FormClosing event not working

Question

I would like to get a response from the user when X is selected to close the child form but instead the formclosing event just closes the form

Can anyone help? This is my code below: 

private void Form2_FormClosing(object sender, FormClosingEventArgs e)
        {
            DialogResult responseDialogResult;

            if (isDirtyBoolean)
            {
                responseDialogResult = MessageBox.Show(
                    "The data on the form has changed. Do you want to save the contents of the form to a file?", "File Change",
                    MessageBoxButtons.YesNo, MessageBoxIcon.Question);
                if (responseDialogResult == DialogResult.Yes)
                {
                    saveToolStripMenuItem_Click(sender, new System.EventArgs());
                }

Answer 1

I might be wrong, but I think its because you can't read XML from a URL. Maybe your mistaking XML for XHTML, which is eXtensibile HyperText Markup Language and its what 90% of web pages are built on these days unless you get into PHP or JavaScript and what not.
XML I believe is used primarily for web data storage on a user's PC and for small and simple database-like needs, it can be read by a web page, but is not an actual part of the build source code. Then again, I could be wrong but in all my web designing in college we never once used XML for the actual code construction of web pages.

-Scrap