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Wednesday, March 28, 2012

calling javascript in atlas

Hi,

I want to call a javascript function when call is made to server using atlas.

For e.g. instead of using ProgressBar of atlas which makes a div tag visible till server response comes in,I want to do some other processing through a javascript function till server response comes in (like hiding button).

Is it possible ?

thanks in advance for response

hello.

yes, you can...search this forum for pagerequestmanager _inPostback...you should find 1 or 2 examples that show how to do that.

calling javascript function in atlas

Hi,

I want to call a javascript function when call is made to server using atlas.

Is it possible ?

thanks in advance for response

I believe this is not a Toolkit issue; please see FAQ topic "Posting in the right forum". Thanks!

Calling Custom Client Method with xml-script

Here is the situation, I have created a custom class that inherits from the ATLAS foundation client classes, I can initialize it with no problems with-in the xml-script, but what I want to do next is have a button call a method that of my custom client class, I know to add the button and click behavior but after that I am not sure what to declare as all the examples that I find are for web services and global javascript functions. Here is a tiny excerpt of the code I am working with to help:

I want to call MyContainer.AdjustThumbnailDimensions method and pass in the attributes from the two text form fields. Any help would be greatly apprieciated.

1<%@dotnet.itags.org. Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>23<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">4<html xmlns="http://www.w3.org/1999/xhtml">5<head runat="server">6 <link href="CSS/Thumbnail.css" rel="stylesheet" type="text/css" />7 <title>Untitled Page</title>8</head>9<body>10 <form id="form1" runat="server">11 <atlas:ScriptManager ID="ScriptManager1" runat="server" EnablePartialRendering="true" />1213 <div id="ThumbnailContainer" thumbnailHeight="150" thumbnailWidth="100">14 <div class="Thumbnail" img="Images/Space.gif" label="Test Thumbnail"></div>15 <div class="Thumbnail" img="Images/Joker.jpg" label="Joker"></div>16 <div class="Thumbnail" img="Images/Space.gif" label="Another Test"></div>17 </div>1819 height <input type="text" name="tHeight" value="150" size="4" /> width <input type="text" name="tWidth" value="100" size="4" /> <input id="adjustDimensions" type="button" value="Adjust Thumbnails" onclick="AdjustThumbnailDimensions( document.forms[0].tWidth.value, document.forms[0].tHeight.value );" />20 </form>21 <script>22My.Client.UI.MyContainer = function( associatedElement ) {23 My.Client.UI.MyContainer.initializeBase(this, [associatedElement]);2425 var m_Thumbnails = new Array();26 var m_ThumbnailHeight;27 var m_ThumbnailWidth;2829 this.initialize = function() {3031 for( var index = 0; index < associatedElement.childNodes.length; index++ ) {32 thumbnail = associatedElement.childNodes[index];33 m_Thumbnails[index] = new SGP.SPI2.Client.UI.Thumbnail( thumbnail );34 m_Thumbnails[index].initialize();3536 m_Thumbnails[index].set_ThumbnailHeight( m_ThumbnailHeight );37 m_Thumbnails[index].set_ThumbnailWidth( m_ThumbnailWidth );38 }39 }4041 this.AdjustThumbnailDimensions = function( width, height ) {4243 for( var index = 0; index < thumbnails.length; index++ ) {44 m_Thumbnails[index].set_ThumbnailHeight( height );45 m_Thumbnails[index].set_ThumbnailWidth( width );46 }4748 }4950}51My.Client.UI.MyContainer.registerClass( "My.Client.UI.MyContainer", Sys.UI.Control);52Sys.TypeDescriptor.addType("script", "MyContainer", My.Client.UI.MyContainer);53</script>54 <script type="text/xml-script">55 <page xmlns:script="http://schemas.microsoft.com/xml-script/2005">56 <references>57 <add src="Thumbnail.js" />58 </references>59 <components>60 <ThumbnailContainer id="ThumbnailContainer" />61 <button id="adjustDimensions">62<!-- What to do here ?? -->63<click>64 <invokeMethod />65 </click>66 </button>67 </components>68 </page>69 </script>70</body>71</html>

Thank youOk, I have figured out what I was missing from more disection of the ATLAS runtime and hunting around for more examples of invokeMethod. I had to add the method getDescriptor and then I was able to reference my method. Now the next phase to bind the parameters to the form fields.

Calling a WebService in another website on the same domain (Solved)

Hi all.

I'd been messing about with Atlas this week and after some banging of head against wall managed to get the basics working. I then found myself wanting to build a modular application consisting of multiple web services, but was getting no joy calling web servies in external solutions (projects) - I had the usual stuff reported in Fiddler suggesting I add [WebOperationAttribute(true, ResponseFormatMode.Json, true)] to my web method.

Not having done any webservice coding before this was all a bit bewildering but with some persistence I managed to get it all working.

