What is the best way to integrate varying number formats based on user locale in UI5?

In my SAPUI5 app, I need to display numerical data based on the user's settings in the SU01 backend transaction in SAP Logon.

For instance, users can specify decimal separators as:

  1. 22,000.000 (twenty two thousand) → US format
  2. 22.000,000 (twenty two thousand) → German format

The UI5 app should be able to detect which decimal format is being used according to these settings and format the data accordingly.

I am currently referencing the "Number Format" topic found at this link, but the challenge lies in manually providing the region information. Ideally, I would like to retrieve this from the user's configured settings.

var oLocale = new sap.ui.core.Locale("en-US");
var oFormatOptions = {
  showMeasure: true
};

Answer №1

In many cases, app developers do not need to explicitly specify the locale as UI5 automatically detects the user's locale based on a heuristic method outlined in the topic Identifying the Language Code / Locale (refer to the section titled "Current Language Code / Locale").

For example, with the OData property "Freight": "22000" (of type Edm.Decimal), users can input values in their local format without requiring manual setting of the locale by the app. A demonstration is provided here: https://embed.plnkr.co/b32woxbQmdj5dTRu?show=view/Root.view.xml,preview:?sap-ui-xx-componentPreload=off

If a user has set "English (United States)" as their preferred language at the top of their browser settings:
https://i.sstatic.net/lAyIl.gif

If "German (Germany)" is prioritized at the top:
https://i.sstatic.net/VKC34.gif

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