public override bool Remove(Document i)
{
if (i.CanClose)
{
var result = new DocumentClosingEventArgs(i);
OnClosing(result);
return(!result.Cancel ? base.Remove(i) : false);
}
return(false);
}
public override void RemoveAt(int i)
{
if (this[i].CanClose)
{
var result = new DocumentClosingEventArgs(this[i]);
OnClosing(result);
if (!result.Cancel)
{
base.RemoveAt(i);
}
}
}
void OnClosing(DocumentClosingEventArgs e) => Closing?.Invoke(this, e);