Multi-time current bar open price

[Camdo]

In a multi-timeframe strategy,
how can the opening price of the currently building bar of another timeframe be accessed?

For example:
barsSeriesIndex 0 is a 1 minute PeriodType
barsSeriesIndex 1 is a 1 week PeriodType

When in the BarUpdate method and BarsInProgress=0, how can the opening price of the currently building weekly bar be obtained?

Opens[1][0] returns the open of the last completed bar, not the open of the currently building bar.

[NinjaTrader_JoshP]

There is no currently building bar when you are backtesting. Backtest is pure snapshots. Weekly bars come in at the end of each week. There is nothing inbetween.

In real-time you have to use CalculateOnBarClose = false and then you can access the weekly bar via Opens[1][0]