If anyone else is having trouble here's what you do:

1) Make sure your remote web service is also an Atlas application.

2) In the Web.Config file of the remote webservice add the following under the <system.web> section:

3) In your WebService class file include a reference to the Microsoft.Web.Services namespace:

Imports Microsoft.Web.Services

4) On your WebMethod add the following WebOperationAttribute:

<WebOperationAttribute(True, ResponseFormatMode.Json, True)>

So, it should look like:

<WebMethod()> _
<WebOperationAttribute(True, ResponseFormatMode.Json, True)> _
Public Function HelloWorld(ByVal strValue As String) As String
Return strValue
End Function

(some examples I found (including that of Fiddler I think) had square brackets surrounding the WebOperationAttribute which confused the issue)

5) In your calling application, reference the remote service as follows:

<atlas:ScriptManager ID="ScriptManager1" runat="server">
<Services>
<atlas:ServiceReference Path="http://localhost/AtlasTest2/Test.asmx" />
</Services>
</atlas:ScriptManager>

...and that should work.

Hope this helps. Any comments/suggestions welcome.

Ben

Hi Ben,

In theory, you should not have to go through the iframehandler if your other web service is in the same domain. Try simply havingpath="/AtlasTest2/Test.asmx" without thehttp://localhost part.

The reason you saw square brackets in some samples is that it is the C# syntax for attributes, while you're using VB.

David

Calling a Web Service from within JavaScript source

I'm trying to make an internal Web Service call from within an ATLAS client control, but I can't figure out how to get the parameters passed into the call properly into the Invoke method for ServiceMethod.

The following manages to call the Web Service but the parameter is not respected.

var num =new Object();
num.Value = -1;
var serviceMethod =new Sys.Net.ServiceMethod(_serviceURL, _serviceMethod,null/*? _appUrl */);var _request = serviceMethod.invoke(num, _onMethodComplete, _onError,
_onError,_onError,
this,2000, Sys.Net.WebRequestPriority.Normal);

Actually I can see that the object needs to be formatted with the name of the parameter. While I can do this for testing - at runtime I have no idea what service the user is connecting to so I won't know the name of the parameter. Isn't there some more generic way to call the Web Service from code?

Also what is AppUrl in this context?

I suspect the answer is the higher level ServiceMethodRequest, but it takes a UserContext object that I have no idea how to create.

Any ideas appreciated.

+++ Rick --

The first parameter to invoke() is an object that wraps all the parameters of your server method. e.g if your server method takes an int named 'n' and a string named 's', you would have:

serviceMethod.invoke({i:5, s:"Hello"), ...)

David

Ok, that's not terribly useful <g>... All of the values passed are going to be variables. Unless I parse this myself I can't see how to call the service dynamically with this scheme.

There's gotta be a higher level mechanism for making a remote Web Service call? If not, then that's something that should maybe be there? Similar to what Callmethod used to do?

+++ Rick --

Not sure I'm following you. In the code above, you can replace 5 and "Hello" by arbitrary variables.

Note that there is indeed an alternative way of calling services by using the generated proxy. See thispage for an example.

Yeah of course I can call a Web Service that's PREDEFINED using the proxy class generated, but that doesn't help if you need to call the service when you don't know beforehand what the name is or what's exposed on it. If you want dynamic execution you won't know immediately at runtime what the parameters are or what the type.

So yeah, I can write a string value there but if I don't know that it's a string beforehand it gets to be a major hassle to write that call.

Consider this scenario: You build a custom client control and you have an option to call a service Url with arbitrary parameters that are set up in an array. Then you have to parse that call into this funky syntax.

There needs to be a way to dynamically call a service the same way that CallMethod used to work.

So yeah, I can write a string value there but if I don't know that it's a string beforehand it gets to be a major hassle to write that call.

There needs to be a way to dynamically call a service the same way CallMethod used to work. So you can specify an array of values, an endpoint Url and method name.

I do not think Macrh CTP directly provides the functionality you are looking for. But if you can exam how Sys.Data.DataSource class works. it may provide some hints if you decide to write you own class to accomplish your goal.

Actually, the syntax above is completely generic, and requires no hard coded knowledge of any aspect of the web service. All the parameters are passed as arbitrary name/value pairs on a standard Javascript object, which can be added dynamically.

David

David, I think your sample code is some kind of generic, but i don't see how it works if we don't know , at design time, what public web services out there user want to call.

Why do you think you need to have this information at design time? Every piece of the code (the URL, the method name, the parameter names and values) can be specified dynamically.

Of course, if you are referring to the proxy class, then yes, that is only usable for the case where you know at design time what service you want to call. But the original post was not about the proxy.

David

Hi David,

We seem to have some sort of disconnect here. Let me explain what I mean.

