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Decimal Column

FdcDecimalColumn is used for fixed-precision numeric values such as money, percentages, and business metrics. It combines numeric editing with display-only affixes and optional FdcFormatSettings overrides.

Decimal column sample
Loading FDC sample…
FdcGrid(
  dataSet: pricingRows,
  options: const FdcGridOptions(autoEdit: true),
  columns: const [
    FdcTextColumn(fieldName: 'product', width: 180),
    FdcDecimalColumn(fieldName: 'unit_price', width: 120, prefixText: r'$ '),
    FdcDecimalColumn(fieldName: 'discount', width: 110, suffixText: ' %'),
    FdcDecimalColumn(fieldName: 'margin_pct', width: 110, suffixText: ' %'),
  ],
);

Key characteristics​

  • Binds to FdcDecimalField.
  • Supports allowNegative to restrict sign policy.
  • Supports prefixText and suffixText for display-only decoration.
  • Supports formatSettings to override decimal separator and thousands presentation.

Formatting guidance​

const FdcDecimalColumn<dynamic>(
  fieldName: 'unit_price',
  label: 'Unit price',
  prefixText: r'$ ',
)

Use affixes and format settings for presentation; keep canonical decimal values in the dataset.