Manual lookup

Hello,
We have and template form, and added Drowpdown to make a lookup function.

I configred the dropdown, we can see the external table data in it, but when we change the row of pincipal table the drodown not change value.

Can you help us? Thank you in advance.

Do you see any errors on the developer tools? You are linking the Value property to ${oferta.CodigoCliente}. What does it shows when you access that property?

No errors on developer tools. Yes in Value property we asign this variable. And this is the info:

Gracias por tu ayuda!

Place a breakpoint right after you setting this Value property and post de value of oferta. I'd recommend initializing oferta as an empty array []. Remove the ValueProperty of the dropdown and set the Value property to oferta (not oferta.CodigoCliente). After this oferta should host all the properties of the dropdown selected value and you can access them all via ${oferta.Property}.

Hello,
Finally we have the solution.
The problem was that the foreign key field was a string, and it had to be an integer.

Thank you!