Show items in drop down if not exist in gallery

[andrewp3283]

Hi 

I have a weekly calendar and the user can create a new week and add all the users into that week from a SharePoint List - what i want then to be ale to so is if then the user adds a new person to the list i would like the DropDown to only show the users to select if they have not been added to the week within that gallery and not show all users.

[sperry1625 · Accepted solution]

To assist, more information is needed. Where is your user list stored, where is the "already added" user list?

To provide basic pseudo code you could do something like Filter( userList, Not( name in alreadyAddedUsers ) ). 

Without more specifics I cannot provide and more detail.

Regards,

-S

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[andrewp3283]

thanks think that as fixed it, my solution is 'Filter(collection, Not(FieldName in gallery.AllItems.FieldName)'