I want to disable that when you close a website it shows a message like ("Stay there and....do you really want to leave?"). How can I do it? The website is in a webbrowser, I cannot disable javascript because I need it.
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The code "do you really want to leave?" confirmation message is triggered on the window.onbeforeunload event. So you could add a javascript to the page which would overwrite that confirmation:
window.onbeforeunload = function () {};
To Register the javascript, use the ClientScript.RegisterClientScript method (can be added in your Page_Load :
Page.ClientScript.RegisterStartupScript(Me.GetType(), "BeforeUnloadScript", "window.onbeforeunload = function () {};", True);
Francis P
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Can you differ the client file from the code behind file? If so, `Page_Load` should already be in your code behind file. – Francis P Oct 22 '12 at 18:58
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if I understand correctly, this is a desktop application and you will need to inject javascript into the webbrowser control. you can either extend the existing webbrowser control, or, do something like this in document_complete: How to inject Javascript in WebBrowser control?
you need inject window.onbeforeunload if it is the function called by the popup (depends on the site you browse).
