JavaScript Data Grid NestedHeaders

Description

The plugin allows to create a nested header structure, using the HTML's colspan attribute.

To make any header wider (covering multiple table columns), it's corresponding configuration array element should be provided as an object with label and colspan properties. The label property defines the header's label, while the colspan property defines a number of columns that the header should cover.

Note that the plugin supports a nested structure, which means, any header cannot be wider than it's "parent". In other words, headers cannot overlap each other.

Example

const container = document.getElementById('example');
const hot = new Handsontable(container, {
  data: getData(),
  nestedHeaders: [
    ['A', {label: 'B', colspan: 8}, 'C'],
    ['D', {label: 'E', colspan: 4}, {label: 'F', colspan: 4}, 'G'],
    ['H', {label: 'I', colspan: 2}, {label: 'J', colspan: 2}, {label: 'K', colspan: 2}, {label: 'L', colspan: 2}, 'M'],
    ['N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W']
 ],

Options

nestedHeaders

Source code (opens new window)

nestedHeaders.nestedHeaders : boolean | Array<Array>

The nestedHeaders option configures the NestedHeaders plugin.

You can set the nestedHeaders option to one of the following:

Setting Description
false (default) Disable the NestedHeaders plugin
true - Enable the NestedHeaders plugin
- Don't configure any nested headers
Array of arrays - Enable the NestedHeaders plugin
- Configure headers that are nested on Handsontable's initialization

If you set the nestedHeaders option to an array of arrays, each array configures one set of nested headers.

Each array element configures one header, and can be one of the following:

Array element Description
A string The header's label
An object Properties:
label (string): the header's label
colspan (integer): the column width

Read more:

Default: undefined
Example

nestedHeaders: [
  ['A', {label: 'B', colspan: 8}, 'C'],
  ['D', {label: 'E', colspan: 4}, {label: 'F', colspan: 4}, 'G'],
  ['H', 'I', 'J', 'K', 'L', 'M', 'N', 'R', 'S', 'T']
],

Members

detectedOverlappedHeaders

Source code (opens new window)

nestedHeaders.detectedOverlappedHeaders : boolean

The flag which determines that the nested header settings contains overlapping headers configuration.

Methods

destroy

Source code (opens new window)

nestedHeaders.destroy()

Destroys the plugin instance.

disablePlugin

Source code (opens new window)

nestedHeaders.disablePlugin()

Disables the plugin functionality for this Handsontable instance.

enablePlugin

Source code (opens new window)

nestedHeaders.enablePlugin()

Enables the plugin functionality for this Handsontable instance.

isEnabled

Source code (opens new window)

nestedHeaders.isEnabled() ⇒ boolean

Check if plugin is enabled.

updatePlugin

Source code (opens new window)

nestedHeaders.updatePlugin()

Updates the plugin's state.

This method is executed when updateSettings() is invoked with any of the following configuration options:

Last update: Mar 6, 2024