relative virtual path doesnt allow here

Question

I am getting this error.I am loading dynamically usercontrol with the store below

'WebServiceAdmin.asmx/SayfaKaydetAjax' virtual path doesnt allow here.

here is the my store ;

  <ext:Store ID="strSayfa" runat="server">
                    <Proxy>
                        <ext:AjaxProxy Json="true" Url="WebServiceAdmin.asmx/TumSayfalar">
                            <ActionMethods Read="POST" />
                            <API Sync="WebServiceAdmin.asmx/SayfaKaydetAjax">

                            </API>
                            <Reader>
                                <ext:JsonReader Root="d" />
                            </Reader>
                            <Writer>
                                <ext:JsonWriter Encode="true" Root="data" />
                            </Writer>
                        </ext:AjaxProxy>
                    </Proxy>
                    <SyncParameters>
                        <ext:StoreParameter Name="action" Value="operation.action" Mode="Raw" />
                    </SyncParameters>

Answer 1

here is the solution I can find

 <API Sync="~/WebServiceAdmin.asmx/SayfaKaydetAjax">