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Webform_InitCallBack Issue

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Viswanathan asked on 16 Dec 2013, 03:00 PM

Hi,

getting the famous webform_initcallback error that I cannot possibly solve with your advise in this form or internet..

asp page

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="WebForm1.aspx.vb" Inherits="WebApplication2.WebForm1" %>

<%@ Register assembly="Telerik.Web.UI" namespace="Telerik.Web.UI" tagprefix="telerik" %>

<!DOCTYPE html>

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

<head runat="server">

<title></title>

</head>

<body>

<form id="form1" runat="server">

<div>

<telerik:RadScriptManager ID="RadScriptManager1" Runat="server">

</telerik:RadScriptManager>

<br />

<telerik:RadComboBox ID="RadComboBox1" Runat="server">

</telerik:RadComboBox>

<br />

</div>

</form>

</body>

</html>

No back end code...

error message

<!DOCTYPE html>

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

<head><title>

</title><link href=

"/WebResource.axd?d=b8adWYak0tImLef4A3fc9Z8_PHe8zKE0KBeii0SRRMrZL_rQKR3OpEAm8hUy-uv03lBksH755XDi7vSiZ89vE2Xm8yPpbVN8tgDpIGivYDQnNkR_vImJ98FznLpy2TKAt0SsnUx2PpsgZlfIGCOmNw2&t=635173547820000000"

type="text/css" rel="stylesheet" class="Telerik_stylesheet" /><link href=

"/WebResource.axd?d=h0MkSn0fIoCPzk73lQFHIcHNbbdB7miPzq0lW5BCUc2QtaYhGg6oJBoMFR0wbWaB8UaxdZe3R9EyFVRK4ngG7EepI4EmV4tkPwQv3vgtmRmHTl8AEeJK5E0WCrCPbHzqJpTJv08DA_1P6x83siCLNOY_Sw2_VhZ4J8dyPVXyt-Q1&t=635173547820000000"

type="text/css" rel="stylesheet" class="Telerik_stylesheet" /></head>

<body>

<form method="post" action="WebForm1.aspx" id="form1">

<div class="aspNetHidden">

<input type="hidden" name="RadScriptManager1_TSM" id="RadScriptManager1_TSM" value="" />

<input type="hidden" name="__EVENTTARGET" id="__EVENTTARGET" value="" />

<input type="hidden" name="__EVENTARGUMENT" id="__EVENTARGUMENT" value="" />

<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value=

"Tm5N149yuKmzXB/3B/Ftu2dBnyIRBLBAcvYw8KDmwRC/RfHfYVBiQgUN8ptL4eCcbTI1nKphaomYMnQpljB21sjXL0iRXqYJPSGxSyBRh83N5SX1V1/8v4/Ugrgz+N+zM/fOXegnUBVzVX2plp21ebPiA6udRabI2DvItsRdt2D/e2fNxfyi+dG9WdhoYu6zFnPqYpQOPi2ORTaMmuFz8BrZ4aDKbsHFslH9pwzhY5/5aPQcngfhwpBPqfartm35mbi5Oha7KTAL54PlE+5wd1yb9lKS0hWiuGM+fzehrownLdaZQCgCtgcnyh0t7s2el2150Y2QZzSbyUwPMncnpg=="

/>

</div>

<script type="text/javascript">

//<![CDATA[

var theForm = document.forms['form1'];

if (!theForm) {

theForm = document.form1;

}

function __doPostBack(eventTarget, eventArgument) {

if (!theForm.onsubmit || (theForm.onsubmit() != false)) {

theForm.__EVENTTARGET.value = eventTarget;

theForm.__EVENTARGUMENT.value = eventArgument;

theForm.submit();

}

//]]>

</script>

<script src=

"/WebResource.axd?d=pynGkmcFUV13He1Qd6_TZET-9_WfhWfl_XSuxoR-zJfEfiMeDl8e9dCAvy19aYDj4W7rFHhZMkA7EuwSPbjGhw2&t=635053916887951880"

type="text/javascript"></script>

<script src=

"/Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=RadScriptManager1_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3abd2cc352-ff4f-463d-bb67-37f24bb2febd%3aea597d4b%3ab25378d2%3bTelerik.Web.UI%2c+Version%3d2013.3.1015.45%2c+Culture%3dneutral%2c+PublicKeyToken%3d121fae78165ba3d4%3aen-US%3a7a1d9c2d-6cf2-464f-9ad3-e479c730ac61%3a16e4e7cd%3af7645509%3a2003d0b8%3a24ee1bba%3af46195d3%3a1e771326%3a88144a7a%3aaa288e2d"

type="text/javascript"></script>

<script type="text/javascript">

//<![CDATA[

if (typeof(Sys) === 'undefined') throw new Error('ASP.NET Ajax client-side framework failed to load.');