You said:

The first parameter to invoke() is an object that wraps all the parameters of your server method. e.g if your server method takes an int named 'n' and a string named 's', you would have:

serviceMethod.invoke({i:5, s:"Hello"), ...)

First is that type prefix required or not? I think I tried without it and it didn't seem to work. If it is required then the above is not generic because you'd have to parse the values into the above format and then eval it into a string somehow which is a mess.

You say the above with such certainty, but you have to remember we're working off this stuff blind. This stuff isn't documented. We DON'T KNOW what the parameter signature is, we have to guess...

So anything you can do to explain would be really helpful...

Thanks,

+++ Rick --

Hi Rick,

In Javascript writing { i:5, s:"hello" } creates an object that contains two fields with those name/value pairs. 'i' and 's' are not prefixes, they are field names, and in Atlas JSON services (as in SOAP) they are required since parameters are passed by name (and not by order).

Another way to create this same object is to write:

var o = {};
o.i = 5;
o.s = "hello";

And yet another way which I think will be the one you want is:

var o = {};
o["i"] = 5;
o["s"] = "hello";

Note that that there is no need to call eval(), which would indeed be ugly (and inefficient). Does that give you what you are lookin for?

And I certainly realize the doc is poor and samples are limited. But they'll get better! :)

David

Calling a Web Service from Javascript

Hello!

I'm developing a WebTv channel using Atlas. My problem is in the calling of the Webservice from Javascript, it only works when I put one button like in the Atlas example:http://atlas.asp.net/docs/atlas/samples/services/Simple.aspx

The error appears when I'm invoking the WebService on the 'onload' event of the page:

requestSimpleService = iDomus.RSS..RssParser('http://www.maisfutebol.iol.pt/rss.php',OnComplete, OnTimeout);

The error on the 'onload' event is: Microsoft JScript runtime error: 'iDomus' is undefined.

I suspect that the namespace is not recognized because the Atlas engine is rendered after my script.

Any help will very appreciated.

Best regards,

Paulo Alves.

not that i have any answer for this but...

do you have "Type.registerNamespace("iDomus")" any where in your javascript?
better yet... is it before the actualy class (or object) decleration:

The other problem is that you might not have the "Namespace" setup correctly... so if your object is actually "iDomus.RSS.RssParser" then I would register the "iDomus.RSS" Namespace

since I'm working blind with what the page setup looks like...
it could also be that your object decleration is further down in the code than in the "onload" event.

again... i'm not apart of any "team" so... take it for what it is worth:
declare all of your objects first and then utilize the "pageLoad" function that gets called from Atlas

-- page declare
-- html
-- head
-- -- script manager
-- body
-- -- html elements
-- end body
-- script [for atlas]
-- -- js objects
-- -- pageLoad(){}
-- end script
-- end html

this way if you have the a seperate JS file then the "Script Manager" should load the JS file before the "pageLoad" or before the lower script section gets parsed by the browser

hope that helps...

Hellomeisinger!

Thank you for your reply.

The namespace I think is registered by the ScriptManager. When I invoque the webservice: Rss.asmx/js the result is:

Type.registerNamespace('iDomus'); iDomus.RSS=new function() { this.path = "http://localhost:4360/WebTV/RSS.asmx"; this.appPath = "http://localhost:4360/WebTV/"; var cm=Sys.Net.ServiceMethod.createProxyMethod; cm(this,"RssParser","url"); }

My aspx has the follow code:

@.PageLanguage="C#"AutoEventWireup="true"CodeFile="SimpleRSS.aspx.cs"Inherits="aluno_Media_player" %>

<!DOCTYPEhtmlPUBLIC"-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<htmlxmlns="http://www.w3.org/1999/xhtml">

<headrunat="server">

<title>WebTV.ESTIG</title><linkrel="stylesheet"href="default.css"type="text/css"/>

head><atlas:ScriptManagerID="scriptManager"runat="server"EnableScriptComponents="true"><Services><atlas:ServiceReferencePath="RSS.asmx/js"/></Services></atlas:ScriptManager>

bodytopmargin="0"leftmargin="0"rightmargin="0"background="images/ban5.jpg"><formid="form1"runat="server"><divid="Publico"class="PainelWebTV"></div>

scripttype="text/javascript"language="JavaScript">//timer = window.setInterval('parser();',1000);

parser();

function parser()

{

//Call script proxy passing the input element data

requestSimpleService1 = iDomus.RSS.RssParser(

'http://www.publico.clix.pt/rss.asp?idCanal=10'

//params

OnCompletePublico,

//Complete event

OnTimeoutPublico

//Timeout event

);

window.clearInterval(timer);

timer = window.setInterval(

'parser();',10000);returnfalse;

}

function OnCompletePublico(result)

{

Publico.innerHTML = result;

}

function OnTimeoutPublico(result)

{

Publico.innerHTML =

"Offline.";

