How to Get the Cell Value when Tapping the Cells in Flutter DataGrid?
The Syncfusion Flutter DataTable widget allows you to handle the interactions for customization. You can refer to this documentation, to know more about the interactions callbacks supported in DataGrid. The onCellTap callback can be used to retrieve the value of a cell when it is tapped in Flutter DataGrid .
Initialize the Flutter DataGrid widget with all the required properties. The information about the tapped cell (i.e., rowColumnIndex, column, localPosition, and globalPosition) can be accessed using the DataGridCellTapDetails, which is passed as a parameter in onCellTap callback.
You can get the tapped cell value from the effectiveRows collection by using the RowColumnIndex.rowIndex property.
late EmployeeDataGridSource _employeeDataGridSource;
List<Employee> _employees = <Employee>[];
@override
void initState() {
super.initState();
_employees = getEmployeeData();
_employeeDataGridSource = EmployeeDataGridSource(employees: _employees);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Syncfusion Flutter DataGrid Demo',
overflow: TextOverflow.ellipsis)),
body: SfDataGrid(
source: _employeeDataGridSource,
onCellTap: (DataGridCellTapDetails details) {
showDialog(
context: context,
builder: (BuildContext context) => AlertDialog(
title: const Text('Tapped Content'),
actions: <Widget>[
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('OK'))
],
content: Text(_employeeDataGridSource
.effectiveRows[details.rowColumnIndex.rowIndex - 1]
.getCells()[details.rowColumnIndex.columnIndex]
.value
.toString())));
},
columns: <GridColumn>[
GridColumn(
columnName: 'ID',
label: Container(
padding: const EdgeInsets.all(16.0),
alignment: Alignment.center,
child: const Text(
'ID',
))),
GridColumn(
columnName: 'Name',
label: Container(
padding: const EdgeInsets.all(8.0),
alignment: Alignment.center,
child: const Text('Name'))),
GridColumn(
columnName: 'Designation',
label: Container(
padding: const EdgeInsets.all(8.0),
alignment: Alignment.center,
child: const Text(
'Designation',
overflow: TextOverflow.ellipsis,
))),
GridColumn(
columnName: 'Salary',
label: Container(
padding: const EdgeInsets.all(8.0),
alignment: Alignment.center,
child: const Text('Salary'))),
]));
}
You can download this example on GitHub.
Conclusion
I hope you enjoyed learning about how to get the cell value when tapping the cells in Flutter DataGrid.
You can refer to our Flutter DataGrid feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our Flutter DataGrid example to understand how to create and manipulate data.
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