switch for esignal paper trade

[shogun]

i have attached esignal paper trade to one of my formulas so that it will automatically paper trade the formula in real time, and that is working fine.

i am now trying to put a switch into the formula so i can turn the paper trade on & off,

these are my workings for the switch


var vBrokerType=0; //0=none, 1= esignal paper trade

if(vBrokerType==1){
var PTtrade = new PaperTradeBroker;
}
if (vBrokerType==0){
var PTtrade = null;
}


the efs runs with the switch off until it trys to execute a trade then i get a syntax error , "PTtrade has no properties" what do i need to do to make it work,

thanks

[eSignal_JasonK]

Hello shogun,

You could check to see if PTtrade is null before each line of code that executes a trade or create a boolean flag based on your switch.


if (PTtrade != null) {
// allow trade
}

[shogun]

thanks jason,

i have now got the switch to work ,what i did was add a "trade function" after the "function main" and made it so the "trade function" would not run unless the switch was on.

now what i want to try and do is make the switch operate in the edit studies window, instead of opening the efs editor, how is that done .

this is what i currently have


var vBrokerType=1; //0=none, 1= esignal paper trade

if(vBrokerType==1){
var PTtrade = new PaperTradeBroker;
}
if (vBrokerType==0){
var PTtrade = null;
}



function Trade(TradeType) {

if (vBrokerType == 1){

if (TradeType== x ){
PTtrade.Buy(getSymbol(),(Contracts),PaperTradeBrok er.MARKET);
}

[eSignal_JasonK]

Hello shogun,

Here's a code example of what you'll need to do below. Setting this up with the FunctionParameter class in preMain isn't necessary but it helps with basic error checking. You could alternatively just define the input parameter for the Edit Studies option within the parentheses of the main( ... here ... ) function.

function preMain() {
    setStudyTitle("test");
    setPriceStudy(true);

    var fp1 = new FunctionParameter("bBroker", FunctionParameter.STRING);
    fp1.setName("Enable Trading");
    fp1.addOption("true");
    fp1.addOption("false");
    fp1.setDefault("false");
}

var vBrokerType = 0;
var bEdit = true;

function main(bBroker) {

    if (bEdit == true) {    // only runs after Edit Studies change
        if (bBroker == "false") vBrokerType = 0;
        if (bBroker == "true") vBrokerType = 1;
        bEdit = false;
    }

    // your formula code
    
    return;
}