I am currently implementing an application for timesheet based on the following "diagram":
I'm having issues implementing the main screen to feed the central table "Temps".
I am not able to feed the lookup combobox with the right data (task assigned in the entity "Mission").
Could you please help me or give me a hint in order to achieve what I want ?
There is no such thing as a ternary relationship in PowerApps. There can only be One-to-one, One-to-Many or Many-to-Many. The latter is really two One-to-Many relationships. It may help to review my series in the News and Annoucements part of the forum. It starts at https://powerusers.microsoft.com/t5/News-Announcements-Formerly/Database-Design-Fundamentals-and-Pow... and the most pertinent one is https://powerusers.microsoft.com/t5/News-Announcements-Formerly/Relational-Database-Principles-and-P... . I hope that this helps with your design issues.
Thank for you reply and the link was useful.
I think the ternary relationship is just modelling (the main table "temps" has Many-to-One relationship with other entity), the problem that I have is to populate the entity "temps".
I don't know how to proceed to populate and filter dropdown combo box, everything I tried didn't work in order to fill the form correctly.
I'll add some details to clarify.
The following field circled in red are the lookup fields I need to pre fill with informations I gave in other screens before.
(ie. the actions assigned to the mission, and the used assigned to the project)
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