Columns express field semantics, not only cell appearance.
An FdcDecimalColumn works with decimal conversion and precision. Date, time, boolean, combo, lookup, progress, badge, memo, and custom columns carry their own presentation and editing behaviour while staying connected to the dataset field.
Pro preview adds rating and sparkline columns to the same typed column model. The same stored value can therefore be rendered, edited, filtered, validated, exported, and persisted without a chain of unrelated string conversions.
FdcGrid(
dataSet: orders,
columns: const [
FdcIntegerColumn(fieldName: 'order_id'),
FdcDateColumn(fieldName: 'order_date'),
FdcDecimalColumn(fieldName: 'amount'),
FdcComboColumn(fieldName: 'status'),
],
)
Column types
Choose columns that preserve the meaning and interaction model of each field.
Learn more →Lookups
Separate stored keys from display values while retaining search and editor behaviour.
Learn more →Custom columns
Extend presentation without leaving dataset binding and grid interaction behind.
Learn more →The grid does not accept an invalid record one cell at a time.
When a user starts typing, the dataset owns the working values. Field errors can be displayed on the editor and cell, while record-level validation can still reject the final post. Cancelling restores the complete original record, including dependent values changed during the edit.
Use onFieldChanged for calculations such as amount plus tax, then let beforePost and validation decide whether the record may leave edit state.
onFieldChanged: (dataSet, field, oldValue, newValue) {
if (field.name == 'base' || field.name == 'tax') {
dataSet.setFieldValue(
'total',
dataSet.fieldByName('base').asDouble +
dataSet.fieldByName('tax').asDouble,
);
}
},
Dense data entry needs coordinated interaction, not isolated features.
Keyboard navigation, range selection, clipboard operations, filters, sorting, pinning, moving, grouping, summaries, toolbars, and status items operate over the same dataset and grid state.
Each capability remains opt-in. A lookup grid can stay minimal; a daily operations screen can expose the full keyboard and data-shaping workflow without replacing its underlying component.
Keyboard navigation
Move, edit, commit, and continue through records without returning to the mouse.
Learn more →PRO PREVIEWRange and clipboard
Select cell ranges and copy or paste through the grid editing pipeline.
Learn more →Summaries and status
Show totals, averages, counts, record position, and application-specific state.
Learn more →Start with one dataset and one record lifecycle.
Install the Community package for the core workflow. Pro preview features are marked explicitly throughout this page.