how to disable backspace key?

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Hey programmers,

Please share what u know about the following issue on C#.

I have a master page in which there are many controls including Home and Logout button. When I Press Backspace Key the page redirects to the Login page.
Please forward your answers, thank you

Posted 19-May-13 21:29pm

Member 9625235

Updated 19-May-13 21:30pm

v2

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Solution 3

thank you very much for ur support

Posted 19-May-13 22:28pm

Member 9625235

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 22-May-13 9:47am

Most welcome... I guess you want to thank all, but added one answer by mistake.
So, please delete this. And if you want to thank or comment on any answer, then click on "Have a question or Comment" inside the answer box itself.

Thanks,
Tadit

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Accepted Answer · 2013-05-19T21:57:00

Follow this - Disable Backspace to Previous Page in Asp.Net[^].

Quote:

The following code will allow backspace in textbox not on form. This code works perfectly in IE7/8,FireFox,Chrome

HTML

<script language=javascript>   
            
    function cancelBack()   
    {   
        if ((event.keyCode == 8 ||    
           (event.keyCode == 37 && event.altKey) ||    
           (event.keyCode == 39 && event.altKey))   
            &&    
           (event.srcElement.form == null || event.srcElement.isTextEdit == false)   
          )   
        {   
            event.cancelBubble = true;   
            event.returnValue = false;   
        }   
    }   
  
</script>   
<body onkeydown=cancelBack()>

Guirec · Accepted Answer · 2013-05-19T21:57:00

Backspace does not specifically redirect to a "login" page but to your latest page in the History stack...
If you want to prevent this you can do it via javascript by catching onKeyPress and returning false ik ascii code is 8 (backspace).

try this (untested) :

JavaScript

document.onkeydown = function { return (event.keycode != 8); };

how to disable backspace key?

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