Include (None) alternative not showing up in LIST BOX
I have a Property Control I created. I Set Property Value throught: Unique value in colmumn(so I wouldn't need to continuously update it). I checked the Include (None) alternative, because i wanted the option of having it select all values. From there I am then using that field to filter the data in the visualization to be that specific unit.
I have attached a document with some of the screen shots of what I am seeing.
Any ideas would be greatly appreciated!