MPP: Incorrect Timephased work in Manual task mode

[Fabian-Schmidt]

Hi, Thank you for this library. I am using the MPXJ library to read time phased work from MPP files. I encountered an issue when reading the work via MPXJ. It does not match what is reported in Project in the Task usage view.

Simplified scenario is as follow:

1. New blank Project.
2. Create a Task and Resource and create a 3 day assignment. The task is by default in manual schedule mode.
3. Modify the start time from 8:00(default) to 7:00. Manual task mode allows this change. Auto scheduled will not allow this change as it is outside of the work calendar.

	Day 1	Day 2	Day 3
Project	9h	8h	7h
MPXJ	8.3478..h	8.3478..h	7.3043..h
MPXJ with setUseRawTimephasedData	8.3478..h	8.3478..h	8.3478..h

The sum is correct but the distribution is wrong.

I am using the latest .NET version of the MPXJ library.

MPP example file: ManualTaskTimephasedv2.zip

[joniles]

Hello! Thanks for opening this issue. The timephased work handling code in MPXJ does have some shortcomings and I am planning to begin overhauling this code in the next few months to address this and other related problems. Apologies that this won't be a short term fix.

In the meantime you can try setting the "Use Raw Timephased Data" flag to true:

MPPReader reader = new MPPReader();
reader.setUseRawTimephasedData(true)

this should give you the data exactly as it is represented in MS Project, but you will probably need to write your own code merge/segment it into the timescale you need.

I will update this issue once I have made progress with the longer term work on improving timephased data handling.

[Fabian-Schmidt]

Thanks for the quick response. When using "Use Raw Timephased Data" the result is worse. As it reads 8.3478..h for every day. So the sum does no longer match. I updated the first message with this new data.