protected virtual void OnCancelPreview(CancelPreviewEventArgs e)
{
if (CancelPreview != null)
{
CancelPreview(this, e);
}
}
protected override bool ProcessDialogKey(Keys keyData)
{
//
// Overrides the default handling of the Escape key. When a cancel
// button is present, the Escape key is not published through
// KeyPreview. Because of this, no alternative handling is possible.
// This override catches the Escape key before it is processed by
// the framework and cancels default handling when the CancelPreview
// event signals it has handled the Escape key.
//
if ((keyData & (Keys.Alt | Keys.Control)) == Keys.None)
{
Keys keyCode = (Keys)keyData & Keys.KeyCode;
if (keyCode == Keys.Escape)
{
var e = new CancelPreviewEventArgs();
OnCancelPreview(e);
if (e.Handled)
{
return(true);
}
}
}
return(base.ProcessDialogKey(keyData));
}
protected override bool ProcessDialogKey(Keys keyData)
{
//
// Overrides the default handling of the Escape key. When a cancel
// button is present, the Escape key is not published through
// KeyPreview. Because of this, no alternative handling is possible.
// This override catches the Escape key before it is processed by
// the framework and cancels default handling when the CancelPreview
// event signals it has handled the Escape key.
//
if ((keyData & (Keys.Alt | Keys.Control)) == Keys.None)
{
Keys keyCode = (Keys)keyData & Keys.KeyCode;
if (keyCode == Keys.Escape)
{
var e = new CancelPreviewEventArgs();
OnCancelPreview(e);
if (e.Handled)
{
return true;
}
}
}
return base.ProcessDialogKey(keyData);
}
protected virtual void OnCancelPreview(CancelPreviewEventArgs e)
{
if (CancelPreview != null)
{
CancelPreview(this, e);
}
}
