当用户单击关闭窗口时创建的弹出消息时，是否可以从用户那里获得响应？

Question

So I have a Silverlight project and in this Silverlight project I have a C# file where in one of the methods I use the following code to call a Javascript function:

HtmlPage.Window.Invoke("closeApplication");

The closeApplication function is as follows:

function closeApplication() 
{
    window.close();
}

This produces the pop message that says:

The webpage you are viewing is trying to close the window.

Do you want to close this Window?

Yes No

I want to know if there is a way to get the users response because if it's no. In my c# file after I call the HtmlPage.Window.Invoke("closeApplication"); function, I want to call a different method in that c# file.

Answer 1

Just cancel event close:

Try this:

   MessageBoxResult result = 
                      MessageBox.Show(
                        msg, 
                        "Data App", 
                        MessageBoxButton.YesNo, 
                        MessageBoxImage.Warning);
                    if (result == MessageBoxResult.No)
                    {
                        // If user doesn't want to close, cancel closure
                        e.Cancel = true;
                    }