protected internal virtual void OnControlRemoved(Control control, int index)
{
if (!_state[s_stateDisposing])
{
SuspendLayout();
RowManager.OnControlRemoved(control, index);
// if previously added - remove.
if (control is ISupportToolStripPanel controlToBeDragged && controlToBeDragged.ToolStripPanelRow == this)
{
controlToBeDragged.ToolStripPanelRow = null;
}
ResumeLayout(true);
if (ControlsInternal.Count <= 0)
{
ToolStripPanel.RowsInternal.Remove(this);
Dispose();
}
}
}