Search autocomplete with ASP.NET AJAX Extensions

re: Search autocomplete with ASP.NET AJAX Extensions

Michiel — Sat, 28 Oct 2006 13:27:20 GMT

Nice and simple example. No hassle with db backends to store and retrieve the searched items, simply use the profile functionality. Looks good.

re: Search autocomplete with ASP.NET AJAX Extensions

vikram — Sun, 29 Oct 2006 06:24:22 GMT

YES I CREATED SOMETHING LIKE THIS FOR MY SITE

http://www.vikramlakhotia.com/Adding_Auto_Suggest_Box_in_the_search_Box.aspx

re: Search autocomplete with ASP.NET AJAX Extensions

Ross D — Mon, 30 Oct 2006 11:46:34 GMT

I thought profile would be user specific - so would this show you what other people have searched for?

re: Search autocomplete with ASP.NET AJAX Extensions

ikrima — Mon, 30 Oct 2006 14:27:37 GMT

Can this method applied to a dropdown box which is read it's data from sqlserver ????

for example for dropdown get the customers name

re: Search autocomplete with ASP.NET AJAX Extensions

Paolo — Mon, 30 Oct 2006 17:40:01 GMT

The article could be good if only the AutoCompleteExtender existed! It seems to have been removed from the standard ASP.NET Ajax suite (it was there with Atlas). Where did it go?!?

re: Search autocomplete with ASP.NET AJAX Extensions

Daniel — Mon, 30 Oct 2006 17:56:46 GMT

One thing I'd like to see addressed is cases where the auto-complete needs additional information displayed in the drop down, but not inserted into the textbox. For example, Google's autocomplete tells you about how many results to expect. Another example- I have several apps that allow a free-text search against a database of people. Users can begin typing a first name, last name, employee Id, and a few other properties. Ideally it would drop down a full description "1234 - John Doe - Marketing", but in the end populate the textbox with only "1234". This could probably be done with the other AJAX controls, but it seems like using a Name/Value pair instead of a StringCollection would be really useful.

re: Search autocomplete with ASP.NET AJAX Extensions

BradA — Mon, 30 Oct 2006 18:51:19 GMT

Ross D - You are right, this is per user search results today...

ikrima - Yes, of course you can call against a database! Just change the implementation in the GetCompletionList() method to call against the database...

Paolo - Sorry, I should have mentioned, AutoCompleteExtender is in the Value-add CTP (http://www.microsoft.com/downloads/details.aspx?FamilyId=8A3FD0DD-D75E-4249-86DA-3D4AAC649652&displaylang=en) It will be moved to the control toolkit very soon.

Daniel - Yes, I have some ideas for how to do that... let me play around with it...

re: Search autocomplete with ASP.NET AJAX Extensions

Nate — Mon, 30 Oct 2006 19:44:01 GMT

I get this error message. Any ideas?

Compiler Error Message: CS0246: The type or namespace name 'StringCollection' could not be found (are you missing a using directive or an assembly reference?)

Source Error:

Line 27: public string[] GetCompletionList(string prefixText, int count)

Line 28: {

Line 29: StringCollection list = (StringCollection)HttpContext.Current.Profile["SearchTerms"];

Line 30: List<string> suggestions = new List<string>();

Line 31: foreach (string s in list)

re: Search autocomplete with ASP.NET AJAX Extensions

BradA — Mon, 30 Oct 2006 20:21:00 GMT

Sorry, I should have said, you need to include:

using System.Collections.Specialized;

see:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfSystemCollectionsSpecializedStringCollectionClassTopic.asp

re: Search autocomplete with ASP.NET AJAX Extensions

Chris — Tue, 31 Oct 2006 11:58:38 GMT

I too would love to see some more advanced autocomplete usage beyond the basic usage thats been around for some time. Hoping to see that in the demo.

Besides the drop/down containing more info like Daniel mentioned, I'd like to be able to populate more than one textbox with the choice. So the server needs to be able to send back more than just strings.

I also need to send the server more information than the current text to generate the list of relevant results to show. That would be great to see.

re: Search autocomplete with ASP.NET AJAX Extensions

Brian — Thu, 02 Nov 2006 17:20:12 GMT

There seems to be a bug in the autocomplete extender if you hit enter in the textbox with the textbox empty, it comes up with a javascript error: _completionListElement.childNodes[...].firstChild is null or not an object.

Search autocomplete with ASP.NET AJAX Extensions

ナオキにASP.NET（仮） — Thu, 09 Nov 2006 13:00:15 GMT

Brad Abrams からです。 Search autocomplete with ASP.NET AJAX Extensions 少し前の投稿ですが、Brad さんが AJAX Extensions

AJAX a autocomplete

Martin Knotek blog — Mon, 13 Nov 2006 09:09:59 GMT

Celkem pěkný návod na tutu funkčnost: http://blogs.msdn.com/brada/archive/2006/10/27/search-autocomplete-with-asp-net-ajax-extensions.asp

re: Search autocomplete with ASP.NET AJAX Extensions

Kent — Sat, 18 Nov 2006 01:32:54 GMT

I would love to check this out but it is not working. I have all of the web.config entries, etc. When I run the ScriptResource.axd?d=... referenced in the page source, I get:

"Object reference not set to an instance of an object. "

Stack Trace:

[NullReferenceException: Object reference not set to an instance of an object.]