}

</script></form><scripttype="text/xml-script">

<page xmlns:script=

"http://schemas.microsoft.com/xml-script/2005">

</references>

</components>

</page>

</script>

body>

html>

------------------------------------------

And the WebService:

@.WebServiceLanguage="C#"Class="iDomus.RSS" %>

using

System;

using

System.Web;

using

System.Collections;

using

System.Web.Services;

using

System.Web.Services.Protocols;

using

System.Text;

using

System.Text.RegularExpressions;

using

System.Xml;

using

System.Net;

using

System.IO;

namespace

iDomus

{

[

WebService(Namespace ="http://idomus/")]

[

WebServiceBinding(ConformsTo =WsiProfiles.BasicProfile1_1)]publicclassRSS : System.Web.Services.WebService

{

[

WebMethod]publicstring RssParser(string url)

{

string title =null;string link =null;XmlTextReader reader =null;StringBuilder sb =newStringBuilder();

reader =

newXmlTextReader(url);

reader.MoveToContent();

if (!reader.EOF)

{

reader.MoveToContent();

int cont = 0;while (reader.Read() && cont < 4)//processa o ficheiro RSS

{

if (reader.Name =="item" && reader.NodeType ==XmlNodeType.Element)

{

sb.Append(

"<img src=\"images/bullet.gif\"> ");

}

if (reader.Name =="title")

{

title = reader.ReadString();

}

if (reader.Name =="link")

{

link = reader.ReadString();

}

if (reader.Name =="item" && reader.NodeType ==XmlNodeType.EndElement)

{

sb.Append(title);

sb.Append(

"<br />");

cont++;

}

sb.Append(

"<small>(act. " +DateTime.Now.Hour +":" +DateTime.Now.Minute +")");

}

return sb.ToString();

}

----------------------------------------

As you said, maybe the code is not in right place, but I don't know another option.

Sorry for the length of the post and thank you again for your help.

Regards,

Paulo Alves.

The Javascript error is:

Microsoft JScript runtime error: 'iDomus' is undefined

In Fiddler the error is:

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.

System.Web.HttpMethodNotAllowedHandler.ProcessRequest(HttpContext context) +103
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +317
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +65

I think the error is on the Atlas.js, but I can't figure it out.

Paulo Alves.

hello.

well, it looks like a permissions problem..are you running in medium trust?

Luis Abreu:
hello.
well, it looks like a permissions problem..are you running in medium trust?

I try even put in low trust, but the error is the same.

In my web.config I have the typical settings for Atlas:

sectionname="webServices"type="Microsoft.Web.Configuration.WebServicesSection"requirePermission="false"/>

sectionname="authenticationService"type="Microsoft.Web.Configuration.AuthenticationServiceSection"requirePermission="false"/>

sectionname="profileService"type="Microsoft.Web.Configuration.ProfileServiceSection"requirePermission="false"/>

httpHandlers>

removeverb="*"path="*.asmx"/>

addverb="*"path="*.asmx"type="Microsoft.Web.Services.ScriptHandlerFactory"validate="false"/>

locationpath="ScriptServices">

system.web>

authorization>

allowusers="*" />

authorization>

system.web>

location>

Thank you..

Paulo Alves.

Hello again!

I follow All the options addressed by Meisinger and Luis Abreu and with the change in the loaction of Javacript, I put it in the Head of the document, and using the Javascript Function:

timerRss1 = setTimeout("parser()", 1000);

Now it works without problems.

Thank you very mutch Meisinger and Luis Abreu for your tips.

Regards,

Paulo Alves.

hello again...

are you saying that putting the script block in the header solves the problem?

I thought the position of the script has influence, but I put it back in the body and still working. The change that solve me part of the problem was in the SCRIPTMANAGER:

<atlas:ServiceReferencePath="RSS.asmx"/>

When in the last version I put "Rss.asmx/js", like in examples of Atlas Team.

I make this change several times but did't work. I don't know why but now is working. A lot of people had experience some problems with atlas in some specific script blocks, maybe this has the same problem and by magic disappeared.

Regards,

Paulo Alves.

hello again.

ah, i've missed it...

well, you put the /js if you add the file by hand. for example, you could do this:

when you use the scriptmanager, you can't add the /js since it'll add it automatically...

Calling a WCF secure service

I know Atlas has some extensions to call WCF services but I am wondering is there any way to call a service using WS-Security instead of transport security (Https) ?.

Thanks

Pablo.

Hi Pablo,

Atlas is targeted on the "reach" end of the spectrum, which means it's pitched at technologies that are already widely deployed today. This necessarily means it can't take advantage of some of the richer protocol work like WS-Security because it's new and not everyone understands how to speak that stuff yet. I think of that as the "reach/rich tradeoff". The unfortunate reality is that you can't optimize for both at the same time.

However, history has shown that technologies that were once squarely in the 'rich' end of the spectrum have a tendency to become ubiquitous over time (a great example of this is DHTML, which has been around for years but has only recently become interesting).

