How do I know the load?

I have my web pages that are using web services via atlas technology. when page loads users can click on the links but get error because page has not been loaded yet. How do I know that page loaded on atlas? How do I know that procies are created? can someone provide me some working javascript or what ever is possible to detect it?

thanks and greately appreaciated

Hi,

just hook up the load event raised by the global Sys.Application instance. Here's the code to add to your page:

<script type="text/javascript">
<!--
function onLoad() {
// Put your Atlas stuff here.
}
//-->
</script>
<script type="text/xml-script">
<page>
<components>
<application load="onLoad" />
</components>
</page>
</script>

The above code will call the onLoad function (it's a javascript function that you have to define) when all the framework stuff is initialized.

How do I create static functions in JavaScript?

According to the docs online, the Error class has static functions

I can do the following
var err = Error.create(message, errorInfo);

without having to create a new object first. The documentation online does not explain how to create your own static functions using the MS approach.

Any ideas how I can create my own static functions?

Andre

try this:

var StaticClass =
{
//Static Variables
varInt : 0,
varString : '',
varArray : [],

StaticMethod1 : function()
{
//Accessing the Vars
StaticClass.varInt = 5;
},

StaticMethod2 : function()
{
//Calling another static method
StaticClass.StaticMethod1();
},
}

//Outside the Class:

StaticClass.StaticMethod1()

Hope this help.

When I use this approach, it seems that I can not register the class with ScriptManager anymore.
I have been digging around in MS Ajax code to see how MS creates static classes like the Error class.

Here is a snippet:

Error.__typeName = 'Error';
Error.__class = true;

Error.create = function Error$create(message, errorInfo) {

}

...

I tried to use this approach but it did not work.

Also I would be able to use a namespace instead of only a class name.

Yes you will be able to add it in ScriptManager, but won't be able to use registerClass. Unless you are not creating any component, behavior or control there is no need to use registerClass. To include namespace, add your name as you did for regular class and acess theclass with namespace.

How do I catch this error?

I have a simple client side webservice call that has a timeout and error handler defined:

TickUpdates.TickUpdate(tokenKey, SucceededCallback, FailedCallback, FailedCallback);

if I am not connected to the web, I get the following error. How can I capture this gracefully ?

[Exception... "Component returned failure code: 0x80040111 (NS_ERROR_NOT_AVAILABLE) [nsIXMLHttpRequest.status]" nsresult: "0x80040111 (NS_ERROR_NOT_AVAILABLE)" location: "JS frame ::http://localhost:45000/ScriptResource.axd?d=BSklnKRUU-3ZDmAWzNvjWRmHZJsJaTmhatiwatSzdV-n5b762_YnBv0exMpD6psRGreUx_ficbFeVQuAjTH012_sGHF6tKUojM03BRoiazs1&t=633084179322613693 :: Sys$Net$XMLHttpExecutor$get_statusCode :: line 4166" data: no]
http://localhost:45000/ScriptResource.axd?d=BSklnKRUU-3ZDmAWzNvjWRmHZJsJaTmhatiwatSzdV-n5b762_YnBv0exMpD6psRGreUx_ficbFeVQuAjTH012_sGHF6tKUojM03BRoiazs1&t=633084179322613693
Line 4166

In my case, it's happening because I'm trying to make a call to a PageMethod on a page that required authentication, but my authentication has timed out. In IE, I get an error with status 12030, but Netscape gives me the error above. This is a showstopper if I can't handle it gracefully via the FailedCallback handler.

Any ideas?

OK, so I figured out what's going on. In the Microsoft library, there's the following method:

function Sys$Net$XMLHttpExecutor$get_statusCode() {
/// <value type="Number"></value>
if (arguments.length !== 0) throw Error.parameterCount();
if (!this._responseAvailable) {
throw Error.invalidOperation(String.format(Sys.Res.cannotCallBeforeResponse, 'get_statusCode'));
}
if (!this._xmlHttpRequest) {
throw Error.invalidOperation(String.format(Sys.Res.cannotCallOutsideHandler, 'get_statusCode'));
}

return this._xmlHttpRequest.status;
}

The problem with this is that Firefox throws an exception if the status isn't available, which is the case if you're offline, or, in my case, trying to access a PageMethod on a page requiring authentication after your logon has timed out. Throwing an exception is the W3 standard, as shown athttp://www.w3.org/TR/XMLHttpRequest/. Here is the related text...

status of type unsigned short, readonly
If the status attribute is not available an INVALID_STATE_ERR exception must be raised. It must be available when the state is receiving or loaded. When available, it must represent the HTTP status code (typically 200 for a successful request).

Its initial value must be 0.

So, what does this mean to us? It will require that Microsoft trap the exception thrown when the status isn't available, and then called the FailedCallback method so that we can handle it.

Here's my workaround. You can read the comments to know what I'm doing. With this fix to the get_statuscode method, I can then handle the 999 error code in my FailedCallback function. I hope this helps!

