Add Dropdownlist inside GeidView in ASP.Net

<asp:TemplateField HeaderText="Complaint Status">
<ItemStyle HorizontalAlign="Left" />
<HeaderStyle HorizontalAlign="Left" />
<ItemTemplate>
<asp:Label ID="lblCTStatus" runat="server" Text='<%# Bind("CTStatus") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:DropDownList ID="ddlCTStatus" runat="server" DataValueField='<%# Bind("CTStatus")%>' SelectedValue='<%# Bind("CTStatus")%>'
DataTextField='<%# Bind("CTStatus")%>'>
<asp:ListItem Text="<--Complaint Status-->" Value="-1"></asp:ListItem>
<asp:ListItem Text="Closed" Value="Closed"></asp:ListItem>
<asp:ListItem Text="Pending" Value="Pending"></asp:ListItem>
<asp:ListItem Text="WIP" Value="WIP"></asp:ListItem>
</asp:DropDownList>
</EditItemTemplate>
</asp:TemplateField>