Interesting times ahead :)
-steve
Thanks a lot Steve!!!. I just want to be sure about that.

Calling a simple Web Service from an ASPX page

I created a new Atlas web project, added a new web service and web page using the the code from the Simple.aspx and SimpleService.asmx.

Given I have identical code in the page and ws, I end up with 'Quickstart' is undefined error, on the following line of javascript:

requestSimpleService = Quickstart.Samples.SimpleService.EchoString(
document.getElementById('inputName').value, //params
OnComplete, //Complete event
OnTimeout //Timeout event
);

Any ideas?

It turns out in VS2005, when a new web service is created a code-behind is also created and placed into the App_Code directory. The problem I was getting was becuase the namespace reference was not the same as in the asmx.

Problem solved.

Great! Note that this behavior is optional, so if you prefer you can get the code inline in the asmx file (it's a checkbox on the add dialog).

David

Calling a simple JS Function in the "Atlas way"

How could I, from an server-side control (like a Button), call an JS Function?
In the "old way", I used theRegisterClientSideScriptBlock to do this, but it does not work in the Atlas.

Thanks in Advance for the attention,
Fract4L

RegisterClientSideScriptBlock isn't working anymore for you with Atlas? Could you post a code sample showing the problem and describe what error you're getting if any?

I haven't tested this with Atlas but I assume it should work. This might even be some deprecated method of calling a JS funcion from a .NET control but I would always add the following to the page_load.

Button1.Attributes.Add("OnClick", "HelloWorld();")

Not sure again if this will work in Atlas, but it does add the js event function to the button itself.

JoeWeb

hello.

use the overload that has a boolean as its last parameter. this method will generate the correct script block in all cases (i think that you're script string has <script type='javascriopt'> on it, right? if you fo this, it won't work in atlas because only the scripts that have the type attribute set to text/javascript will be correctly loaded by the platform).

regarding the bt click handling on the client side, you can also use the new onclientclick property intesad of using the attributes collection.

Hello all,

TheRegisterClientScriptBlock was deprecated in favor of the classClientScript, that has all the funcionallities of the old method and some new ones.

Either way, thanks in advance for your fast responses and I hope that this question could help others.

Fract4L

Here is the code:

1protected void btnAccess_Click(object sender, EventArgs e)2{3// this works fine ;-)4StringBuilder sb =new StringBuilder();5sb.Append("<script type=\"text/javascript\">");6sb.Append("alert('test');");7sb.Append("</" +"script>");8ClientScript.RegisterClientScriptBlock(this.GetType(),"test", sb.ToString());9}

hello.

i'd remove the lines <script> and </script> and add ,true to the registerclientscriptblock method.

Calling a server side method.

My experience lies with Ajax.net. I need to call a method passing parameters back on the server. What ATLAS methodology should I do?

Imagine the scenario where I have a ordered list and I have the option client side to change the order. After each order change (the client UI is modified), I need to just touch a method on the server. I don't need any response or updates back.

I would like to do something like this

function OnItemMoved( first, second )
{
AltasCall.MovingObject.MoveItems( first.ID, second.ID );
}

Hi,

a PageMethod seems appropriate for your scenario. Basically you have to add the [WebMethod] attribute on your server method (you have to declare this method in your Page class), make it public and then you will be able to call it on client side through the PageMethods namespace:

function OnItemMoved( first, second ) { PageMethods.MyMethod(first, second); }

I appreciate it greatly, works like a charm.

Do you know if it is possible to call another method outside the Page class's scope? This is library code, and I don't want to force the end user to declare this method on all their pages.

billrob458:

Do you know if it is possible to call another method outside the Page class's scope?

At the moment the methods must be put in the Page class. One solution to your problem would be to wrap the library method with a WebMethod and put it in a base class that inherits from Page. The other pages will then be derived from the base class.
Another solution would be to expose the reusable method as a web service - which can act as a wrapper for your library code. Then you can make the calls to the webservice from anywhere.

Monday, March 26, 2012

Callback Scope on the client

I've started to play around w/ some of the basic Atlas features, mainly calling a web service from the client. One thing I noticed is that scope is lost during the asynchronous call to the server. If my javascript caller & callback method are part of an class, I've no way of telling Atlas to invoke the callback method w/ a specific object's scope.

Is this possible to do?

Cheers,
BobbyYou have a userContext parameter which you can pass as part of yourasynchronous call, that is what you can use to get back to the contextof your call, i.e. you can pass the object who's scope you want back aspart of the call...

