Remove duplicate values from dropdownlist

Sir,

Here is the dropdownlist

 <asp:DropDownList ID="drpprojname" runat="server" AutoPostBack="True" 
                                        CssClass="DropDownListStyle" 
                                        onselectedindexchanged="drpprojname_SelectedIndexChanged" Width="150px">
                                    </asp:DropDownList>

Where are the hardcoded values? In your question you said you have hardcoded 1-2-3

I had just given example..

So meaning you have not hardcoded anything?