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select box select index from previous table



cbabekos
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Posted 21 July 2020 - 13:29 PM

hi ,

 

i have a problem.

i have created two tables and i connected this with function set_relation.

on 2nd table i want to select index on a dropbox list which is connected with 1st table .

 

p.e. i have a table with projects and a 2nd table with projects details .

 

i use the function add_action to create a button to go on 2nd table.

 

now , on 2nd table when i want to add details on project i want to pre-selected dropdownlist index which is connected with 1st table .

 

any ideas ?

 

help !