private void Listbox_MouseUp(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Left)
{
return;
}
ThisIndexHasBeenChangedProgrammatically = -1;
if (Listbox.SelectedIndex == -1) //true when nothing is selected
{
}
else if (!CheckIfThumbMouseButtonsHaveBeenPressed(e))
{
if (Listbox.Items.Count > 0)
{
Listbox.MouseDown -= Listbox_MouseDown;
_mouseUpIndex = Listbox.IndexFromPoint(Listbox.PointToClient(Cursor.Position));
HandleSelectionChange();
if (Listbox.SelectedIndex != -1)
{
OnSelectionReady?.Invoke(this, EventArgs.Empty);
}
}
}
Listbox.SelectedIndexChanged += Listbox_SelectedIndexChanged;
}
