Disable F5 in WebBrowser [duplicate]

This question already has answers here: Closed 12 years ago.

Possible Duplicates:

Disable browser's back button

How do I disable the F5 refresh on the browser?

Hi,

I created an a开发者_JS百科pplication in C# that will download data from the internet (and this is done one time only) and put it in a webbrowser and this data should be static. I want to know if there is a way to disable the F5 key from doing a refresh?

I tried injecting javascript to disable F5 but it will still refresh the webbrowser.

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You cannot disable F5 (or other browser shortcut keys) via JavaScript.

Setting the WebBrowserShortcutsEnabled property of the WebBrowser control to false should accomplish what you're trying to do.

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call this function on the onKeyDown event

 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.