Hope that helps,
-Hao
As I understood it, the userContext serves as a holder for contextual data that can be used inside the handler as an object - scope is still lost. Consider the following js class example:

TestClass = function(prop1)
{
this.propertyOne = prop1;

this.test = function()
{
MyCallbackServiceClass.Test({onMethodComplete: this.testCallback, userContext: this});
}

this.testCallback = function(result, user)
{
alert(this.propertyOne);
}
};

var t = new TestClass("This should persist before and after callback");
t.test();

When propertyOne is alerted in the testCallback method, it will be undefined because the scope is not preserved. I don't want the object as a parameter - I want to be operating within that object.
Mike Harder from the ASP.NET team, being the top-notch guy he is, answered this question for me. The scope is maintained by using a delegate.

CSharper.Net.CallbackService.Test({ onMethodComplete: Function.createDelegate(this, this.testCallback), userContext: this });

Callback (ICallbackEventHandler) and Atlas. Can they work together ?

I am new in Atlas. It seems very simple to use (Update Panel). However, I have several composite controls that use theICallbackEventHandler. When I mix them with Atlas UpdatePanel they do not work.

Any suggestions.

Thanks

We are currently investigating such issues. Thanks for the report.

Are there any news conerning this issue?

I have a custom (image map like) control which reacts to clicks by a javascript. the javascript part sets postback values like x, y, and raises a postback by form.submit().

Now when I place this control on an UpdatePanel, the javascript:form.submit() raises a postback, but not a partial postback... Do I have to register the javascript somewhere else (expect RegisterClientScript or so)? Or is there a way to make a postback in order that the server updates the UpdatePanel with a new image? I tried the Callback (standard provided by ASP.NET 2.0), but this seems only to be for delivering a string value from server to client (at least I couldnt kick off any partial update of the page..)

Regards,

Ray

Hi,

Can you say if controls using IcallbackEventHandler will be supported when used in Atlas UpdatePanels?

thx

As far as I can see, I don't think this is possible at all, since the two postbacks are happening in two different contexts. It would probably require a change to the whole javascript callback library included in ASP.NET 2.0. What we need here is the ability to send two events back to the client, and returning them all in one context.

Having said that, I really really wish this was possible. Although the ASP.NET AJAX library has some really cool controls, there will always be cases where you would need to supplement with your own AJAX-style controls, and the events on these controls should trigger fx. the UpdatePanel.

Call Webservice method which takes two paramete

Hi Everyone:

I am new to Atlas World and this is my first post.I have two question

1. I create a simple webservice which has a GetMemberDetail method as below

[

WebMethod]publicstring[] GetMemberDetail(string searchCriteria)

{

try

{

string SQL ="select member_id,first_name,last_name from table where client_id = 1111 and upper(last_name) like 'XXX%'";

SQL = SQL.Replace(

"XXX", searchCriteria.ToUpper());OracleDataReader dr =OracleHelper.ExecuteReader(cn,CommandType.Text, SQL);List<string> suggestions =newList<string>();while (dr.Read())

{

suggestions.Add(dr[2].ToString());

}

return suggestions.ToArray();

}

catch (Exception ex)

{

string mess = ex.Message.ToString();throw;

}

and in aspx page i have

<asp:TextBoxID="myText"runat="server"></asp:TextBox><atlas:AutoCompleteExtenderID="abc"runat="server"><atlas:AutoCompletePropertiesEnabled="true"MinimumPrefixLength="3"ServicePath="AutoCompletion.asmx"ServiceMethod="GetMemberDetail"TargetControlID="myText"/></atlas:AutoCompleteExtender>

When i run the application, parameter[searchCriteria] being passed to webservice is become a null .

Can anyone please tell if i am missing something.

Question No: 2 If i want to call a method from WebService which takes two parametes like ClientID and searchCriteria.How Can i do it ?

Please help .

Thanks,

Pargat

Hi,

regarding the AutoCompleteExtender,
1) the serviceMethod must be a method that accepts two arguments; these arguments have to be exactly named:prefixTextandcount and they must be strings. The first argument contains the text typed in the TextBox while the second is the number of results to be returned.
2) it's not possible to pass other parameters to the AutoComplete method.

Thanks .Is there any way i can use this functionality.My requirement is to pass clientID and search string [last name] and return back array that match the search criteria.

Pargat

Hi,

you can't do it at the moment with the Atlas auto-complete stuff. If I remember correctly, someone posted a custom auto-complete class that handles multiple parameters, but I think it relies on a previous Atlas release (anyway at the moment I can't find that thread).

Call WebMethod declared on a DIFFERENT aspx page?

I'd like to expose a WebMethod on an ASPX page and then invoke it from my Atlas page:

<atlas:ScriptManagerrunat="server"ID="scriptManager">

<atlas:servicereferencepath="MyAspxBasedService.aspx"type="text/javascript"/>

</services>

</atlas:ScriptManager>

Then invoke it. The reason is that I want the full ASPX processing to happen. In short, I want to declaratively create controls on the ASPX page, then render partial pieces of them to be returned back to the Atlas client.

Any help?

