OnMarketDepth

[GKonheiser]

Morning, If I want to use OnMarketDepth to watch for changes in the size of the bid or offer would I use this, for example:-

protected override void OnMarketDepth(MarketDepthEventArgs e)
{
    if (e.MarketDataType == MarketDataType.Ask && (e.Operation == Operation.Update || e.Operation == Operation.Remove))
     {
     }
}

Or can I just use:-

protected override void OnMarketDepth(MarketDepthEventArgs e)
		{
			if(e.MarketDataType == MarketDataType.Ask || e.MarketDataType == MarketDataType.Bid)
			{
				
			}
		}