How to Get the Entire Row Details in Flutter DataGrid?
In this article, you'll learn how to retrieve complete row information when tapping cells in a Flutter DataGrid
STEP 1: Create a Data Source Class
First, create a data source class by extending DataGridSource to map your data to the SfDataGrid widget.
class EmployeeDataSource extends DataGridSource {
EmployeeDataSource(List<Employee> employees) {
buildDataGridRow(employees);
}
void buildDataGridRow(List<Employee> employeeData) {
dataGridRow = employeeData.map<DataGridRow>((employee) {
return DataGridRow(cells: [
DataGridCell<int>(columnName: 'id', value: employee.id),
DataGridCell<String>(columnName: 'name', value: employee.name),
DataGridCell<String>(
columnName: 'designation', value: employee.designation),
DataGridCell<int>(columnName: 'salary', value: employee.salary),
]);
}).toList();
}
List<DataGridRow> dataGridRow = <DataGridRow>[];
@override
List<DataGridRow> get rows => dataGridRow.isEmpty ? [] : dataGridRow;
@override
DataGridRowAdapter? buildRow(DataGridRow row) {
return DataGridRowAdapter(
cells: row.getCells().map<Widget>((dataGridCell) {
return Container(
alignment: Alignment.center,
padding: const EdgeInsets.symmetric(horizontal: 8.0),
child: SelectableText(dataGridCell.value.toString()),
);
}).toList());
}
}
STEP 2: Initialize the SfDataGrid Widget
Next, initialize the SfDataGrid widget with all required properties. When a row is tapped, you can access the row index through the onCellTap callback and fetch the corresponding row data from DataGridSource.effectiveRows. Here, the respective row details will be shown in the AlertDialog with a onCellTap.
List<Employee> _employees = <Employee>[];
late EmployeeDataSource _employeeDataSource;
@override
void initState() {
super.initState();
_employees = getEmployeeData();
_employeeDataSource = EmployeeDataSource(_employees);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Flutter SfDataGrid'),
),
body: SfDataGrid(
source: _employeeDataSource,
columns: getColumns,
columnWidthMode: ColumnWidthMode.fill,
allowSorting: true,
onCellTap: ((details) {
if (details.rowColumnIndex.rowIndex != 0) {
int selectedRowIndex = details.rowColumnIndex.rowIndex - 1;
var row =
_employeeDataSource.effectiveRows.elementAt(selectedRowIndex);
showDialog(
context: context,
builder: (context) => AlertDialog(
shape: const RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(32.0))),
content: SizedBox(
height: 300,
width: 300,
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Row(children: [
const Text('Employee ID'),
const Padding(
padding:
EdgeInsets.symmetric(horizontal: 25)),
const Text(':'),
const Padding(
padding:
EdgeInsets.symmetric(horizontal: 10)),
Text(row.getCells()[0].value.toString()),
]),
Row(children: [
const Text('Employee Name'),
const Padding(
padding:
EdgeInsets.symmetric(horizontal: 10)),
const Text(':'),
const Padding(
padding:
EdgeInsets.symmetric(horizontal: 10)),
Text(row.getCells()[1].value.toString()),
]),
Row(children: [
const Text('Designation'),
const Padding(
padding:
EdgeInsets.symmetric(horizontal: 25)),
const Text(':'),
const Padding(
padding:
EdgeInsets.symmetric(horizontal: 10)),
Text(row.getCells()[2].value.toString()),
]),
Row(children: [
const Text('Salary'),
const Padding(
padding:
EdgeInsets.symmetric(horizontal: 45)),
const Text(':'),
const Padding(
padding:
EdgeInsets.symmetric(horizontal: 10)),
Text(row.getCells()[3].value.toString()),
]),
SizedBox(
width: 300,
child: ElevatedButton(
onPressed: () {
Navigator.pop(context);
},
child: const Text("OK")),
)
]),
)));
}
}),
),
);
}
Conclusion
I hope you enjoyed learning about how to get the entire row details in Flutter DataGrid.
You can refer to our Flutter SfDataGrid 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 SfDataGrid demo to understand how to create and manipulate data.
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