FdcMemoColumn<T> class

Grid column specialized for long or multiline text fields.

It keeps normal dataset binding while providing memo-oriented cell editing and display behavior.

Inheritance

Constructors

FdcMemoColumn({required String fieldName, String? id, String? groupId, String? label, String? hint, bool visible = true, bool exportable = true, bool enabled = true, bool readOnly = false, int? focusOrder, bool tabStop = true, double? width, double minWidth = 0, double maxWidth = 0, FdcGridColumnAutoSizeMode autoSizeMode = FdcGridColumnAutoSizeMode.none, bool allowSort = true, FdcColumnFilterConfig? filterConfig, bool allowResize = true, FdcGridHorizontalAlignment? horizontalAlignment, bool showIndicator = true, FdcColumnValueChanging<T>? onValueChanging, FdcColumnValueChanged<T>? onValueChanged, FdcGridCellStyle? cellStyle, FdcGridColumnPin pin = FdcGridColumnPin.none, FdcColumnSummary summary = const FdcColumnSummary(), FdcGridMenuBuilder? menuBuilder, bool showCounter = false, FdcCounterStyle counterStyle = const FdcCounterStyle()})
Creates a FdcMemoColumn.
const

Properties

allowResize → bool
Whether allow resize.
finalinherited
allowSort → bool
Whether allow sort.
finalinherited
autoSizeMode → FdcGridColumnAutoSizeMode
Automatic width behavior used when the grid viewport changes size.
finalinherited
cellStyle → FdcGridCellStyle?
Optional visual overrides applied to body cells in this column.
finalinherited
counterStyle → FdcCounterStyle
Optional text style used by the character counter.
finalinherited
dataType → FdcDataType
Dataset value type represented by this column.
no setterinherited
effectiveEditor → FdcEditorType
Built-in editor mode used when this column enters edit state.
no setteroverride
enabled → bool
Enables grid-managed filtering for this column.
finalinherited
exportable → bool
Whether this field-bound column participates in grid-driven exports.
finalinherited
fieldName → String
Dataset field name associated with this object.
finalinherited
filterConfig → FdcColumnFilterConfig?
Optional per-column header filter configuration.
finalinherited
filterEnabled → bool
Whether grid-managed filtering is enabled for this column.
no setterinherited
focusOrder → int?
Optional explicit keyboard focus order among focusable grid columns.
finalinherited
groupId → String?
Optional id of the visual column group this column belongs to.
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
hint → String?
Optional tooltip or contextual hint associated with this column.
finalinherited
horizontalAlignment → FdcGridHorizontalAlignment?
Optional horizontal alignment for the entire column.
finalinherited
id → String?
Stable developer-defined column identity.
finalinherited
isDataBound → bool
Whether this column is backed by a dataset field.
no setterinherited
isEffectivelyReadOnly → bool
True when grid editing is disabled by configuration or column semantics.
no setterinherited
isInherentlyReadOnly → bool
True when the column type itself cannot support grid editing.
no setterinherited
label → String?
Display label shown to the user.
finalinherited
lookupIcon → IconData
Icon used by the focused-cell lookup button.
finalinherited
lookupShortcut → FdcKeyboardShortcut?
Keyboard shortcut that invokes onLookup for the focused cell.
finalinherited
maxWidth → double
Maximum width allowed during layout and resize; zero means no explicit maximum.
finalinherited
Optional body-cell context menu override for this column.
finalinherited
minWidth → double
Minimum width allowed during layout and interactive resize.
finalinherited
onLookup → FdcGridLookup<T>?
Optional asynchronous lookup invoked by the focused-cell lookup button.
finalinherited
onValueChanged → FdcColumnValueChanged<T>?
Optional column-level notification invoked after a value was successfully written for this column.
finalinherited
onValueChanging → FdcColumnValueChanging<T>?
Optional column-level interceptor invoked before values are written into the dataset. Useful for cell-level validation and transformations such as barcode-to-article-code lookup.
finalinherited
pin → FdcGridColumnPin
Initial horizontal pinning mode for this column.
finalinherited
readOnly → bool
Prevents editing through this column while keeping the field visible.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
showCounter → bool
Shows a character counter in the text editor.
finalinherited
showIndicator → bool
Controls whether this column renders the active-cell indicator overlay.
finalinherited
summary → FdcColumnSummary
Per-column summary row behavior and style.
finalinherited
tabStop → bool
Whether Tab navigation may stop on this column.
finalinherited
visible → bool
Whether the column participates in the current grid layout.
finalinherited
width → double?
Optional initial column width; grid defaults are used when omitted.
finalinherited

Methods

applyValueChanged({required FdcDataSet dataSet, required FdcGridRowContext row, required int rowIndex, required int? columnIndex, required String fieldName, required Object? oldValue, required Object? value}) → void
Invokes onValueChanged using this column's concrete generic value type.
inherited
applyValueChanging({required FdcDataSet dataSet, required FdcGridRowContext row, required int rowIndex, required int columnIndex, required String fieldName, required Object? oldValue, required Object? newValue}) → FdcFieldValueChangeResult<T>?
Invokes onValueChanging using this column's concrete generic value type.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited
validateBinding(FdcDataSet dataSet) → void
Validates this column's dataset field binding for the grid runtime.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited