cancel tab control page-change

[Rachel Suddeth]

I have a tabbed ap, and I want to provide a message and give the user a
chance to change
there mind if they try to change tab pages in the middle of an update
(otherwise just cancel the update and allow the change.) I thought the
TabPage.Validat ing event would be the thing, and as long as buttons and tab
page changes are done by mouse clicks, it seems to work fine. But if I use a
hot key to press "Cancel" or "Save", it seems to raise the Validating event
on the tab page, and then the message is stupid and annoying. Event looks
like this:

// This works fine as long as you use the mouse to click the buttons, but
// if hotkeys are used, it gets called when it shouldn't
private void tabSetup_Valida ting
(object sender, System.Componen tModel.CancelEv entArgs e)
{
if ( AddUpdateMode )
{
DialogResult result = MessageBox.Show (
"You may lose unsaved changes. Continue anyway?",
"Canceling Add/Update",
System.Windows. Forms.MessageBo xButtons.OKCanc el);
if (result == DialogResult.Ca ncel)
e.Cancel = true;
}
}

1) Why would using hot-keys to press a button trigger the TabPage's
Validating event when clicking the button with the mouse doesn't?

2) Any suggestions for how to make it work as I want... only pop up this
message if we're actually leaving the tab page, and actually cancel the
action (don't leave) if the "Cancel" button is chosen.
_______________ _______________ _______________ _______________ __
Roydan Enterprises Ltd
602 North 9th Street
Manitowoc, WI 54220-3924