Tad

Just as I sent, I noticed that you wanted to call a page method on adifferent page, so clearly PageMethods.YourMethodName() won't work.

Calling a method on a different page is not supported. I'm not convinced that this is desirable; when you call a method on the current page, the point is that the server page gets populated with all the data from the browser, and that your method can make use of it. But if it's a different page, it can only have its clean original state, which seems a lot less useful.

David

Hi Tad,

You don't need to use any servicereference to call a method that's on the page itself. Just mark the method with a [WebMethod] attribute, and call it using the name PageMethods.YourMethodName(...).

David

Thanks David.

I've got a flyout asp:Menu control on my site that is 3 levels deep, which bulks up the page size and is pig slow. I thought about seeing if I could get the same benefits of the control by making it populate on demand. So, my ASPX call will pass a parameter indicating which branch of my menu I need to render (from my database). I would use the menu control to programmatically build the branch and render the html which I'd return from my webservice call. (of course I'd cache it too).

The nice thing about the ASPX page is that I can declaratively define the menu properties and templates.

I suppose I could make an XmlHttpRequest directly to the ASPX and pass query string params, but that seems soooooo YESTERDAY!

I'm just foolin' around. Any ideas before I go off and just build my own lightweight flyout control?

Tad

Why not use a Web Service that provides your site navigation menu data that takes, as input, information indicating the current branch that the page is on? Atlas is definitely designed for dealing with that type of scenario, and the 'pig slow' effect can be mitigated by having bits of your menu populated dynamically asynchronously using the Web Service invocation.

Obviously if you're tied to only using an ASPx page, then thats that...but one of the first things I did with Atlas was whip out a dynamically-generated site navigator that was powered by a Web Service. I was really impressed with it.

I wouldn't attempt that myself. Plus, I don't think a flyout menu is the right control for on-demand population (which is exactly why we didn't include the feature in the first place). Imagine what will hapen if the user flies his mouse cursor over the menu (which he'll necessarily do unvoluntarily): tens of requests sent to the server at the same time. Ugly.

Developing a lighter menu with fewer features but with focus on CSS without inline styles is probably a much better option. I was thinking of doing that when I have some time (which probably means not in the next few weeks).

Sure, that's a good point, and even without using a web service and dynamic population, reducing the depth of the menu and starting at the current hierarchy level can help considerably.

A combination of a menu and a SiteMapPath can give a good navigation UI without going too fancy.

About what you describe, the thing is that the menu does not support populate on demand. A treeView would do the trick, but that may not be the UI you want (although the TreeView appearance can be brought close to that of a menu with the exception of the fly-outs).

Call web service in Javascript

I used to use Atlas for calling web service in Javascirpt and everything works fine. After I upgrade to Ajax beta1 it stopped working. The error message is the web service class is undefined. I have updated web.config file manually. I also tested this by creating a new ajax toolkit web site. The following is the code. It give me the same error? Anyone can help? I also get a error message for one page I had never met before with Atlas. The error message is error:Sys.ArgumentException: Value must not be null for controls and Behaviors. parameter name:element.

Thanks.

<?xml version="1.0"?>
<configuration>
<configSections>
<sectionGroup name="microsoft.web" type="Microsoft.Web.Configuration.MicrosoftWebSectionGroup, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
<sectionGroup name="scripting" type="Microsoft.Web.Configuration.ScriptingSectionGroup, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
<sectionGroup name="webServices" type="Microsoft.Web.Configuration.ScriptingWebServicesSectionGroup, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
<section name="jsonSerialization" type="Microsoft.Web.Configuration.ScriptingJsonSerializationSection, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false"/>
<section name="profileService" type="Microsoft.Web.Configuration.ScriptingProfileServiceSection, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false"/>
<section name="authenticationService" type="Microsoft.Web.Configuration.ScriptingAuthenticationServiceSection, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false"/>
</sectionGroup>
</sectionGroup>
</sectionGroup>
</configSections>
<system.web>
<pages>
<controls>
<add tagPrefix="asp" namespace="Microsoft.Web.UI" assembly="Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add tagPrefix="asp" namespace="Microsoft.Web.UI.Controls" assembly="Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add namespace="AjaxControlToolkit" assembly="AjaxControlToolkit" tagPrefix="ajaxToolkit"/>
</controls>
<tagMapping>
<add tagType="System.Web.UI.WebControls.CompareValidator" mappedTagType="Microsoft.Web.UI.Compatibility.CompareValidator, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add tagType="System.Web.UI.WebControls.CustomValidator" mappedTagType="Microsoft.Web.UI.Compatibility.CustomValidator, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add tagType="System.Web.UI.WebControls.RangeValidator" mappedTagType="Microsoft.Web.UI.Compatibility.RangeValidator, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add tagType="System.Web.UI.WebControls.RegularExpressionValidator" mappedTagType="Microsoft.Web.UI.Compatibility.RegularExpressionValidator, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add tagType="System.Web.UI.WebControls.RequiredFieldValidator" mappedTagType="Microsoft.Web.UI.Compatibility.RequiredFieldValidator, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add tagType="System.Web.UI.WebControls.ValidationSummary" mappedTagType="Microsoft.Web.UI.Compatibility.ValidationSummary, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
</tagMapping>
</pages>

