Wednesday, March 21, 2012

Urgent AutocompleteExtender Does not work

Hello ,

I have aproblem with autocomplete extender in Vb website , it does not work at all never call the webservice

here is the code for the page

<asp:TextBox id="TxtITEM_NO" runat="server" CssClass="dbn_tb" Width="225px" autocomplete="off"></asp:TextBox>
<ajaxToolkit:AutoCompleteExtender ID="AUTOCOMP" runat="server" ServicePath ="MESCService.asmx" ServiceMethod ="GetItemCompletionList"
MinimumPrefixLength="2" CompletionInterval="1000" EnableCaching="true" TargetControlID="TxtITEM_NO" CompletionSetCount="12" />

and this is the code inside MESCService.asmx

Imports System.Web
Imports System.Web.Services
Imports System.Web.Services.Protocols
Imports System.Collections.Generic

<WebService(Namespace:="http://tempuri.org/")> _
<WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Public Class MESCService
Inherits System.Web.Services.WebService

<WebMethod()> _
Public Shared Function GetItemCompletionList(ByVal prefixText As String, ByVal count As Integer) As String()
If count = 0 Then count = 20
Dim x As New ikrima.DAL.DBAccess
Dim ds As New System.Data.DataSet
ds = x.ExecuteDataSet("select ITEM_ID FROM ITEM_MASTER ")
Dim items As List(Of String) = New List(Of String)

Dim words As Data.DataRow() = ds.Tables(0).Select("ITEM_ID LIKE '" + prefixText + "%'")
Dim num, i As Integer
num = IIf(words.Length < count, words.Length, count)
For i = 0 To num - 1
items.Add(words(i).Item("ITEM_ID").ToString)
Next
Return items.ToArray
End Function

End Class

can any one help me , why this is not work ,

hi ikrima,

Add the following attribute above your webservice class

[ScriptService]

Regards,


Replace this"<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _"line of yours with -----> <ScriptService()> _


Thanks for our replies

i replace my code and change it to <scriptservice()>_ but till now it does not work , and when try to trace my code i found that the autocompleteExtender does not call the webservice , when ever all other ajaxtoolkit is running well

so what is your suggession to solve this ?


HI Ikrima,

Why do you set the propertyautocomplete="off"> ??

Regards,


HI ,

if you rfer to the samplewebsite which is download with AjaxcontrolToolkit source , you will find in the Autocomplete sample they use it ,

actually i try to remove it also but nothing happend

Thanks


Move your MESCService.asmx to your ScriptManager

e.g.

<asp:ScriptManager runat="server" ID="ScriptManager1" EnablePartialRendering="true">
<services>
<asp:servicereference path="~/MESCService.asmx" />
</services>
</asp:ScriptManager>

Hope it works. For it works. For me it does.


Sad , still not working................

Even there is no query on server or any response/request from the page it just ignore it


Sad , still not working................

Even there is no query on server or any response/request from the page it just ignore it


hi i have the same problem in c#,so if u find any solution,please post it here

thanx


replace "<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _" with "<System.Web.Script.Services.ScriptService()> _"


Have you found a solution to your problem?

I found the solution, it seems that the Function name DOES matter. Here is my webservice code returning a generic string array:

Imports

System

Imports

System.Web

Imports

System.Collections

Imports

System.Web.Services

Imports

System.Web.Script.Services

Imports

System.Web.Services.Protocols

Imports

System.Data.SqlClient

<System.Web.Script.Services.ScriptService()> _

<WebService(Namespace:=

"http://tempuri.org/")> _

<WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _

<

Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _

Public

Class WebServiceInherits System.Web.Services.WebService

<WebMethod()> _

<ScriptMethod()> _

PublicFunction GetCompletionList(ByVal prefixTextAsString,ByVal countAsInteger)AsString()Dim strArray(2)AsString

strArray(0) =

"abc"

strArray(1) =

"def"

strArray(2) =

"ghi"Return strArrayEndFunction

End

Class

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