/api/guides/indicators Defect: Referencing Custom Indicators

BUG REPORT:

Bug Name: Fail to compile example code from Indicator Guide.
Bug ID: (It will be automatically created by the BUG Tracking tool that your organization uses once you save this bug)
Area Path: /api/guides/indicators
Build Number: Software Version Number 1.27.133
Severity: ? (High/Medium/Low) or 1
Priority: ? (High/Medium/Low) or 1
Assigned to: 
Reported By: CentraCube
Reported On: 11-26-2014
Reason: Defect
Status: New/Open/Active (Depends on the Tool you are using)
Environment: Windows 8 64-bit

Description:
The unmodified application code fails to compile. 

Steps To Reproduce:

1) From Referencing Custom Indicators copy your example application code into a newly created indicator:

[Indicator(IsOverlay = true, TimeZone = TimeZones.UTC)]
public class SampleReferenceSMA : Indicator
{
    [Parameter("Source")]
    public DataSeries Source { get; set; }
 
    [Parameter(DefaultValue = 14)]
    public int SmaPeriod { get; set; }
 
    [Output("Referenced SMA Output")]
    public IndicatorDataSeries refSMA { get; set; }
 
    private SampleSMA sma;
 
    protected override void Initialize()
    {
        sma = Indicators.GetIndicator(Source, SmaPeriod);
    }
 
    public override void Calculate(int index)
    {
        refSMA[index] = sma.Result[index];
    }
}

2. I assume you intend to have syntax compliant code examples:

using System;
using cAlgo.API;
using cAlgo.API.Internals;
using cAlgo.API.Indicators;

namespace cAlgo
{
    [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC)]
    public class SampleReferenceSMA : Indicator
    {
        [Parameter("Source")]
        public DataSeries Source { get; set; }

        [Parameter(DefaultValue = 14)]
        public int SmaPeriod { get; set; }

        [Output("Referenced SMA Output")]
        public IndicatorDataSeries refSMA { get; set; }

        private SampleSMA sma;

        protected override void Initialize()
        {
            sma = Indicators.GetIndicator(Source, SmaPeriod);
        }

        public override void Calculate(int index)
        {
            refSMA[index] = sma.Result[index];
        }
    }
}

3. Click the Manage References button,  In the Reference Manager select the Sample EMA and click Apply.

4. Click Build. 

Error CS0411: The type arguments for method 'cAlgo.API.Internals.IIndicatorsAccessor.GetIndicator<TIndicator>(params object[])' cannot be inferred from the usage. Try specifying the type arguments explicitly.

6. Reference your API document: /api/reference/internals/iindicatorsaccessor/getindicator-ff89

Syntax

public TIndicator GetIndicator(Object[] parameterValues)

7. Update your example code with the correct syntax. 

using System;
using cAlgo.API;
using cAlgo.API.Internals;
using cAlgo.API.Indicators;

namespace cAlgo
{
    [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC)]
    public class SampleReferenceSMA : Indicator
    {
        [Parameter("Source")]
        public DataSeries Source { get; set; }

        [Parameter(DefaultValue = 14)]
        public int SmaPeriod { get; set; }

        [Output("Referenced SMA Output")]
        public IndicatorDataSeries refSMA { get; set; }

        private SampleSMA sma;

        protected override void Initialize()
        {
            sma = Indicators.GetIndicator<SampleSMA>(Source, SmaPeriod);
        }

        public override void Calculate(int index)
        {
            refSMA[index] = sma.Result[index];
        }
    }
}

8. Build

Output: Build Successful