TOptValue_TimeOnly

What Is It?

TOptValue_TimeOnly is a class used to define time-only parameters for custom indicators. These parameters appear in the indicator settings panel and allow the user to input or adjust time values without date information, such as daily trading session times, specific hours of the day, or recurring time-based events.

You must use the createTOptValue_TimeOnly() method of the api object inside Init() method to create an instance.

The UI for this parameter type uses the TimeValue enum, which provides predefined time values in 15-minute intervals from 00:00 to 23:59.

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When to Use

Use TOptValue_TimeOnly when you need a configurable parameter for time selection, such as:

• Trading session start/end times

• Market open/close times

• Recurring time-based events

• Any time input from the user (without date)

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Syntax

// Declare the parameter in the class fields
public MyTimeParameter!: TOptValue_TimeOnly;

public Init(): void {
    // Create the parameter
    this.MyTimeParameter = this.api.createTOptValue_TimeOnly(defaultTimeValue);

    // Register the parameter
    this.api.RegOption("MyTimeParameter", TOptionType.TIME_ONLY, this.MyTimeParameter);
}

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Example

export default class SessionIndicator extends IndicatorImplementation {
    public SessionStart!: TOptValue_TimeOnly
    public SessionEnd!: TOptValue_TimeOnly

    public Init(): void {
        // Create the parameters
        this.SessionStart = this.api.createTOptValue_TimeOnly(TimeValue['09:00'])
        this.SessionEnd = this.api.createTOptValue_TimeOnly(TimeValue['17:00'])

        // Register the parameters
        this.api.RegOption('SessionStart', TOptionType.TIME_ONLY, this.SessionStart)
        this.api.RegOption('SessionEnd', TOptionType.TIME_ONLY, this.SessionEnd)
    }
}

In this example:

• SessionStart defines when the trading session begins.

• SessionEnd defines when the trading session ends.

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Notes

• After creating a parameter, don't forget to register it using this.RegOption in the Init method.

• Use TOptionType.TIME_ONLY when registering this parameter type.

• Default values should use the TimeValue enum.

• You can access the value using this.MyTimeParameter.value.

• The UI presents users with a dropdown of time values in 15-minute intervals.

• This is useful for recurring daily events or session-based filtering.