Binding an Eval Value

See more:

C#

ASP.NET

Need some help here as to how to bind a text eval value properly in a gridview.

Please see code below.

 <asp:TemplateField HeaderText="Rate" Visible="True">
                    <ItemTemplate>
                       
                        <asp:Label ID="lblRate" runat="server"
Text='<%#GetLabelText(Eval("platinumRate"), Eval("goldRate"), Eval("silverRate"))%>'></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>

code behind is:

public string GetLabelText(Object platinumRate, Object goldRate, Object silverRate)
       {
           if (DropDownList1.SelectedValue == "Platinum")
           {
               return DataBinder.Eval(platinumRate,"platinumRate").ToString();
           }
           else if (DropDownList1.SelectedValue == "Gold")
           {
               return DataBinder.Eval(goldRate, "goldRate").ToString();
           }
           else
           {
               return DataBinder.Eval(silverRate, "silverRate").ToString();
           }

       }

At the moment I get the error:

DataBinding: 'System.Decimal' does not contain a property with the name 'platinumRate'.

Please help if you can.

Regards