RowSelectionManager class Null safety

Processes the row selection operation in SfDataGrid.

You can override the available methods in this class to customize the selection operation in DataGrid and set the instance to the SfDataGrid.selectionManager.

The following code shows how to change the Enter key behavior by overriding the handleKeyEvent() method in RowSelectionManager,

final CustomSelectionManager _customSelectionManager = CustomSelectionManager();
@override
Widget build(BuildContext context){
  return MaterialApp(
      home: Scaffold(
          body: SfDataGrid(
            source: _employeeDataSource,
            columns: [
                GridColumn(columnName: 'id', label = Text('ID')),
                GridColumn(columnName: 'name', label = Text('Name')),
                GridColumn(columnName: 'designation', label = Text('Designation')),
                GridColumn(columnName: 'salary', label = Text('Salary')),
            ],
            selectionMode: SelectionMode.multiple,
            navigationMode: GridNavigationMode.cell,
            selectionManager: _customSelectionManager,
          ))
  );
}
class CustomSelectionManager extends RowSelectionManager{
    @override
    void handleKeyEvent(RawKeyEvent keyEvent) {
        if(keyEvent.logicalKey == LogicalKeyboardKey.enter){
            //apply your logic
            return;
        }
        super.handleKeyEvent(keyEvent);
    }
}
Inheritance

Constructors

RowSelectionManager()
Creates the RowSelectionManager for SfDataGrid widget.

Properties

hashCode int
The hash code for this object. [...]
read-only, inherited
hasListeners bool
Whether any listeners are currently registered. [...]
@protected, read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes. [...]
inherited
dispose() → void
Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener and removeListener will throw after the object is disposed). [...]
@mustCallSuper, inherited
handleDataGridSourceChanges() → void
Called when the selection is programmatically changed using SfDataGrid.controller.
override
handleKeyEvent(RawKeyEvent keyEvent) → void
Processes the selection operation when SfDataGrid receives raw keyboard event.
override
handleTap(RowColumnIndex rowColumnIndex) → void
Processes the selection operation when tap a cell.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
notifyListeners() → void
Call all the registered listeners. [...]
onGridSelectionModeChanged() → void
Called when the SfDataGrid.selectionMode is changed at run time.
override
onSelectedIndexChanged() → void
Called when the selectedIndex property in SfDataGrid.controller is changed.
override
onSelectedRowChanged() → void
Called when the selectedRow property in SfDataGrid.controller is changed.
override
onSelectedRowsChanged() → void
Called when the selectedRows property in SfDataGrid.controller is changed.
override
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes. [...]
inherited
toString() String
A string representation of this object. [...]
inherited

Operators

operator ==(Object other) bool
The equality operator. [...]
inherited