calling javascript function after asychronous call back event

I have a grid showing a list of records and a 'AddNew' Button on page. When user clicks on 'AddNew' a 'Table' which is not visible by default becomes visible using javascript and setting 'style.visible='visible'' and 'style.display='block'' properties. Now when user enters the data for new listing and click on 'Save Data' button i am sending an aschrounous call back using AJAX tool kit and UpdatePanel. Everything workes fine and record is entered withour complete Page Postback. But after the record is inserted and Grid is refreshed with asychronous postback what i want is to Hide that 'Add New' table and just wanted to show Grid on page. And the problem is i am not able to call the javascript function after asychronous call back which hides the Table.

Any suggestions?

Look into the Sys.WebForms.PageLoadedEventArgs class.

http://ajax.asp.net/docs/ClientReference/Sys.WebForms/PageLoadedEventArgsClass/default.aspx

(its a lot easier than the docs make it look)

<script type="text/javascript">var postbackElement;Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(beginRequest);Sys.WebForms.PageRequestManager.getInstance().add_pageLoaded(pageLoaded); function beginRequest(sender, args) { postbackElement = args.get_postBackElement(); } function pageLoaded(sender, args) { var updatedPanels = args.get_panelsUpdated(); if (typeof(postbackElement) === "undefined") { return; } else if (postbackElement.id.toLowerCase().indexOf(YOURPOSTBACKELEMENT) > -1) { //WHATEVER SCRIPT YOU NEED TO RUN } }</script>

Thankslilconnorpeterson ! your solution worked fine but fortunately i came to know that the problembecomes really simple and there is no need for calling javascript and making a Table Visible/Invisible if i replace the HTML table with server side Panel. Now i can simple make it Visible/Invisible by setting its Visible/Invsible property to true/false in codebehind.

Regards,

Zeeshan Malik

Calling a Web service method that returns an XmlDocument object

I'm calling a webservice method that returns an XmlDocument object. I'm getting the result back object back, but in my SuccededCallback function I'm having trouble navigating through the object with JavaScript. I'm trying to use methods on the object like .selectsinglenode and .selectnodes etc, but I keep getting a script error; "Object doesn't support this property or method. Any ideas? I'll post some of the code i'm trying to work with below.

Here is how i call the method from the client ...

Navegate.Services.GeneralTasks.GetSelectedPartyNumber(guid, id, SucceededCallback, FailedCallback);

Here is the web method ...

<WebMethod()> _

<ScriptMethod(ResponseFormat:=ResponseFormat.Xml)> _

PublicFunction GetSelectedPartyNumber(ByVal sessionguidAsString,ByVal idAsInteger)As XmlDocumentDim oXmlDocumentAs XmlDocument

oXmlDocument =

New XmlDocumentWith oXmlDocument

.LoadXml(

"<DocumentPacket><Company><Number>12345</Number></Company></DocumentPacket>")EndWithReturn oXmlDocument

EndFunction

And here is how i handle the response from the webservice method but get an error on .selectsinglenode ...

function

SucceededCallback(result)

{

alert(result.selectsinglenode(

"DocumentPacket/Company/Number").text);

}

Umm... Since it took five hours for this to post i was able to find the solution elsewhere.

I worked after I user .selectSingleNode instead of .selectsinglenode.

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.

CAllback Http handler http module

Hi all,

Can anybody tell me how to generate callback.This call back should NOT be in on aspx page .

I this its solution is Http module or Http handler but i dont have idea to implement .Give me some reference and sample code or examples for implementing call back using http handlers or httpmodule

thanks

Could you please describe in more detail what you want? A callback (as in ICallbackEventHandler) that is not on a page does not make sense.

I HAVE A WEB CONTROL CLASS LIBRARY IN WHICH I HAVE A .js FILE ADDED AS RESOURCE FILE . FROM THIS FILE I WANT TO SEND A CALL BACK AS I WANT TO USE "AJAX". BUT AS FAR I KNOW I REQUIRES A .aspx.cs PAGE WHICH I CAN'T ADD IN THE CLASS LIBRARY. HOW WILL I DO THIS TASK.

ANY KIND OF HELP IS APPRECIATED

ICallbackEventtHandler can be implmented in a Controt, it not true that it can be only implmented in a page. For more details of creating controls with ICallbackeventHandler checkout this articlehttp://msdn.microsoft.com/msdnmag/issues/05/01/CuttingEdge/default.aspx

CalendarExtender: Anyway to AutoPostBack?

I'd like to cause a post back when a user selects a date using the CalendarExtender. Anyway to do this?

You could try this...

1) Add the following code to your page's OnLoad event - this basically registers a function to handle the calendar date selection change on the client and force a postback (sorry if you're a C# person)

Protected Sub Page_Load(ByVal senderAs Object,ByVal eAs System.EventArgs)Handles Me.LoadConst strKeyAs String ="calendarExtenderPostback"If Not Me.ClientScript.IsClientScriptBlockRegistered(Me.GetType(), strKey)Then Dim pboAs PostBackOptions =New PostBackOptions(Me) pbo.AutoPostBack =True pbo.RequiresJavaScriptProtocol =False pbo.PerformValidation =True Dim strScriptAs String =String.Format("function calendarExtenderPostback(e) {{ {0} }}",Me.ClientScript.GetPostBackEventReference(pbo).ToString)Me.ClientScript.RegisterClientScriptBlock(Me.GetType(), strKey, strScript,True)End If End Sub

2) Add the following markup to your page to create the script manager, textbox and calendar extender... NB the use of OnClientDateSelectionChanged

<asp:ScriptManagerID="ScriptManager1"runat="server"></asp:ScriptManager>
<asp:TextBoxID="DateTextBox"runat="server"/>
<ajaxToolkit:CalendarExtenderID="CalendarExtender1"runat="server"TargetControlID="DateTextBox"Format="dd MMM yyyy"OnClientDateSelectionChanged="calendarExtenderPostback"/>

This works...to a point. It causes a postback, but not one that UpdatePanels seem to recognize. When I cause a postback using a button the content on my page in updatepanel's correctly updates. When I use the CalendarExtender autopostback method you described, the whole page refreshes. Any ideas?

There are quite a few posts on these forums for forcing an UpdatePanel to postback... it doesn't look like there currently a "correct" method of doing this (e.g. UpdatePanel.Update()) - though I might be wrong...

Suggestions include having a hidden button (using style="display: none") in your UpdatePanel which triggers the update.

You can then force the Click event for this in the code I described above (instead of the postback code)... which will in turn force the UpdatePanel to update!

This post may help...http://forums.asp.net/thread/1426873.aspx

Hope this makes sense!