ExpandableDataTable

ExpandableDataTable is a Flutter library for dealing with displaying and editing data in tabular view.

Features

Row sorting
Flexible column sizes
Expandable rows
Row pagination
Editable rows
Customizable edit dialogs
Customizable pagination widget
Customizable expansion content
Styling rows and header columns

ExpandableDataTable Parameters:

Name	Description
headers	Header list of data columns
rows	List of the data rows
visibleColumnCount	Number of columns to show in the headers
multipleExpansion	Flag indicating that multiple expansions are enabled for rows
isEditable	Flag indicating whether the rows are editable
onRowChanged	The callback that is called when a row is changed with edit dialog
onPageChanged	The callback that is called when the page changed with pagination widget
renderEditDialog	Render function that builds a custom edit dialog widget
renderCustomPagination	Render function that builds a custom pagination widget
renderExpansionContent	Render function that builds custom expansion container for all rows

ExpandableThemeData Parameters:

Name	Description
headerTextStyle	Text style of header row
rowTextStyle	Text style of all rows
contentPadding	Padding for all header and data rows
headerTextMaxLines	Maximum number of lines for header text to span
rowTextMaxLines	Maximum number of lines for row text to span
rowTextOverflow	Visual overflow of the row's cell text
expandedTextStyle	Text style of expansion content
headerColor	Background color of header row
headerSortIconColor	Color of the header sort arrow icon
headerHeight	Height of the header widget
expandedBorderColor	Expansion border color
rowColor	Background color of rows
evenRowColor	Background color of the even indexed rows
oddRowColor	Background color of the odd indexed rows
rowBorder	Border style of all rows
editIcon	Icon image showing editing feature
expansionIcon	Icon image expanding expansion content
paginationSize	Size of the default pagination widget
paginationTextStyle	TextStyle of the page numbers for default pagination widget
paginationSelectedTextColor	Color of the selected cell's page number for default pagination widget
paginationUnselectedTextColor	Color of the unselected cells' page number for default pagination widget
paginationSelectedFillColor	Background fill color of the selected cell for default pagination widget
paginationBorderColor	Border color for default pagination widget
paginationBorderRadius	Border radius value for default pagination widget
paginationBorderWidth	Border width value for default pagination widget

Usage

To use this package, add expandable_datatable as a dependency in your pubspec.yaml file.
Import the package

import ‘package:expandable_datatable/expandable_datatable.dart’;

Create data to use in the data table

Create the list of the headers to be used in data table with types. Header list should be in a prioritized order, all columns have a flex value that all cells inside that column will be used.

  List<ExpandableColumn<dynamic>> headers = [
    ExpandableColumn<int>(columnTitle: "ID", columnFlex: 1),
    ExpandableColumn<String>(columnTitle: "First name", columnFlex: 2),
    ExpandableColumn<String>(columnTitle: "Last name", columnFlex: 2),
    ExpandableColumn<String>(columnTitle: "Maiden name", columnFlex: 2),
    ExpandableColumn<int>(columnTitle: "Age", columnFlex: 1),
    ExpandableColumn<String>(columnTitle: "Gender", columnFlex: 2),
    ExpandableColumn<String>(columnTitle: "Email", columnFlex: 4),
  ];

Create the list of the rows to be used in data table. All row list elements must contain all columns for lists.

  List<ExpandableRow> rows = userList.map<ExpandableRow>((e) {
    return ExpandableRow(cells: [
      ExpandableCell<int>(columnTitle: "ID", value: e.id),
      ExpandableCell<String>(columnTitle: "First name", value: e.firstName),
      ExpandableCell<String>(columnTitle: "Last name", value: e.lastName),
      ExpandableCell<String>(columnTitle: "Maiden name", value: e.maidenName),
      ExpandableCell<int>(columnTitle: "Age", value: e.age),
      ExpandableCell<String>(columnTitle: "Gender", value: e.gender),
      ExpandableCell<String>(columnTitle: "Email", value: e.email),
    ]);
  }).toList();

Code

  void createDataSource() {...}

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("Expandable Datatable Example"),
      ),
      body: ExpandableTheme(
        data: ExpandableThemeData(
          context,
          rowBorder: const BorderSide(color: Colors.amber),
          expandedBorderColor: Colors.transparent,
          paginationSize: 48,
        ),
        child: ExpandableDataTable(
          rows: rows,
          headers: headers,
          visibleColumnCount: 4,
        ),
      ),
    );
  }