCDC" />
<Columns>
<asp:BoundField DataField="tradeDate" DataFormatString="{0:MMMM d, yyyy}"
HeaderText="Date" HtmlEncode="False" SortExpression="tradeDate" />
<asp:BoundField DataField="type" HeaderText="Type" SortExpression="type" />
<asp:BoundField HeaderText="Company" />
<asp:BoundField DataField="tradePrice" HeaderText="Price"
SortExpression="tradePrice" />
<asp:BoundField DataField="tradeQuantity" HeaderText="Quantity"
SortExpression="tradeQuantity" />
</Columns>
<FooterStyle BackColor="#CCCCCC" ForeColor="Black" />
<HeaderStyle BackColor="#000084" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" />
<RowStyle BackColor="#EEEEEE" ForeColor="Black" />
<SelectedRowStyle BackColor="#008A8C" Font-Bold="True" ForeColor="White" />
<SortedAscendingCellStyle BackColor="#F1F1F1" />
<SortedAscendingHeaderStyle BackColor="#0000A9" />
<SortedDescendingCellStyle BackColor="#CAC9C9" />
<SortedDescendingHeaderStyle BackColor="#000065" />
</asp:GridView>

Answer 1

Instead of using a BoundField you can use a template field:
<asp:TemplateField>
<itemtemplate>
<p><%#DataBinder.Eval(Container.DataItem, "Company.Id")%></p>
</itemtemplate>
</asp:TemplateField>