Hi Warren,
I have already filtered the large data source and now have a collection with a single row of data about one location, using the below code;
ClearCollect(colSelectedLocationKPI,Filter(Filter(KPI_Data,Title=LocationFilter.Selected.Title),Year=(ThisYear)-1));
I have added these to a table to show you the result.
Ideally, I would like to be able to select a column, from the list of column names in DropDown1 and have the value of that column go into the textbox.
I have not been able to do this, so I have now thought that if I can transpose the collection to a new collection or table, I can then simply filter that collection based on the value in my dropdown and return the answer to a new gallery with only one item.
I can then use the value in a textbox of that gallery for calculations.
See the attached image to help explain