How to Get Sorted Column Details in Flutter DataTable?

In this article, we will show how to get sorted column details in Flutter DataTable.

Initialize the SfDataGrid widget with the necessary properties. SfDataGrid provides the following callbacks for sorting: The onColumnSortChanging callback is triggered when a column is being sorted, while the onColumnSortChanged callback is triggered after a column has been sorted. Using onColumnSortChanged, you can retrieve the sorted column details through the newSortedColumn parameter, which includes the column name and sort direction.

@override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Syncfusion Flutter DataGrid')),
      body: SfDataGrid(
        source: employeeDataSource,
        columnWidthMode: ColumnWidthMode.fill,
        allowSorting: true,
        onColumnSortChanged: (newSortedColumn, oldSortedColumn) {
          if (newSortedColumn != null) {
            showDialog(
              context: context,
              builder: (BuildContext context) {
                return AlertDialog(
                  title: Text("Sorted Column"),
                  content: Text(
                    "Column: ${newSortedColumn.name}\n"
                    "Sort Direction: ${newSortedColumn.sortDirection}",
                  ),
                  actions: [
                    TextButton(
                      onPressed: () {
                        Navigator.of(context).pop();
                      },
                      child: Text("OK"),
                    ),
                  ],
                );
              },
            );
          }
        },
        columns: <GridColumn>[
          GridColumn(
            columnName: 'id',
            label: Container(
              padding: EdgeInsets.all(16.0),
              alignment: Alignment.center,
              child: Text('ID'),
            ),
          ),
          GridColumn(
            columnName: 'name',
            label: Container(
              padding: EdgeInsets.all(8.0),
              alignment: Alignment.center,
              child: Text('Name'),
            ),
          ),
          GridColumn(
            columnName: 'designation',
            label: Container(
              padding: EdgeInsets.all(8.0),
              alignment: Alignment.center,
              child: Text('Designation', overflow: TextOverflow.ellipsis),
            ),
          ),
          GridColumn(
            columnName: 'salary',
            label: Container(
              padding: EdgeInsets.all(8.0),
              alignment: Alignment.center,
              child: Text('Salary'),
            ),
          ),
        ],
      ),
    );
  }

View the GitHub sample here.

Conclusion
I hope you enjoyed learning how to get sorted column details in Flutter DataTable.
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 Flatter DataGrid example to understand how to create and manipulate data.
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