<compilation debug="true">
<assemblies>
<add assembly="Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
</assemblies>
</compilation>
<httpHandlers>
<remove verb="*" path="*.asmx"/>
<add verb="*" path="*.asmx" validate="false" type="Microsoft.Web.Script.Services.ScriptHandlerFactory, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
</httpHandlers>
<httpModules>
<add name="WebResourceCompression" type="Microsoft.Web.Handlers.WebResourceCompressionModule, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add name="ScriptModule" type="Microsoft.Web.UI.ScriptModule, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
</httpModules>
</system.web>
<microsoft.web>
<scripting>
<webServices>






</webServices>
</scripting>
</microsoft.web>
<system.webServer>
<validation validateIntegratedModeConfiguration="false"/>
<modules>
<add name="ScriptModule" preCondition="integratedMode" type="Microsoft.Web.UI.ScriptModule, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
</modules>
<handlers>
<remove name="WebServiceHandlerFactory-ISAPI-2.0"/>
<add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="Microsoft.Web.Script.Services.ScriptHandlerFactory, Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
</handlers>
</system.webServer>
</configuration>
using System;
using System.Web;
using System.Collections;
using System.Web.Services;
using System.Web.Services.Protocols;

/// <summary>
/// Summary description for WebService
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class WebService : System.Web.Services.WebService {

public WebService () {

//Uncomment the following line if using designed components
//InitializeComponent();
}

[WebMethod]
public string HelloWorld() {
return "Hello World";
}

}

<%@dotnet.itags.org. Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" >
<Services >
<asp:ServiceReference Path="~/WebService.asmx" />
</Services>
</asp:ScriptManager>
<div>
<script type="text/javascript">
function GetString()
{
strResult = WebService.HelloWord(alert(),alert());
alert(strResult);
}
</script>
<input type="button" id="Button1" onclick="GetString();" value="Click" />
</div>
</form>
</body>
</html>

Hi there, I think you forgot to append [Microsoft.Web.Script.Services.ScriptService] attribute in your webservice class. For example of simple webservice call, see myblog post orajax.asp.net docs.

Got it. Thanks for your advice. It is not mentioned in the migration manual. I also find you can not use AJAX controls on hidden field, at least it is true for AutoComplete. This caused the problem I mentioned in the first post. Hope this will help someone.

Call server side function

Hi is there a way to call server side function using Atlas. I know we can access Code-Behind function usingPageMethods but i don't want to put all of my code in code-behind and neither do i want to inherit my class from System.Web.UI.Page class Instead i want to put it in separate class file. Is this possible without putting code in web service ?

TIA

hello.

well, you can use the network stack to get what you want. in these case, i'd suggest using web services because you can use the client generated proxies which simplifies the acess to those methods. you can, however, build your own handler and then invoke it from client side if none of the default available solutions are adequate to your scenario.

Saturday, March 24, 2012

Call a web service

Can somebody explain, is it possible to call a web service which NOT located in the same project as atlas without creating a "bridge"??

Only if that service uses the same virtual directory or *host* location.

So, if the host of the virtual directory or project is:

http://MyHost/..... (where MyHost is your virtual directory/host)

and when you access the service that "host" is not different in anyway, then yes you can. If the host is different or even if there is a port appended to it like:

http://MyHost:1234/... then you will need some sort of bridge.

Note that the example above may work on IE6, but will fail on IE7 and Firefox. This is a limitation of the XMLHttp request object that is the basis for the web service access mechanism.

You could have a different project that exists within a sub-directory of another project which would therefore have the same host name and so would work. But again, if you created a new virtual directory for this sub directory and give it a different host name, then no, it wont work without bridging or writing a custom service to do it for you.

Thx, it was very valuable information.

Wednesday, March 28, 2012

calling javascript in atlas

calling javascript function in atlas

Calling Custom Client Method with xml-script

Calling a WebService in another website on the same domain (Solved)

Calling a Web Service from within JavaScript source

Calling a Web Service from Javascript

Calling a WCF secure service

Calling a simple Web Service from an ASPX page

Calling a simple JS Function in the "Atlas way"

Calling a server side method.

Monday, March 26, 2012

Callback Scope on the client

Callback (ICallbackEventHandler) and Atlas. Can they work together ?

Call Webservice method which takes two paramete

Call WebMethod declared on a DIFFERENT aspx page?

Call web service in Javascript

Call server side function

Saturday, March 24, 2012

Call a web service

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