System.Web.UI.Page.DecryptString(String s) +40

[TargetInvocationException: Exception has been thrown by the target of an invocation.]

System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner) +0

System.RuntimeMethodHandle.InvokeMethodFast(Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner) +72

System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks) +358

System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) +29

System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters) +17

Microsoft.Web.Handlers.ScriptResourceHandler.DecryptString(String s) +210

Microsoft.Web.Handlers.ScriptResourceHandler.System.Web.IHttpHandler.ProcessRequest(HttpContext context) +346

System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +154

System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64"

I just installed all of the latest components this AM, including the November CTP.

re: Search autocomplete with ASP.NET AJAX Extensions

damian — Sat, 18 Nov 2006 05:45:27 GMT

hello,

Where is AutoCompleteExtender in the Ajax ASP.NET? I have install ASP.NET AJAX Beta 2 an I don't have this ASP.NET AJAX AutoCompleteExtender:(

Thank's for answrs

damian

re: Search autocomplete with ASP.NET AJAX Extensions

Brad Abrams — Sat, 18 Nov 2006 06:38:21 GMT

Damian -- AutoCompleteExtender is in the "futures CTP" http://ajax.asp.net/default.aspx?tabid=47&subtabid=471

re: Search autocomplete with ASP.NET AJAX Extensions

damian — Sat, 18 Nov 2006 16:07:45 GMT

hello,

My problem is unbound;-)

Here is idea: http://forums.asp.net/thread/1464111.aspx

Brad Abrams - thank's for You too.

re: Search autocomplete with ASP.NET AJAX Extensions

cc_maxx — Mon, 20 Nov 2006 15:06:43 GMT

where is trouble with it...

Sys.ArgumentTypeException: Object of type 'Object' cannot be converted to type 'Sys.UI.DomElement'.

and I see the same problem on this page now, Brad :(

is that only my problem?

re: Search autocomplete with ASP.NET AJAX Extensions

cc_maxx — Mon, 20 Nov 2006 15:08:21 GMT

oh sorry Brad that`s ok with your page :/

re: Search autocomplete with ASP.NET AJAX Extensions

Dave Reed — Thu, 23 Nov 2006 03:22:57 GMT

Here's a extention of autocomplete that lets you do it w/o a webservice, and lets you access page state so the completion items can vary based on other controls:

http://weblogs.asp.net/infinitiesloop/archive/2006/11/15/ASP.NET-Ajax-Beta_3A00_-AutoCompleteBehavior-without-a-Web-Service.aspx

re: Search autocomplete with ASP.NET AJAX Extensions

Lee Wilson — Fri, 24 Nov 2006 13:22:28 GMT

Nice article - looking forward to more advanced features of auto complete being exploited.

It might be a good idea to ignore case when using the StartsWith method.

Also, aswell as System.Collections.Specialized - don't forget to be using System.Collections.Generic.

Lee

re: Search autocomplete with ASP.NET AJAX Extensions

BarryD — Wed, 13 Dec 2006 19:33:15 GMT

If that works for you does this mean that the current requirement to mark your service [ScriptService] is being abandoned?

re: Search autocomplete with ASP.NET AJAX Extensions

Shahzad — Thu, 14 Dec 2006 11:13:33 GMT

>>There seems to be a bug in the autocomplete >>extender if you hit enter in the textbox with the >>textbox empty, it comes up with a javascript >>error: _completionListElement.childNodes>>[...].firstChild is >>null or not an object.

Just put a span in panel u r using to the panel , which is being assigned to "CompletionListElementID" property

re: Search autocomplete with ASP.NET AJAX Extensions

vinu — Wed, 20 Dec 2006 18:06:55 GMT

i am getting this error :Microsoft JScript runtime error: 'Sys' is undefined

any idea

re: Search autocomplete with ASP.NET AJAX Extensions

macnad — Fri, 29 Dec 2006 00:10:43 GMT

vinu, try this:

http://forums.asp.net/thread/1459629.aspx

re: Search autocomplete with ASP.NET AJAX Extensions

vishal — Tue, 09 Jan 2007 16:07:19 GMT

thanx for sharing information .... its relly cool to use autocompleteextender in my project

re: Search autocomplete with ASP.NET AJAX Extensions

jspjayalath — Tue, 23 Jan 2007 08:29:28 GMT

I have implimented above code but.It does not call the web service method

re: Search autocomplete with ASP.NET AJAX Extensions

Joao — Tue, 23 Jan 2007 14:05:57 GMT

Is it possible to define the GetCompletionList method NOT as a web service.