If we click DropDownList items Automatically Select Second DropdownLIst in gridview?

[hemanth sutapalli]

HI All,
Please Explain me , if we select dropdownlist automatically get second dropdownlistDetails and if we select second dropdown list automatically get third dropdownlist details. my dropdownlist control present in gridview(EditItemTemplate field) like this...

<Columns>

<asp:TemplateField HeaderText="CID">

            <ItemTemplate>

                <%#Eval("CID")%>

            </ItemTemplate>

            <EditItemTemplate>

                <asp:DropDownList ID="catep" runat="server">

                </asp:DropDownList>

            </EditItemTemplate>

        </asp:TemplateField>

        <asp:TemplateField HeaderText="CatId">

            <ItemTemplate>

                <%# Eval("CatId")%>

            </ItemTemplate>

            <EditItemTemplate>

                <asp:DropDownList ID="cat" runat="server">

                </asp:DropDownList>

            </EditItemTemplate>

        </asp:TemplateField>

        <asp:TemplateField HeaderText="CateSubId">

            <ItemTemplate>

                <%# Eval("CategorySubId")%>

            </ItemTemplate>

            <EditItemTemplate>

                <asp:DropDownList ID="subcat" runat="server">

                </asp:DropDownList>

            </EditItemTemplate>

        </asp:TemplateField>

</Columns>

Thanks&&Regards, S.Hemanth

[Ali Al Omairi Abu AlHassan]

Sir; I think you should use Cascading Dropdown[^].

Help people,so poeple can help you.

[Robert Bettinelli]

Yes.. Just to be clear the Cascading Drop Down is part of AJAX.