How to disable the F5 key

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Dear Friends,

How to disable the F5 key.
I don't want to refresh my webpage.
I have already removed toolbar and menubar from the window.
Kindly guide me on this.

Regards,
AP

Posted 18-Jun-12 19:39pm

Arunprasath Natarajan

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Vani Kulkarni · Answer 1 · 2012-06-18T19:45:00

Solution 1

See if below code helps:

JavaScript

document.onkeydown = function() 
{
    switch (event.keyCode) 
    {
        case 116 : //F5 button
            event.returnValue = false;
            event.keyCode = 0;
            return false;
        case 82 : //R button
            if (event.ctrlKey) 
            {
                event.returnValue = false;
                event.keyCode = 0;
                return false;
            }
    }
}

Also have a look at below link:

http://chandradev819.wordpress.com/2010/07/03/how-disable-f5-keyword-using-javascript-in-asp-net/[^]

Posted 18-Jun-12 19:45pm

Vani Kulkarni

Comments

Prasad_Kulkarni 19-Jun-12 1:53am

Good answer, in quick time, +5!

Vani Kulkarni 19-Jun-12 2:01am

thanks!

Arunprasath Natarajan 19-Jun-12 2:24am

Dear Prasad and Vani,
This works fine. But I am opening a child window which has only url tab.
I have give alert in function, it works but still it refresh the page. kindly guide.

Ubaid ur Rahman IT 19-Jun-12 2:46am

Helloo Boss !! where should we write this code....I mean in Which Page.

Arunprasath Natarajan 19-Jun-12 3:39am

The page which you want to block

Prasad_Kulkarni · Answer 2 · 2012-06-18T19:52:00

Call this function on the onKeyDown event:

C#

document.onkeydown = function(e) {
      // keycode for F5 function
      if (e.keyCode === 116) {
        return false;
      }
      // keycode for backspace
      if (e.keyCode === 8) {
        // try to cancel the backspace
        return false;
      }
    };

This will prevent from F5 reload and backspace back.
Ref.:Disable F5[^]

Also have look for alternatives:
Can the F5 key be disabled [^]

Here you can find example using javaScript:
Disable browser F5 Key[^]