Updating a website with data from an asynchronously called Webservice

Hi!

I wrote the following code to update a label on my aspx-page with data retrieved by an asynchronously called Webservice.

Protected Sub Page_Load(ByVal senderAs Object,ByVal eAs System.EventArgs)Handles Me.LoadIf Not Page.IsPostBackThen Dim wsAs localhost.WebServiceTest =New localhost.WebServiceTestDim ResultAs IAsyncResult = ws.Beginmessages(AddressOf renderResult, ws)End If End Sub Private Sub renderResult(ByVal ResultAs IAsyncResult)Dim wsAs localhost.WebServiceTest =CType(Result.AsyncState, localhost.WebServiceTest) Label1.Text = ws.Endmessages(Result)End Sub

The problem is that the Label (which is surrounded by an Updatepanel) does not get updated with the value returned by the Webservice although "renderResult" is executed correctly. (Maybe the problem is that the asynchronous function is called in a different thread on the webserver?)

Do you have any ideas or solutions to solve this issue?

Thank you

No suggestions?

Try doing your asynchronous webservice calls from the client-side rather than from the server.

http://www.asp.net/learn/ajax-videos/video-79.aspx

http://www.asp.net/AJAX/Documentation/Live/tutorials/ASPNETAJAXWebServicesTutorials.aspx

As DisturbedBuddha points out, you would probably want to do this sort of thing client side (remember the runat=server thing).

But, if youreally want to do this server side, my first question would be - is the updatepanel inside a form?

Cheers

Martin

Thank you for your help.

Calling the webservice client-side worked!

Upgrade to Ajax extensions 1.0 problem

I'm having a problem with upgrading my website to the 1.0 release of Ajax. I've tried to remove all traces of Microsoft.Web and replaced it with System.Web but somewhere there is a reference to Microsoft.Web and I can't find it. I've searched the entire solution dir and its not mentioned anywhere in there. I've searched the registry and its in there a few times but only in reference to my searches or old projects. I know that my machine is configured properly because I can add a new Ajax enabled website to my solution and the works fine. Below is the error I'm getting and my Web.config. There seems to be a "post-policy reference" to Microsoft.Web.Extensions but I haven't the faintest idea where that is coming from. Please help!

Server Error in '/DanTest' Application.
------------------------
Could not load file or assembly 'Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Assembly Load Trace: The following information can be helpful to determine why the assembly 'Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' could not be loaded.
=== Pre-bind state information ===
LOG: User = TBS-7AF178B6C10\ASPNET
LOG: DisplayName = Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
 (Fully-specified)
LOG: Appbase = file:///C:/STProjects/EA/Mozart/Sources/Mozart_DMZ/Mozart.Website/
LOG: Initial PrivatePath = C:\STProjects\EA\Mozart\Sources\Mozart_DMZ\Mozart.Website\bin
Calling assembly : (Unknown).
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\STProjects\EA\Mozart\Sources\Mozart_DMZ\Mozart.Website\web.config
LOG: Using host configuration file: C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet.config
LOG: Using machine configuration file from C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\config\machine.config.
LOG: Post-policy reference: Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
LOG: Attempting download of new URL file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/Temporary ASP.NET Files/dantest/bc4e166c/738e1bd2/Microsoft.Web.Extensions.DLL.
LOG: Attempting download of new URL file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/Temporary ASP.NET Files/dantest/bc4e166c/738e1bd2/Microsoft.Web.Extensions/Microsoft.Web.Extensions.DLL.
LOG: Attempting download of new URL file:///C:/STProjects/EA/Mozart/Sources/Mozart_DMZ/Mozart.Website/bin/Microsoft.Web.Extensions.DLL.
LOG: Attempting download of new URL file:///C:/STProjects/EA/Mozart/Sources/Mozart_DMZ/Mozart.Website/bin/Microsoft.Web.Extensions/Microsoft.Web.Extensions.DLL.
LOG: Attempting download of new URL file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/Temporary ASP.NET Files/dantest/bc4e166c/738e1bd2/Microsoft.Web.Extensions.EXE.
LOG: Attempting download of new URL file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/Temporary ASP.NET Files/dantest/bc4e166c/738e1bd2/Microsoft.Web.Extensions/Microsoft.Web.Extensions.EXE.
LOG: Attempting download of new URL file:///C:/STProjects/EA/Mozart/Sources/Mozart_DMZ/Mozart.Website/bin/Microsoft.Web.Extensions.EXE.
LOG: Attempting download of new URL file:///C:/STProjects/EA/Mozart/Sources/Mozart_DMZ/Mozart.Website/bin/Microsoft.Web.Extensions/Microsoft.Web.Extensions.EXE.
Stack Trace:
[FileNotFoundException: Could not load file or assembly 'Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.]
 System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +0
 System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +211
 System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +141
 System.Reflection.Assembly.Load(String assemblyString) +25
 System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +32
[ConfigurationErrorsException: Could not load file or assembly 'Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.]
 System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +596
 System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +70
 System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +177
 System.Web.Compilation.BuildProvidersCompiler..ctor(VirtualPath configPath, Boolean supportLocalization, String outputAssemblyName) +180
 System.Web.Compilation.CodeDirectoryCompiler.GetCodeDirectoryAssembly(VirtualPath virtualDir, CodeDirectoryType dirType, String assemblyName, StringSet excludedSubdirectories, Boolean isDirectoryAllowed) +347
 System.Web.Compilation.BuildManager.CompileCodeDirectory(VirtualPath virtualDir, CodeDirectoryType dirType, String assemblyName, StringSet excludedSubdirectories) +125
 System.Web.Compilation.BuildManager.CompileCodeDirectories() +525
 System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +448
[HttpException (0x80004005): Could not load file or assembly 'Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.]
 System.Web.Compilation.BuildManager.ReportTopLevelCompilationException() +57
 System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +612
 System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters) +456
[HttpException (0x80004005): Could not load file or assembly 'Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.]
 System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +3434959
 System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +88
 System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +252

