MarketDataType Variable Storage

[safetrading]

I'm trying to compare the current Ask & Bid to the previous, but I get errors when I store the Ask & Bid price as variables and try to use them. Is there a different syntax to store use MarketDataType variables or to recall them?

Thanks,
Safetrading

#region Variables
double LastAsk = 0;
double LastBid = 0;
#endregion

protectedoverridevoid OnMarketData(MarketDataEventArgs e)
{




if (e.MarketDataType == MarketDataType.Ask && MarketDataType.Ask > LastAsk)
Print(" Ask = " + e.Volume + " +");


if (e.MarketDataType == MarketDataType.Ask && MarketDataType.Ask <= LastAsk)
Print(" Ask = " + e.Volume);
}

[NinjaTrader_Bertrand]

safetrading, the volume give you long type returns with NT7, not double. Also the MarketDataType.Ask is event type here and thus not comparable to a double / long value, try checking for e.Volume here comparing to your previous storied long value for bid / ask.

[safetrading]

I understand your reply about the double variable, but how can I make comparrisons to MarketDataType.Last to see if the current data is lessor or greater than the last since it is not comparable to a double?

[NinjaTrader_Ray]

Try something like this:



protectedoverridevoid OnMarketData(MarketDataEventArgs e)
{


if (e.MarketDataType == MarketDataType.Ask)
{
if (e.Price > LastAsk)
// Do something
LastAsk = e.Price;
}
}

[safetrading]

Thanks, that got me going.

Have a nice day.

Try something like this:



protectedoverridevoid OnMarketData(MarketDataEventArgs e)
{


if (e.MarketDataType == MarketDataType.Ask)
{
if (e.Price > LastAsk)
// Do something
LastAsk = e.Price;
}
}