//]]>

</script>

<div>

<script type="text/javascript">

//<![CDATA[

Sys.WebForms.PageRequestManager._initialize('RadScriptManager1', 'form1', [], [], [], 90, '');

//]]>

</script>

<br />

<div id="RadComboBox1" class="RadComboBox RadComboBox_Default" style="width:160px;">

<table summary="combobox" style="border-width:0;border-collapse:collapse;width:100%">

<tr class="rcbReadOnly">

<td class="rcbInputCell rcbInputCellLeft" style="width:100%;"><input name="RadComboBox1" type="text" class="rcbInput radPreventDecorate" id="RadComboBox1_Input" value="" readonly="readonly" /></td><td class="rcbArrowCell rcbArrowCellRight"><a id="RadComboBox1_Arrow" style="overflow: hidden;display: block;position: relative;outline: none;">select</a></td>

</tr>

</table><div class="rcbSlide" style="z-index:6000;"><div id="RadComboBox1_DropDown" class="RadComboBoxDropDown RadComboBoxDropDown_Default " style="display:none;"><div class="rcbScroll rcbWidth" style="width:100%;"></div></div></div><input id="RadComboBox1_ClientState" name="RadComboBox1_ClientState" type="hidden" />

</div>

<br />

</div>

<script type="text/javascript">

//<![CDATA[

WebForm_InitCallback();Sys.Application.add_init(function() {

$create(Telerik.Web.UI.RadComboBox, {"_dropDownWidth":0,"_height":0,"_skin":"Default","_uniqueId":"RadComboBox1","clientStateFieldID":"RadComboBox1_ClientState","collapseAnimation":"{\"duration\":450}","expandAnimation":"{\"duration\":450}","itemData":[],"localization":"{\"AllItemsCheckedString\":\"All items checked\",\"ItemsCheckedString\":\"items checked\",\"CheckAllString\":\"Check All\"}"}, null, null, $get("RadComboBox1"));

});

//]]>

</script>

</form>

</body>

<script type="text/javascript">window.__vwd_mapping_data={"map":[{"sourceFile":"~/WebForm1.aspx"}]};</script>

<script type="text/javascript" src="/__vwd/js/artery"></script>

</html>

What am I missing?

5 Answers, 1 is accepted

answered on 28 May 2014, 02:23 PM

I am having the same problem. I get this error:

SCRIPT5009: 'WebForm_InitCallback' is undefined
default.aspx, line 243 character 1

and this is the line of code causing the error

WebForm_InitCallback();Sys.Application.add_init(function() {
$create(Telerik.Web.UI.RadComboBox, {"_dropDownWidth":0,"_height":0,"_postBackReference":"__doPostBack(\u0027ctl00$ContentPlaceHolderHeader$SkinChooser\u0027,\u0027arguments\u0027)","_skin":"Outlook","_text":"Outlook","_uniqueId":"ctl00$ContentPlaceHolderHeader$SkinChooser","_value":"Outlook","clientStateFieldID":"ctl00_ContentPlaceHolderHeader_SkinChooser_ClientState","collapseAnimation":"{\"duration\":450}","expandAnimation":"{\"duration\":450}","itemData":[{"value":"Black"},{"value":"BlackMetroTouch"},{"value":"Default"},{"value":"Glow"},{"value":"Metro"},{"value":"MetroTouch"},{"value":"Office2007"},{"value":"Office2010Black"},{"value":"Office2010Blue"},{"value":"Office2010Silver"},{"value":"Outlook","selected":true},{"value":"Silk"},{"value":"Simple"},{"value":"Sitefinity"},{"value":"Sunset"},{"value":"Telerik"},{"value":"Vista"},{"value":"Web20"},{"value":"WebBlue"},{"value":"Windows7"}],"localization":"{\"AllItemsCheckedString\":\"All items checked\",\"ItemsCheckedString\":\"items checked\",\"CheckAllString\":\"Check All\"}","selectedIndex":10}, null, null, $get("ctl00_ContentPlaceHolderHeader_SkinChooser"));
});

answered on 02 Jun 2014, 11:42 AM

Hi Jerry,

It is possible that the encountered problem is caused by incorrectly loaded ASP.NET AJAX framework. The fact that WebForm_InitCallback is not initialized means that the execution of the script was terminated before this function is declared. Nevertheless, I cannot determine the exact cause of the issue from the provided information.

If you are still having difficulties, please open a support ticket and send a simple, fully runnable project that isolates the problem so that I can inspect it locally and provide a more to the point answer. An additional information that could be useful is the current version of UI for ASP.NET AJAX you are using, the browsers in which this occurs and whether the problem happens if you replace the RadComboBox with another AJAX control.

Regards,
Slav
Telerik

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