AutoComplete Extender , Web Service Not Firing :(

Question

User1208695299 posted

Hi all

Here i had written code for AutoComplete... when i enter something in textbox that full row will went off...
here .aspx  code

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
 <asp:TemplateField HeaderText="Mode">
                            <ItemTemplate>
                                <asp:ScriptManagerProxy ID="ScriptManagerProxy3" runat="server">
                                    <Services>
                                        <asp:ServiceReference Path="~/WebService1.asmx" />
                                    </Services>
                                </asp:ScriptManagerProxy>
                                <asp:TextBox ID="txtFinancialInstrumentName"  runat="server" AutoPostBack="true" Text='<%# Bind("FinancialInstrumentName")%>' OnTextChanged="TxtReceipt_TextChanged" Columns="15" MaxLength="10"></asp:TextBox>
                                <asp:AutoCompleteExtender ID="txtFinancialInstrumentName_AutoCompleteExtender" FirstRowSelected="true" runat="server" CompletionInterval="1" CompletionSetCount="10" DelimiterCharacters="" Enabled="True" MinimumPrefixLength="1" ServiceMethod="GetFinList" ServicePath="~/WebService1.asmx" TargetControlID="txtFinancialInstrumentName" UseContextKey="True" EnableCaching="true" ViewStateMode="Enabled"  >
                                </asp:AutoCompleteExtender>
                            </ItemTemplate>
                            <HeaderStyle HorizontalAlign="Left" />
                            <ItemStyle HorizontalAlign="Left" />               
                        </asp:TemplateField>

And my Web Service Page is WebService1.asmx

Imports System.Web.Services
Imports System.Web.Services.Protocols
Imports System.ComponentModel
Imports Rashmika.Healthcare.Library

' To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
' <System.Web.Script.Services.ScriptService()> _
<System.Web.Services.WebService(Namespace:="http://tempuri.org/")> _
<System.Web.Services.WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _
<ToolboxItem(False)> _
Public Class WebService1
    Inherits System.Web.Services.WebService
   
    <WebMethod()> _
    Public Function HelloWorld() As String
        Return "Hello World"
    End Function

    <System.Web.Services.WebMethod> _
   <System.Web.Script.Services.ScriptMethod> _
    Public Shared Function GetFinList(ByVal prefixText As String) As List(Of String)
        Dim List As List(Of FinancialInstrument) = Finance.FilterByName(prefixText.Trim)
        Dim ReturnList As New List(Of String)
        For Each FinancialInstrument In List
            ReturnList.Add(AjaxControlToolkit.AutoCompleteExtender.CreateAutoCompleteItem(FinancialInstrument.Name, FinancialInstrument.Id))
        Next
        Return ReturnList
    End Function

    <System.Web.Services.WebMethod> _
    <System.Web.Script.Services.ScriptMethod> _
    Public Shared Function GetBankList(ByVal prefixText As String) As List(Of String)
        Dim List As List(Of Bank) =Bank.FilterByName(prefixText.Trim)
        Dim ReturnList As New List(Of String)
        For Each Bank In List
            ReturnList.Add(AjaxControlToolkit.AutoCompleteExtender.CreateAutoCompleteItem(Bank.Name, Bank.Id))
        Next
        Return ReturnList
    End Function
End Class

Answer 1

User1140095199 posted

Hi,

Firstly Use the AjaxToolkitManger.

<ajaxToolkit:ToolkitScriptManager ID="ajt1" runat="server">
</ajaxToolkit:ToolkitScriptManager>

It is prefered to use AjaxToolScriptManager if you are using Ajax Controls.
Secondly, use proper TagPrefix:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="TryOuts.Default1" %>
<%@ Register tagPrefix="ajaxToolkit" assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" %>

Then use ajaxToolKit instead of asp as prefix for ajax controls:

<ajaxToolkit:AutoCompleteExtender ID="ac1" runat="server" ></ajaxToolkit:AutoCompleteExtender>

Add the Register and use proper tagPrefix.
Best Regards!

Answer 2

User1208695299 posted

@Sam - MSFT

No... still i have same problem... it displaying every thing in gridview(Textbox and all), but auto-complete not working and even not hitting web service also...

Answer 3

User1208695299 posted

@Sam - MSFT

If i use <ajaxToolkit:ToolkitScriptManager ID="ajt1" runat="server"> </ajaxToolkit:ToolkitScriptManager>

It showes an error like this while accessing gridview "Only one instance of a ScriptManager can be added to the page." in this code

 With gvReceiptDetail
                .DataSource =Receipt.OrderById
                .DataKeyNames = Keys
                .Visible = True
                .DataBind()
            End With

Answer 4

User1140095199 posted

Hi,

Yes, that's right. Either use AjaxToolKitManager or ScriptManager don't use both. We can only use one script Manage in a ASP page. Since you have used Ajax controls so I suggested you to use AjaxToolKitManager.

Regards!