DHTMLX Planning Engine Documentation

Basis#

The size of the time buckets that resource load is measured in. Set it in LevelingOptions.Basis and ProfileQuery.Basis; LoadProfile.Basis reports the basis a profile used.

Declaration#

namespace Plen;

public enum Basis
{
    Hour,
    Day,
}

Variants#

Variant Description
Hour One-hour buckets, each starting on the hour.
Day One-day buckets, each starting at midnight.

When an options property of type Basis? is null, the basis comes from SchedulingConfig.DurationUnit: Day for TimeUnit.Day, Hour for TimeUnit.Hour and TimeUnit.Minute.

Basis is a plain enum with no parse or spelling helpers. The Plen.Wire package handles the JSON spellings "hour" and "day".

Example#

using Plen;

var from = Moment.FromYmdHm(2026, 4, 6, 0, 0) ?? throw new InvalidOperationException("invalid date");
var to = Moment.FromYmdHm(2026, 4, 7, 0, 0) ?? throw new InvalidOperationException("invalid date");

// Level on daily buckets, whatever the project's duration unit.
var leveling = new LevelingOptions { Basis = Basis.Day };

// Read one day of load in hourly buckets.
var query = new ProfileQuery(from, to) { Basis = Basis.Hour };