Storing Variables at execution

[djkiwi]

Hi Guys, how do you store variables prior to execution then call them up after the execution? For example if I entered a trade and wanted to use the EMA value that existed prior to the execution as a target.

I'm struggling to find any examples on the forum on how to do this?

Thanks
DJ

[NinjaTrader_Joydeep]

Hello djkiwi,
I am happy to assist you.

You can declare a private field for your need. A basic code snippet would look like this

In Variable

private double myEMATarget = 0; //here we store our value

In OnBarUpdate (or any other place where you assign and call the variable myEMATarget

if (condition) //condition for long entry
{
  EnterLong(..);
  myEMATarget = EMA(14)[0]; //get the value of EMA 14
}

//and our exit condition

//execute only if we are in a long
if (Position.MarketPosition == MarketPosition.Long)
{
        //if last price is greater than myEMATarget (we assigned a value to myEMATarget when we made our entry) we exit our trade
	if (Close[0] > myEMATarget)
			ExitLong(..);
}

Hopefully you can built upon the code snippet which I provided above.

Please let me know if I can be of any further help.

Regards,
Joydeep.

[tonynt]

Hello,

I´m trying to store a closeprice (or might also be the GetCurrentAsk()) to a variable when price crossabove a certain level. It works that the bool shows correct true and false when crossing above or below and I´d like to store that value when the crossabove occurred. But the value of the variable is always updated.

if(CrossAbove(Close, R1,1))
Variableup = true;
VariableR1 = Close[0];
Print("VariableR1: " + VariableR1); shows me in output window that the variable is updated with every new close.

What do I have to change please so that the price when crossed is stored and doesnt change?

Thank you
Tony

[NinjaTrader_Jesse]

Hello,

Thank you for the question.

Please feel free to start new topics for any new questions as this is a very old thread that is not necessarily related.

It looks like you are missing curly braces, this would be a basic fundamental of "if" statements and how they work in C#. you can read more about these here: http://www.techotopia.com/index.php/...th_if_and_else

An if statement without curly braces can execute 1 command, in your example:

if(CrossAbove(Close, R1,1))
Variableup = true;
VariableR1 = Close[0];

You have 2 commands to execute but have no curly braces, by the nature of how C# works, this would only apply to
Variableup = true;

Instead you would need to add the curly braces so more than 1 command can be executed or:

if(CrossAbove(Close, R1,1))
{
    Variableup = true;
    VariableR1 = Close[0];
}

Please let me know if I may be of further assistance.

[tonynt]

Hello,

thank you for your reply.

I have added the curly braces but the variable still does update after the cross so that I don´t have the value when the cross has occurred stored to the variable.

??

Thank you
Tony

[NinjaTrader_Jesse]

Hello,

That would have been the solution for what was provided, I would suggest creating a new indicator and test the specific case outside of your current script to better locate the error.

After creating the test script, if you are still seeing the same, post the test script and I would be happy to look at that specific syntax being used in which is not producing the expected result.

Please let me know if I may be of further assistance.

[tonynt]

Hello,

thank you for your support. Sent an email with few lines of output window.

I didnt mention - this is directly coded in a strategy (with COBCfalse), not an indicator.

Thank you
Tony