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Attribute format controls

Every control on the Format tab, grouped by data type, with defaults and choices. Use it to check alias, number, currency, measurement, and date options.

Format controls change how attribute values display in popups and data search — turning 12345.6789 into 12,345.68, $12,345.68, 12.3 km, or 9 May 2026. This page lists every control on the Format tab, grouped by data type, with defaults and choices. The underlying value in your data is never altered.

The Format tab appears for vector layers (point, line, polygon). Raster and WMS layers do not have it.

Per-row controls

Each attribute on the layer gets one row on the Format tab. Three controls per row:

Field alias

Default The original field name
Where Text input on the left of each row

The display label for the attribute. Affects popup labels, data search results, and the legend wherever it names the field. The underlying field name in your data is unchanged. See How to rename an attribute label.

Format

Default Auto detect
Where Pencil icon in the middle of each row, opens the Attribute formatting drawer

The display format for the value. Set it in the drawer that opens when you click the pencil. Per-data-type controls are listed below.

The format chip and pencil are hidden for text, true/false, ID, and nested-data columns — those have nothing to format.

Visibility

Default Visible
Choices Visible, Hidden
Where Eye icon on the right of each row

Controls whether the attribute appears in the default popup and data search results. Hidden attributes are still on the layer and still drive styling and filters — they’re excluded from display only. See How to hide an attribute from popups.

A header-level eye icon toggles visibility across every attribute at once.

Format drawer — Data Type

The drawer is the right-side panel that opens when you click the pencil on a row.

Data Type

Default Auto detect
Choices None, Auto detect, Number, Currency, Measurement, Date & Time
Where First control in the drawer

The category of formatting to apply. Each choice unlocks its own sub-controls below.

None applies no formatting. Auto detect lets MangoMap pick based on the value. The other four (Number, Currency, Measurement, Date & Time) each carry the sub-controls listed in the sections below.

Number sub-controls

Available when Data Type is Number.

Number Format

Default Rounded
Choices Integer, Float, Rounded

How the numeric value displays:

  • Integer — whole number, no decimals (12345.67 → 12345).
  • Float — full precision as stored (12345.67 → 12345.67).
  • Rounded — rounds to the number of places in Decimals (2 by default) and always shows them (12345.6789 → 12,345.68). Unlocks the Decimals control.

Decimals

Default 2
Choices 0, 1, 2, 3, 4, 5, 6
Where Visible only when Number Format is Rounded

Number of digits after the decimal point.

Currency sub-controls

Available when Data Type is Currency.

Currency Symbol

Default $ (Dollar Sign)
Choices 31 currency symbols including $, €, £, ¥, and major regional currencies

The symbol prepended (or appended, depending on the currency) to every value. Each option in the dropdown shows the symbol next to the currency name (for example, $ Dollar Sign, € Euro).

Decimals

Default 2
Choices 0, 1, 2, 3, 4, 5, 6

Number of digits after the decimal point. Most currencies conventionally use 2 (cents/pence), but Japanese yen and similar use 0.

Measurement sub-controls

Available when Data Type is Measurement. The stored numeric value is interpreted in the chosen unit and converted at display time.

Unit Type

Default Distance
Choices Distance, Area, Velocity

The category of measurement. Determines which unit options appear in the Unit dropdown below.

Unit

Default Metres (Distance), Square Metres (Area), Metres per second (Velocity)
Where Choices depend on the selected Unit Type

Per Unit Type:

  • Distance: Millimetres, Centimetres, Metres, Kilometres, Inches, Feet, Yards, Miles, Nautical Miles.
  • Area: Square Millimetres, Square Centimetres, Square Metres, Square Kilometres, Square Inches, Square Feet, Square Yards, Square Miles, Hectares, Acres.
  • Velocity: Millimetres per second, Centimetres per second, Metres per second, Kilometres per hour, Feet per second, Miles per hour, Knots.

Decimals

Default 2
Choices 0, 1, 2, 3, 4, 5, 6

Number of digits after the decimal point.

Date & Time sub-controls

Available when Data Type is Date & Time.

Format Style

Default Date only
Choices Date only, Datetime

Whether to display only the date portion or include the time of day.

Date Format

Default YYYY-MM-DD
Choices DD-MM-YYYY, YYYY-MM-DD, MM-DD-YYYY, Long format

The date pattern. Long format renders as Sat 09 May 2026 (or Sat 09 May 2026 10:00:00 AM when Datetime is also set). The other three render literally as their pattern shows.

Preview

Where Bottom of the drawer

Live preview of the formatted sample value as you change settings.

Where formatted values appear

Formatted values are used by:

  • The default popup on the map.
  • Custom popup templates (variable substitution).
  • Data search result cards.
  • Print and export popup overlays.
  • The default popup side panel.
  • Legend numbers at the ends of a continuous colour gradient and beside a size key.

Raw (unformatted) values are used by:

  • Legend class-break labels on quantity-styled layers.
  • Filters and queries.
  • Style category labels and class boundaries.
  • Exports of the underlying data (CSV, GeoJSON).

See How attribute formatting works in MangoMap for the full model.