Here is my web.config:

<?xml version="1.0"?>
<configuration>
<configSections>
<sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
<sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere"/>
<section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
<section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
</sectionGroup>
</sectionGroup>
</sectionGroup>
</configSections>
<connectionStrings configSource=".\\App_Data\\EnvironmentSettings.xml"/>
<!-- The following is need so that an unauthenticate user has access to the AJAX script files. -->
<location path="ScriptResource.axd">
<system.web>
<authorization>
<allow users="*"/>
</authorization>
</system.web>
</location
<system.web>
<authorization>
<deny users="?"/>
</authorization>
<customErrors mode="Off"/>
<authentication mode="Forms">
<forms name="Mozart" defaultUrl="/Default2.aspx" timeout="1440"/>
</authentication>
<pages>
<controls>
<add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</controls>
</pages>
<compilation debug="true">
<assemblies>
<add assembly="System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Configuration, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Xml, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Web.Services, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.DirectoryServices, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.DirectoryServices.Protocols, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.EnterpriseServices, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.ServiceProcess, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Web.RegularExpressions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Web.Extensions.Design, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add assembly="System.Drawing.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/></assemblies>
</compilation>
<httpHandlers>
<remove verb="*" path="*.asmx"/>
<add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false"/>
</httpHandlers>
<httpModules>
<add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</httpModules>
<!-- ___________________________ Profiles ___________________________ -->
<profile defaultProvider="MozartProfileSqlProvider">
<providers>
<clear/>
<add name="MozartProfileSqlProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="EnvironmentSettings.Mozart" applicationName="Mozart"/>
</providers>
<properties>
<add name="OrganizationId"/>
<add name="BackgroundColor"/>
<group name="PhoneNumbers">
<add name="Home"/>
<add name="Mobile"/>
<add name="Business"/>
</group>
</properties>
</profile>
<!-- ___________________________ Membership ___________________________ -->
<membership defaultProvider="MozartMembershipSqlProvider">
<providers>
<add name="MozartMembershipSqlProvider" connectionStringName="EnvironmentSettings.Mozart" applicationName="Mozart" type="System.Web.Security.SqlMembershipProvider" requiresUniqueEmail="false" minRequiredPasswordLength="5" minRequiredNonalphanumericCharacters="0"/>
</providers>
</membership>
<!-- ___________________________ Roles ___________________________ -->
<roleManager enabled="true" defaultProvider="MozartAspNetSqlRoleProvider">
<providers>
<add applicationName="Mozart" connectionStringName="EnvironmentSettings.Mozart" name="MozartAspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
</providers>
</roleManager>
</system.web>
<!-- ___________________________ SiteMap ___________________________ -->
<location allowOverride="false">
<system.web>
<siteMap defaultProvider="MozartSiteMapProvider" enabled="true">
<providers>
<add name="MozartSiteMapProvider" description="Mozart SiteMap provider" type="System.Web.XmlSiteMapProvider" securityTrimmingEnabled="true" siteMapFile="Web.sitemap"/>
</providers>
</siteMap>
</system.web>
</location>
<system.web.extensions>
<scripting>
<webServices>
<!-- Uncomment this line to customize maxJsonLength and add a custom converter -->
<!--
 <jsonSerialization maxJsonLength="500">
 <converters>
 <add name="ConvertMe" type="Acme.SubAcme.ConvertMeTypeConverter"/>
 </converters>
 </jsonSerialization>
 -->
<!-- Uncomment this line to enable the authentication service. Include requireSSL="true" if appropriate. -->
<!--
 <authenticationService enabled="true" requireSSL = "true|false"/>
 -->
<!-- Uncomment these lines to enable the profile service. To allow profile properties to be retrieved
 and modified in ASP.NET AJAX applications, you need to add each property name to the readAccessProperties and
 writeAccessProperties attributes. -->
<!--
 <profileService enabled="true"
 readAccessProperties="propertyname1,propertyname2"
 writeAccessProperties="propertyname1,propertyname2" />
 -->
</webServices>
<!--
 <scriptResourceHandler enableCompression="true" enableCaching="true" />
 -->
</scripting>
</system.web.extensions>
<system.webServer>
<validation validateIntegratedModeConfiguration="false"/>
<modules>
<add name="ScriptModule" preCondition="integratedMode" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</modules>
<handlers>
<remove name="WebServiceHandlerFactory-Integrated"/>
<add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</handlers>
</system.webServer>
</configuration
------------------------
Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.210

