Inputfield with IF

[#1]

I have two fields and when I do inputsum (<ListaPrecoCompra.Status = {{'E'},ListaPrecoCompra.Cod_lista {9100} =>} ListaPrecoCompra.Preco_v1) or

              inputsum (<ListaPrecoVenda.Status = {{'E'}, ListaPrecoVenda.Cod_lista{1100} =>} ListaPrecoVenda.Preco_v1)

The input field is working, but when I put the IF he makes the logic of IF but loses theinput.

= if (inputsum (<ListaPrecoCompra.Status = {{'E'}, ListaPrecoCompra.Cod_lista {9100}=> ListaPrecoCompra.Preco_v1}) = 0,

inputsum (<ListaPrecoVenda.Status = {{'E'}, ListaPrecoVenda.Cod_lista {1100} =>}ListaPrecoVenda.Preco_v1)

inputsum (<ListaPrecoCompra.Status = {{'E'}, ListaPrecoCompra.Cod_lista {9100} =>ListaPrecoCompra.Preco_v1}))

[#2 · Accepted solution]

Find out how. Simply prepare the ground in applying the IF load.

Then just reload and change the field and an input field.