Warn User When navigates away from page without changes RSS

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  Anand Reddy

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  Warn User When navigates away from page without changes

  Nov 05, 2012 02:07 PM|LINK

  Hi,

  I have a content page which contains multiple dropdowns, and textboxes. All those fills in Page_load event.

  I want to warn user if the user make any changes and navigates away (not when existing dropdown list's selected Item changes).

  Thanks & regards,

  Anand

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  Nasser Malik

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  Re: Warn User When navigates away from page without changes

  Nov 05, 2012 02:17 PM|LINK

  Try the

  onbeforeunload

  event: It is fired just before the page is unloaded

  It also allows you to ask back if the user really wants to leave.

  see this demo

  alternatively, you can send out an ajax request when he leaves.

  Same question discussed here

  Please Mark as Answer if find helpful -- Nasser --
  Skype: maleknasser1
  • Edited by Nasser Malik on Nov 05, 2012 02:20 PM
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  Anand Reddy

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  Re: Warn User When navigates away from page without changes

  Nov 05, 2012 02:38 PM|LINK

  It even  warns when I change any dropdown list selected item in page (as it postbacks).
  
  I also have a textbox in the page which fills in page_load() event, alteast can i check whether the value of that textbox has changed?

  • Edited by Anand Reddy on Nov 05, 2012 02:42 PM
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  ramiramilu

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  Re: Warn User When navigates away from page without changes

  Nov 05, 2012 04:13 PM|LINK

  Search for JQuery Dirty Forms plugins - http://mal.co.nz/code/jquery-dirty-forms/ 

  Thanks,

  Website
  JumpStart
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  Anand Reddy

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  Re: Warn User When navigates away from page without changes

  Nov 07, 2012 01:13 PM|LINK

  Hi,

  Never mind I kept all my controls in UdatePanel. It works now.

  But it throws "Unspecified error"  when I click Cancel button.

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  Chen Yu - MS...

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  Re: Warn User When navigates away from page without changes

  Nov 12, 2012 07:12 AM|LINK

  Anand Reddy

  But it throws "Unspecified error"  when I click Cancel button.

  Hi,

  Do you have any code to handle cancel_click? If yes, would you please show us some code ? Thanks a lot.

  Thanks.

  Please mark the replies as answers if they help or unmark if not.
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  Anand Reddy

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  Re: Warn User When navigates away from page without changes

  Nov 15, 2012 11:29 AM|LINK

  Hi,

  I don't have code to handle Cancle event. If provided any links or sample code to handle Cancle event in javascript will be helpful.

  Thanks & Regards,

  Anand

  • Edited by Anand Reddy on Nov 15, 2012 11:29 AM
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  geniusvishal

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  Re: Warn User When navigates away from page without changes

  Nov 15, 2012 11:39 AM|LINK

  Refer this link:

  http://www.dotnetvishal.com/2012/11/calling-javascript-using-server-side.html

  Vishal Ranjan
  
  My Website
  www.dotnetvishal.com
  
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  Chen Yu - MS...

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  Re: Warn User When navigates away from page without changes

  Nov 16, 2012 07:36 AM|LINK

  Anand Reddy

  If provided any links or sample code to handle Cancle event in javascript will be helpful.

  Hi,

  You could use $("#YourButtonID").click(function() {.... } in javascript to handle Cancle event.

  Please see: http://www.learningjquery.com/2008/03/working-with-events-part-1 

  http://api.jquery.com/click/ 

  Thanks.

  Please mark the replies as answers if they help or unmark if not.
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  • Edited by Chen Yu - MSFT on Nov 19, 2012 02:28 AM
  • Edited by Anand Reddy on Nov 21, 2012 07:46 PM
  • Edited by Anand Reddy on Nov 21, 2012 07:52 PM
  • Edited by Anand Reddy on Nov 21, 2012 08:13 PM
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  Anand Reddy

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  Re: Warn User When navigates away from page without changes

  Nov 21, 2012 08:32 PM|LINK

  Hi,

  when I use the javascript function:

  window.onbeforeunload = confirmExit;

  it fires the confirmExit() function which is in my source file (.aspx)

  Here, can I check a textbox value whether it has changed?

   

  Thanks & Regards,

  Anand

  • Edited by Anand Reddy on Nov 21, 2012 08:34 PM