Problem updating SQL database

[rangerstud620]

Im using a DetailsView to update a SQL database. One row in the DetailsView contains a dropdownlist with a value = Heading and text = Headname. When the database is updated though, the Heading and Headname fields are both filled with the Heading value. I have separate parameters set up for each, so I cant figure out how both Heading and Headname are getting the same value. Im sure its something simple but I just cannot see it. Any ideas? Thanks!

<asp:TemplateField HeaderText="YP Heading" SortExpression="HEADNAME">
                    <EditItemTemplate>
                        <asp:DropDownList ID="ddlHeadings" runat="server" DataSourceID="dsHeadings" DataTextField="HEADNAME"
                            DataValueField="HEADING" Width="650px" SelectedValue=<%# Bind("HEADING","{0}") %> EnableTheming="True">
                        </asp:DropDownList><asp:SqlDataSource ID="dsHeadings" runat="server" ConnectionString="<%$ ConnectionStrings:TestCompany %>"
                            SelectCommand="SELECT [HEADING], [HEADNAME] FROM [HEADINGS] ORDER BY [HEADING]">
                        </asp:SqlDataSource>
                        &nbsp;&nbsp;
                    </EditItemTemplate>
                    
                    
                    <ItemTemplate>
                        <asp:Label ID="Label1" runat="server" Text=<%# Bind("HEADNAME") %>></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>

<asp:SqlDataSource ID="dsCompany" runat="server" ConnectionString="<%$ ConnectionStrings:TestCompany %>"
            SelectCommand="SELECT * FROM [NewReport] WHERE ([SORTCODE] = @SORTCODE) ORDER BY [LINENUMBER]" UpdateCommand="UPDATE NewReport SET HEADING = @Heading, HEADNAME = @Headname, CHANGES = @Changes, COMMENTS = @Comments WHERE SORTCODE = @Sortcode">
            <SelectParameters>
                <asp:ControlParameter ControlID="lstCompany" Name="SORTCODE" PropertyName="SelectedValue" />
            </SelectParameters>
            <UpdateParameters>
                <asp:ControlParameter ControlID="DetailsView1$ddlHeadings" Name="Headname" PropertyName="text" Type="string" />
                <asp:Parameter Name="Heading" Type="string" />
                <asp:Parameter Name="Changes" Type="string" />
                <asp:Parameter Name="Comments" Type="string" />
                <asp:Parameter Name="Sortcode" Type="string" />
            </UpdateParameters>
        </asp:SqlDataSource>