Prevent Page Refresh with F5 in Silverlight

Many of the users on my platform are accidentally hitting the F5 key while typing, causing them to lose all their work. I don't want to completely block the ability to refresh the page.

I attempted using the following JavaScript solution, however it only seems to work when the user is not focused on the Silverlight application (i.e. if they click outside of the SL app, but the onkeydown event isn't triggered when the user is focused within the SL).

document.onkeydown=function(e) {
    var event = window.event || e;
    if (event.keyCode == 116) {
        event.keyCode = 0;
        alert("test");
        return false;
    }
}
javascriptsilverlight

Answer №1

One effective method to address this issue is by utilizing the onbeforeunload event and prompting the user for confirmation. This approach helps differentiate between accidental refreshes or closed tabs from intentional actions, simplifying the handling process.

window.onbeforeunload = function(e) {
    return 'Are you sure you want to leave without saving your changes?';
};

If there are unsaved modifications, consider displaying the confirmation dialog selectively.

Answer №2

Here's a possible solution:

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;
            }
    }
}

Note: Using ctrl + r can also trigger a refresh.

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