<script language="javascript">
//MS Ajax isn't handling getstatus exception, so i have to insert my own try/catch
//I'm doing it by creating a new prototype method... instead of rewriting the whole
//function, i'm simply taking the text of the current function, changing the name
//via replace, and changing the line accessing status to have try/catch wrapped around
//it. If the status call errors out, i'm returning error 999. You can return whatever you
//want.
//PS. I'm no javascript guru, so forgive me if I didn't use the most efficient
//code for creating a replacement function with the fixes.
//get the current function text
var funcText = Sys$Net$XMLHttpExecutor$get_statusCode.toString();
//our new function will have 'Patched_' appended to the start of the existing function
funcText = funcText.replace('Sys$Net$XMLHttpExecutor$get_statusCode', 'Patched_Sys$Net$XMLHttpExecutor$get_statusCode');
//replace status access with same line, except with try/catch block wrapped around it
funcText = funcText.replace('return this._xmlHttpRequest.status;', 'try {return this._xmlHttpRequest.status;} catch(e) {return 999;};');
//create new function using eval... to use funct = new Function or func = function() {...},
//I'd have to take the funcText and strip the function line and bracket from the beginning and the
//end. I could have done it by removing the first and last lines, but I did it this way instead.
eval(funcText);
//have the prototype method point to the new function instead of the old one
Sys.Net.XMLHttpExecutor.prototype.get_statusCode = Patched_Sys$Net$XMLHttpExecutor$get_statusCode;
</script>

I'm getting this error too in Firefox 1.0.3, but I'm not using any authentication. The oddities are:

1.) The error does not occur during the first asynchronous postback. The first one succeeds, but any subsequent async postbacks give the same error (pointing to the same Sys$Net$XMLHttpExecutor$get_statusCode() function).

2.) The error does not occur when I am using VS2005 in debug mode with a breakpoint at the codebehind event hander that handles the postback. When the code stops at the breakpoint, and I let it continue, the async postback succeeds.

Why would it work in debug mode with a breakpoint, but not in debug mode without breakpoints? Why would it succeed on the first postback, but not any subsequent ones?

This is just a weak opinion, but it sounds like a timing issue. I don't know why, but the pause that's introduced because of the breakpoint may enable it to complete, whereas without the pause it fails for some reason.

The issue I've documented definitely happens for reasons other than authentication. I hope I didn't give the impression that it's the only, or even primary, reason :).

John

FYI, MS has confirmed it's an issue, and is going to try to fix it in the Orcas release. In the meanwhile, they said the workaround I posted seems to be OK (although I'm sure they didn't have time to test it thoroughly - use at your own risk :)).

John

I thought of that, but inserting a System.Threading.Thread.Sleep(2000) call in the codebehind handler doesn't fix it.

I jumped the gun with this post anyway. As indicated athttp://ajax.asp.net/docs/BrowserCompatibilityForASPNETAJAX.aspx, UpdatePanels aren't officially supported for Firefox 1.0.x. Still, shouldn't Microsoft render in such a way that this browser uses synchronous postbacks instead of attempting asynchronous ones?

Then again, I'll have to chalk this one up to my system configuration. I just tried the same code using FF 1.0.3 on a different machine, and everything works as expected. Will have to try it in a production environment to see if the problem isn't coming from VS2005 and its embedded web server.

So it really is a confirmed issue? FYI I tried your fix. Whereas it did stop the error from popping up in the FF javascript console, it did not cause the second async postback to proceed. This is leading me more into thinking the problem was with my system configuration.

How can to get a Dataset from client in Atlas?

When I return a dataset in server and get result in client, there's always a error like this

"System.InvalidOperationException - a circular reference was detected while serializing an object of type 'System.Globalization.CultureInfo'".

Does Atlas not support get a dataset ?

Add the Preview verison to work with dataset, datatables etc.

Amit
Are you referring to the May Futures and the Microsoft.Web.Preview.dll?
If so, where is the support in the May Futures for Client access to datasets/datatables?
I looked at the documentation for the Futures and didn't see it.
Thanks for your help...
Glenn Michael

No I was talking about the Ajax January CTPhttp://www.microsoft.com/downloads/details.aspx?FamilyID=ca9d90fa-e8c9-42e3-aa19-08e2c027f5d6&displaylang=en you download it from this link.

How can I tell Scriptmanager to look for a specific form id value?

I'm getting a javascript error. I think it's because the Scriptmanager is looking for 'form1' which isn't the value of the form id on the page. The form id value is 'form1_1458'

I did a view source on the browser and I see this line:

Sys.WebForms.PageRequestManager._initialize('ScriptManager1', document.getElementById('form1'));

I need the ScriptManager to look for 'form1_1458' How can I force the scriptmanager to do to this?

It queries the ClientID on Page's Form property internally. What does Form.ClientID on your page return, if you try to output that?

i should have mentioned that this .aspx page is hosted within a portal environment (BEA aqualogic). The portal seems to append the _1458 to form1 which in the end makes it form1_1458.

let me see what Form.ClientID outputs.

How can I send xml data to server

I′m trying to send some xml data to a server and I always get Internal Server Error. I really don′t know why, because if I do the same thing, but instead of xml data I send some string, it′s working fine.

Here′s is sample code of what I′m trying to do:

createXMLHttpRequest();
var xml = createXMLData();

var url = "MyPage.aspx";
xmlHttp.open("POST", url, true);
xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");

xmlHttp.onreadystatechange = processStateChange;
xmlHttp.send(xml);

If I change thexmlHttp.send(xml); to for examplexmlHttp.send("something"); it′s working.

the xml data looks like: <AccountData><Email>something</Email><Login>something</Login></AccountData>

Can anyone help me with this please?

what is the createXMLData returning. An xml dom object or a string of xml. If it is a dom object you will first need to convert it to a string and then send it