DropDown list selected item always selecting the first item on the list when when i change it to update to another value.

trying to get the value of dropdown list inside a gridview in griview's update event but the value of the dropdown keeps getting set to the first value in the dropdown list, i have enabled view state and placed the binding code in (!ISPostBack) but none of that solved my problem.

 <asp:TemplateField HeaderText ="Family Type">
                
               <HeaderTemplate>
                    <asp:Label ID ="familytype" Text="Family Type" runat="server" ForeColor="White" />
            <br />
                  <asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True">
                      <asp:ListItem Text="Candy Type" Value="1"></asp:ListItem>
                       <asp:ListItem Text="Pack Type" Value="2"></asp:ListItem>
                       <asp:ListItem Text="Wrap Type" Value="3"></asp:ListItem>
                       <asp:ListItem Text="Bag Type" Value="4"></asp:ListItem>
                       <asp:ListItem Text="None" Value="5"></asp:ListItem>
                  </asp:DropDownList>
                    <br />
                 
               </HeaderTemplate>
               <ItemTemplate>
                    <asp:Label ID="familytypeCode" runat="server" Text='<%# Eval("[Family Type]") %>'></asp:Label>
               </ItemTemplate>
                <EditItemTemplate>
                     <asp:DropDownList ID="DropDownList3" runat="server" EnableViewState="true"  AppendDataBoundItems="true" SelectedValue='<%# Bind("[Family Type]") %>'>
                      <asp:ListItem Text="Candy Type" Value=""></asp:ListItem>
                       <asp:ListItem Text="Pack Type" Value=""></asp:ListItem>
                       <asp:ListItem Text="Wrap Type" Value=""></asp:ListItem>
                       <asp:ListItem Text="Bag Type" Value=""></asp:ListItem>
                       <asp:ListItem Text="None" Value=""></asp:ListItem>
                  </asp:DropDownList>
                                 <%--  <asp:TextBox ID = "txtfamilytype" Text = '<%# Eval("[Family Type]") %>' runat ="server" />--%>
                              </EditItemTemplate>
                              <FooterTemplate>
                                   <asp:TextBox ID = "familytypefooter" runat ="server" />
                              </FooterTemplate>
           </asp:TemplateField>

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so i chage the dropdownlist to bag type and click on save button which fires the update and it reverts it back to candy type i am not sure why it does that. please help

Thanks