Am using asp.net 4.5.2 with AJAXCONTORLKIT 17.0,

I have implemented an Ajax autocomplete Text function that is not working properly, it returns Html code instead of Data from from a table.

I hava also tried using a webservice, but its not working.

I have done research on the internet, but it has failed.

The same code works in frame work 3.5 but not in 4.5.2

Below is the forms markup

<div>
    <asp:ScriptManager ID="ScriptManager1" runat="server">
        <Services>
            <asp:ServiceReference Path="~/BIO/Adminstructures.asmx" />
        </Services>
    </asp:ScriptManager>
    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><br />
    <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox><br />
    <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
    <br />
    <ajaxToolkit:FilteredTextBoxExtender ID="Filter1" runat="server" TargetControlID="TextBox3"
        ValidChars="0123456789." />
    <ajaxToolkit:TextBoxWatermarkExtender runat="server" BehaviorID="TextBox2_TextBoxWatermarkExtender"
        TargetControlID="TextBox3" ID="TextBoxWatermarkExtender2" WatermarkText="Only numers" />
    <asp:TextBox ID="TextBox4" runat="server" BackColor="Yellow"></asp:TextBox>
    <ajaxToolkit:CalendarExtender ID="Cald1" TargetControlID="TextBox4" runat="server" />
    <asp:TextBox ID="TxtDistrict" runat="server"></asp:TextBox>
    <ajaxToolkit:AutoCompleteExtender ID="AutoCompleteExtender1" runat="server" Enabled="True"
        CompletionInterval="100" ServicePath="~/BIO/Adminstructures.asmx" EnableCaching="true"
        ServiceMethod="SearchDistricts" TargetControlID="TxtDistrict" FirstRowSelected="false"
        MinimumPrefixLength="1">
    </ajaxToolkit:AutoCompleteExtender>
    <ajaxToolkit:TextBoxWatermarkExtender runat="server" BehaviorID="TxtDistrict_TextBoxWatermarkExtender"
        TargetControlID="TxtDistrict" ID="TextBoxWatermarkExtender3" WatermarkText="Autocomplete by webservice method" />
    <br />
    <br />
    <asp:TextBox ID="TxtDistrict2" runat="server"></asp:TextBox>
    <ajaxToolkit:AutoCompleteExtender ID="extender2" runat="server" TargetControlID="TxtDistrict2"
        ServiceMethod="GetCompletionList" FirstRowSelected="false" CompletionInterval="10"
        EnableCaching="false" MinimumPrefixLength="1">
    </ajaxToolkit:AutoCompleteExtender>
</div>

Regards,

Katimbo Allan