Combobox in firemonkey without using Fdquery

Question

I have a states combobox in my register, where I connect via livebindings with an Fdmemtable to save the data in the database. How could I get the index item of the selected item in the combo?

The only bidirectional Binding I found was Selectedvalue, only it returns the item string and I need the index.

I don’t want to load my combo from an Fdquery or Fdmemtable

I’m using the following code:

ACombo.Items.AddObject(GetPropValue(FListaCombo.Items[I], FCampoDescricao), FListaCombo.Items[I]);

I use RAD Studio XE 10.2

Edited:

Note: My project is in firemonkey (FMX)

Itemindex generates a one-way link

Selectedvalue generates a bidirectional link, only it only returns the text and I want the index (or id)

Answer 1

If it returns the Item String, use the native class function TStrings.

Ex: ComboBoxX.Items.IndexOf('o_que_ele_retornou_string');

See internal IDE documentation: Tstrings - > Indexof.

Note. If the String appears more than once in the List, it will return the index of the first!

Edit.

For manual connection, it should be kept in mind that the "Binding" does not bring all properties, you should select the component in the LiveBindingis Design and press CTRL+N and check the desired property!