I fixed it. I had a web.config in the root of my local webserver (C:\inetpub\wwwroot) that was messing it up when I launched from VS. If I set the project to the default server it worked fine. I deleted the web.config in the root and now both work fine.

Upgrading a plain old ASP.NET Web Site to ASP.NET Ajax 1.0 RTM

Hello,

I have a plain old ASP.NET 2.0 website, which I'd like to update to use ASP.NET Ajax. I followedhttp://ajax.asp.net/documentation/Migration_Guide_CTP_to_RTM.aspx and updated the web.config file, but I keep getting ["Sys.Application" is null or not an object] script errors when I run the site. My site requires some custom config sections and a whole lot of external references so I'd rather avoid deleting my web.config and start all over. Is there any possible reason for ASP.NET Ajax not kicking in, how can I solve this? This is the first installation of ASP.NET Ajax on this machine (so no CTP or Beta has been installed before)

Kind regards,

Wouter

Did you add a reference to System.Web.Extensions for your website? Did you register any java script files you have with the scriptmanager?

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.

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

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

, 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

Urgent Help: Update Panel and Form Templates? - Need to finish this week ends.

Hello

I am new to ASP .NET so just wanted to confirm.

I actually tried a lot in regular asp .net website to update my textboxes when selecting a value from dropdown list.

but no luck.

so is update panel better in these cases. and does this work without having to code..

because i have two weeks left to this one page. and i was stuck on updating values of text boxes, checkboxes fields when updating ddl. i have ddl inside the formview template.

so when using update pannel: ddl will be outside the formview template??

how does it work basically??

please help asap.

thanks a lot all.

looking forward for reply.

surbhi

Have you use the OnSelectedIndexChanged event of the DDL yet ? Make sure you set the DDL AutoPostBack = true

No. I dont know how to use that event.

I am new and using VB for coding ..

Dont know how to use C#..

How do i use findcontrol statements in vb?

help asap. i have to finish it this week..

Thanks

Surbhi

You would probably benefit the most by looking at tutorials online then waiting for people to reply. Questions about events and c# or vb.net syntax can easily be answered by searching.

Well.. Ofcourse I have been looking online as well.

Not finding enough information on how to use this event..

Meanwhile here is my vb code for ItemUpdating event..

I dont know where I am making mistake. Correct me.. and I am using Formview, Sql DataSource.

and DropDownList which has project numbers. I just want to display new values when I select a different value in DDL. I have AutoPostBack=true and AppendDataBound =True..

Here is the code:

Private

Sub FormView1_ItemUpdating(ByVal senderAs Object,ByVal eAs FormViewUpdateEventArgs)'Dim ProjectNameTextBox As TextBox = FindControl("ProjectName")'Dim FormView1 As FormView = CType(sender, FormView)Dim rowViewAs DataRowView = CType(FormView1.DataItem, DataRowView)Dim rowAs FormViewRow = FormView1.RowDim ProjectNameTextBoxAs TextBox = CType(row.FindControl("ProjectName"), TextBox)

e.NewValues(

"ProjectName") = CType(row.FindControl("ProjectName"), TextBox)

ProjectNameTextBox.Text = rowView(

"ProjectName").ToString()

end sub