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;
}
}
}
Same as before, you can add this to your main javascript file and place it in the head part of your page.
It works by adding a function to your page's onkeydown event. Then we simply get which button was pressed by using event.Keycode (116 for F5 and 82 for R). Also, notice the "if" statement for R, it simply checks if the control button was pressed at the same time as R by checking event.ctrlKey.
But there's a limitation to handling page refreshes with this code. You simply cannot control the refresh button specific to your browsers' toolbar.
So the only way to really prevent users to refresh the page is by using this code and at the same time opening your page at a new window without the toolbar.
Check http://codingresource.blogspot.com/2010/01/javascript-windowopen-in-net.html for more info on how to do that.
Hi,
ReplyDeletedocument.onkeydown = function() {
...
}
works correct with IE but not with FF.
Greetings
Steffen
yes . its only working with IE .
Deletehey it really worked for me. Thank you.
ReplyDeleteit's really working..thanks..
ReplyDeleteHi!
ReplyDeleteI'm new in this, just wonder it is work on ASP page? I'm using ASP not ASP.net.
Please let me know where is the following code to be place?
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;
}
}
}
Thanks!
Regards,
Michael
its working fine, Thanks!
ReplyDeleteworks fine in chrome...
ReplyDeletethe code is not working in firefox...........any solution????
document.onkeydown = function(e) {
ReplyDeletevar key;
if (window.event) {
key = event.keyCode
}
else {
var unicode = e.keyCode ? e.keyCode : e.charCode
key = unicode
}
switch (key) {//event.keyCode
case 116: //F5 button
alert("11");
event.returnValue = false;
key = 0; //event.keyCode = 0;
return false;
case 82: //R button
if (event.ctrlKey) {
alert("11");
event.returnValue = false;
key = 0; //event.keyCode = 0;
return false;
}
}
}
for IE,FF,Chrome. It's work
If you remove alert("11") from the above, it is not working for both IE and FF.
Deletedocument.onkeydown = function(e) {
ReplyDeletevar key;
if (window.event) {
key = event.keyCode
}
else {
var unicode = e.keyCode ? e.keyCode : e.charCode
key = unicode
}
switch (key) {//event.keyCode
case 116: //F5 button
event.returnValue = false;
key = 0; //event.keyCode = 0;
return false;
case 82: //R button
if (event.ctrlKey) {
event.returnValue = false;
key = 0; //event.keyCode = 0;
return false;
}
case 91: // ctrl + R Button
event.returnValue= false;
key=0;
return false;
}
}
Thanks For posting but i need exact key when i pressed ctr+r i.e for ctrl the key is 17
ReplyDeletefunction preventCommand(e) {
ReplyDeletevar keyCode = (e.keyCode) ? e.keyCode : e.which;
var isCtrl;
if(window.event)
isCtrl = e.ctrlKey
else
isCtrl = (window.Event) ? ((e.modifiers & Event.CTRL_MASK) == Event.CTRL_MASK) : false;
if(isCtrl) {
if(String.fromCharCode(keyCode).toLowerCase() == 'r') {
alert('They pressed Ctrl+R');
return false;
}
}
if(keyCode == '116') {
alert('They pressed F5, but you can not prevent the refresh :P');
return false;
}
return true;
}
I got the solution but when am using firefox it's not working my intention is when ever i pressed ctrl+r i have to run some functionality in my application please any one try to help me it's my humble request
This comment has been removed by the author.
ReplyDeleteDear all,
ReplyDeleteThis code is for stop the functionality of Refresh button
I have found the problem of existing code and i resolved all issues in that. pass the event attribute in function call it where you want. it is working fine in all browsers like Chrome, Mozilla Firefox, IE all versions, Opera , Safari etc.
Just copy and paste this code into your java script file and call that file where you want
===========================================
// F5 button and cntrl+r (reload) disabled
document.onkeydown = function(event)
{
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;
}
}
}
==========================================
If any Queries feel free and contact at : venkat0553@gmail.com
ramireddynec.blogspot.com
Regards,
B.V.Rami Reddy,
Senior Software Developer
this code will work perfectly.. dont use event.returnValue..
ReplyDeleteits kei.returnValue=false;
then it will work good
document.onkeydown = function(e) {
var key;
if (window.event) {
key = event.keyCode
}
else {
var unicode = e.keyCode ? e.keyCode : e.charCode
key = unicode
}
switch (key) {//event.keyCode
case 116: //F5 button
key.returnValue = false;
key = 0; //event.keyCode = 0;
return false;
case 82: //R button
if (event.ctrlKey) {
key.returnValue = false;
key = 0; //event.keyCode = 0;
return false;
}
case 91: // ctrl + R Button
event.returnValue= false;
key=0;
return false;
}
}
To refresh page in Safari, we need to use "cmd+r". but it's not working.
ReplyDelete