FdcFieldContext<T> class

Runtime field context passed to FdcCustomColumn.cellBuilder.

The context is intentionally field-bound: value and setValue operate on the column's own FdcCustomColumn.fieldName, while valueOf, tryValueOf, and setValueOf allow a custom widget to inspect or update other fields on the same row. Writes are routed through the grid/dataset edit pipeline, so validators, edit buffers, lifecycle events and field-change notifications keep the same behavior as built-in columns.

Constructors

FdcFieldContext({required FdcCustomColumn<T> column, required int rowIndex, required int columnIndex, required T? value, required bool fieldExists(String fieldName), required Object? fieldValueResolver(String fieldName), required bool fieldValueWriter(String fieldName, Object? value), required FdcFieldValueFormatter fieldValueFormatter})

Creates a FdcFieldContext.

const

Properties

column → FdcCustomColumn<T>

Custom column that owns this cell.

final

columnIndex → int

Visual column index in the current grid view.

final

hashCode → int

The hash code for this object.

no setter, inherited

rowIndex → int

Visual row index in the current grid view.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

value → T?

Current field value for column.fieldName.

final

Methods

formatValue([T? value]) → String

Formats this column's current value using the grid formatter.

formatValueOf(String fieldName, [Object? value]) → String

Formats another field value from the same row using its dataset schema.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

setValue(T? value) → bool

Writes this column's field value through the normal grid/dataset pipeline.

setValueOf<V>(String fieldName, V? value) → bool

Writes another field value on the same visual row through the normal grid/dataset pipeline.

toString() → String

A string representation of this object.

inherited

tryValueOf<V>(String fieldName) → V?

Reads another field value from the same visual row when it is assignable to V.

valueOf<V>(String fieldName) → V?

Reads another field value from the same visual row.

Operators

operator ==(Object other) → bool

The equality operator.

inherited