Javascript Dopostback Error In Asp Net
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__dopostback Is Not Defined Javascript
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Javascript Runtime Error '__dopostback' Is Undefined In Ie 11
4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up IE10 SCRIPT5009: '__doPostBack' is undefined up vote 31 down vote favorite 16 I am facing a problem on IE10 with ASP.NET controls that requires JavaScript post back[like, link button]. It is properly working on the IE9 __dopostback' is undefined ie 10 version as well as on IE10 Compatibility mode. But on the IE10 standard mode, it is giving below error. SCRIPT5009: '__doPostBack' is undefined [I have created a demo project with a simple asp:link button that redirects to another page.] Tried the solution, but didn't work for me Can anyone suggest fix for this? asp.net postback internet-explorer-10 share|improve this question asked Mar 7 '13 at 14:22 CHANDRAHAS 3803817 These subjects also deserve a read, especially for the ".browser" server-side file fix ! stackoverflow.com/questions/18485339/… and stackoverflow.com/questions/19915720/… –AFract Mar 17 '15 at 10:56 add a comment| 4 Answers 4 active oldest votes up vote 50 down vote accepted There is apparently a bug in the browser definition files that shipped with .NET 2.0 and .NET 4. The definition files do not cater for IE10 as a browser version and hence defaults to a default definition which doesn't support JavaScript. Scott Hanselman has a very detailed writeup about this issue here: http://www.hanselman.com/blog/BugAndFixASPNETFailsToDetectIE10CausingDoPostBackIsUndefinedJavaScriptErrorOrMaintainFF5ScrollbarPosi
ASP.NET Community Standup Forums Help Home/ASP.NET Forums/General ASP.NET/Web Forms/__doPostBack is not defined __doPostBack is not defined [Answered]RSS 15 replies Last post Jan 24, 2013 __dopostback is not defined chrome 08:46 PM by khuyagaa ‹ Previous Thread|Next Thread › Print Share Twitter 0x800a1391 - javascript runtime error: '__dopostback' is undefined Facebook Email Shortcuts Active Threads Unanswered Threads Unresolved Threads Support Options Advanced Search Related Links GuidanceSamplesVideos Reply liamsmith __dopostback is not defined jquery Member 42 Points 29 Posts __doPostBack is not defined Oct 09, 2007 12:26 PM|liamsmith|LINK I have a GridView control with paging on my page, amoung a number of other http://stackoverflow.com/questions/15273618/ie10-script5009-dopostback-is-undefined things. On some computers (same operating system, same browser), I get the following error when clicking on the paging links: Error: __doPostBack is not defined Source File: javascript:__doPostBack('ctl00$CareersContent$JobListByDate$gvJobList','Page$2') Line: 1 Anyone know what might be causing this? I'm afraid the page is far too large to post any useful source code here. Reply gt1329a Star 10226 Points 2494 Posts ASPInsidersMVP http://forums.asp.net/t/1168074.aspx?__doPostBack+is+not+defined Re: __doPostBack is not defined Oct 09, 2007 07:59 PM|gt1329a|LINK What browser/OS? Encosia - ASP.NET, jQuery, AJAX, and more. A guide to combining jQuery and ASP.NET: jQuery for the ASP.NET developer Reply timallard Member 260 Points 156 Posts Re: __doPostBack is not defined Oct 09, 2007 10:18 PM|timallard|LINK So, seems the browser has javascript enabled but a function is missing. Get a view source and search for it, if __doPostBack is missing you may need to enable viewstate for the page, or, that function is getting called before it was available if a lot of other things are loading ... hth, tom mallard analyst/architect, SDE Reply liamsmith Member 42 Points 29 Posts Re: __doPostBack is not defined Oct 10, 2007 11:12 AM|liamsmith|LINK The error was happening under both Windows XP and Windows Server 2003, with IE 7. I checked the source of the page and the entire ViewState and __doPostBack function area was missing. I've temporarily solved the problem by adding a blank LinkButton into the page. This seems to force ASP.NET to create the
Register local search terms in SitecoreDMS → JavaScript ReferenceError: Can't find variable:__doPostBack Posted on October 30, 2013 by briancaos This error can occur https://briancaos.wordpress.com/2013/10/30/javascript-referenceerror-cant-find-variable-__dopostback/ in asp.net pages. In certain situations .net will fail to create the __doPostBack JavaScript function and the hidden __EVENTVALIDATION input field. The situations that can cause this are: When using asp:ImageButton or asp:LinkButton controls AND: When viewing the webpage using IE11 When viewing the webpage using an iPhone or an iPad that was updated to the latest is undefined iOS 7. The problem revolves around the BrowserDefinitions in .NET. .NET uses these Browser Definitions to identify the capabilities of the current browser. As per default, if a browser is not known (i.e. not defined in the BrowserDefinitions), .net assumes that the browser have no JavaScript capabilities, and therefore the __doPostBack function is not needed. Assuming that a browser __dopostback' is undefined is not JavaScript compatible by default in the year 2013 is probably pretty stupid. However, this is the reality and we need to cope with it. The browserdefintions are defined in the belly of .net (for example here: c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Config\Browsers). The later a .net version you have, the newer the .net version, the more likely it is that the browser is known. .NET 4.5 should know about IE11 and the latest iPhone and iPad browsers. POSSIBLE SOLUTION: SETTING THE CLIENTTARGET=UPLEVEL ON THE .ASPX PAGE There is a way to override the automatic detection of browser capabilities. Add the following to the <% Page %> directive on all of your .aspx pages: <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="somecodebehind" ClientTarget="uplevel" Inherits="somecode" %> Setting ClientTarget="uplevel" forces the page to generate JavaScript as it assumes that the browser has at least the capabilities of IE6. MORE TO READ: Bug and Fix: ASP.NET fails to detect IE10 causing _doPostBack is undefined JavaScript error or maintain FF5 scrollbar position by Scott Hanselmann Some StackOverflow Q/A articles: http://stackoverflow.com/questions/14025964/force-asp-net-to-generate-javascript-for-all-user-agents http://stackoverflow.com/questions/13