B4J Question How to add an item to an html Combo/Listbox

[B4JExplorer]

Hi,



SetVal doesn't seem to work as suggested here, or as it does with text or other elements.

https://www.b4x.com/android/forum/threads/specular-combobox-or-listbox-on-the-html-page.66128/

lstStudentsID.SetVal(students.Get(index))


So if the id for the html Listbox is called

lst_variables

, and the Future is called

f_variables


, how do you add an item to the lst_variables JQueryElement, in B4J?

And, then how do you locate the Selected item?

 

[Erel]

Have you seen the DBUtils example: https://b4x.com:51041/dbutils/index.html

The code is in WSDBUtilsExample module.

 

[B4JExplorer]

Have you seen the DBUtils example: https://b4x.com:51041/dbutils/index.html

The code is in WSDBUtilsExample module.

Ok, thanks Erel.

 

[B4JExplorer]

I can only locate the fxml version, in the search bar. Can you point to the web version of DbUtils?

 

[B4JExplorer]

I locate the code in the non-mysql server example.

https://www.b4x.com/android/forum/attachments/serverexamplenomysql-zip.40079/


All set, thanks.

 

[B4JExplorer]

Ah, I see, said the blind man.

For anyone who's paying attention, and wants to avoid searching down the code -


The crucial code for appending to a listbox is in the FillSelectBox() sub, in WSDBUtilsExample.bas,


sb.Append("<option value='").Append(val).Append("'>").Append(val).Append("</option>")

(sb is a StringBuilder instance)

, which is then converted to html with

jq.SetHtml(sb.ToString)


, and the change event for selecting another item in a listbox, is simply _Change:

Sub lstStudentsId_Change (Params As Map)