Column | API Reference | ArcGIS Maps SDK for JavaScript 4.30

The Column class works with the FeatureTable and provides much of the underlying logic for column behavior. Column and its subclasses, ie. FieldColumn, GroupColumn, ActionColumn, AttachmentsColumn, and RelationshipColumn, contain information about the current table state after it has been rendered. This includes the column's header, cell content, and any associated menu items.

This class should be used for observing potential changes. Any configuration and changes to the columns should be handled via the TableTemplate and the ColumnTemplate class.

See also

Property Overview

Any properties can be set, retrieved or listened to. See the Working with Properties topic.

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Type	Summary	Class
Boolean	Indicates if the column width will automatically adjust to account for large content.	Column
String	The name of the class.	Accessor
String\|null	Controls the sort order of the column.	Column
String	The sanitized label string safe for display in the header cell.	Column
String	The unique field name as defined by the data source.	Column
Number	Controls the flex-grow property for the column.	Column
FormatFunction	Custom function for rendering cell content that is called when the column is rendered in the table.	Column
Boolean	Indicates if the the column is frozen in place at the beginning of the table.	Column
Boolean	Indicates if the column is frozen in place at the end of the table.	Column
String	The string value indicating the icon displayed in the header cell of the column.	Column
Number	Indicates the initial sort priority of the column when first rendered.	Column
Boolean	Indicates whether the column is in an invalid state.	Column
String	The default label displayed in the column header cell.	Column
HTMLElement	The element representing the field column's menu.	Column
ColumnTableMenuConfig	Configuration options for the column's menu.	Column
Boolean	Indicates whether the Column's menu is currently open.	Column
Boolean	Indicates whether the Column's menu will be displayed.	Column
Boolean	Indicates whether the column is resizable.	Column
Boolean	Indicates whether the column is sortable.	Column
String	Aligns the columns cell content horizontally.	Column
Boolean	Indicates cell content should be wrapped and displayed on multiple lines within the cell.	Column
String	The storage IANA time zone of the column.	Column
VisibleElements	The visible elements of the column's associated FeatureTable.	Column
Number\|String	Width of the column in pixels.	Column

Property Details

autoWidth Property autoWidth Boolean

Indicates if the column width will automatically adjust to account for large content. The column ignores the current width property when autoWidth is true.

Default Value:false

declaredClass Inherited Property declaredClass Stringreadonly Inherited from Accessor

The name of the class. The declared class name is formatted as esri.folder.className.

direction Property direction String |null

Controls the sort order of the column. This property will only be honored on one column in the FeatureTable widget. If direction is specified on more than one column in the same FeatureTable, it will only be honored on the column with the highest index.

This is used in combination with the initialSortPriority and FeatureTable.multiSortEnabled properties to set sorting functionality for multiple columns.

Possible Value	Description
asc	Sorts the column in ascending order.
desc	Sorts the column in descending order.
null	No sort is applied to the column.

Possible Values:"asc" |"desc"

See also

effectiveLabel Property effectiveLabel String

The sanitized label string safe for display in the header cell. Defaults to using fieldName if a label is not defined on the column.

fieldName Property fieldName Stringreadonly

The unique field name as defined by the data source.

flexGrow Property flexGrow Number

Controls the flex-grow property for the column. When set to 0, cell width is fixed.

Default Value:1

formatFunction Property formatFunction FormatFunctionreadonly

Custom function for rendering cell content that is called when the column is rendered in the table. The function should return the formatted content to display within a table's cell. This can be a string, number, an HTML element, or equivalent node type (e.g. a Calcite component). If the content is an HTML element, it is appended to the root element. If the content is a string or number, it is set as the innerHTML of the root element. If the content is null, the root element is cleared. If the content is undefined, the root element is not modified. This property is useful when you want to customize the cell content. For example, you can use this property to create a custom cell renderer that displays a progress bar in the cell. The progress bar can be used to show the progress of a task.

Example

// The following example demonstrates how to use the formatFunction property to create a custom cell renderer that displays a progress bar in the cell. The progress bar can be used to show the progress of a task.
column.formatFunction = (column, feature, index, value )=> {
  const progress = document.createElement("progress");
  progress.max = 100;
  progress.value = value;
  return progress;
};

frozen Property frozen Booleanreadonly

Indicates if the the column is frozen in place at the beginning of the table. Column must be first in the FeatureTable's column's, or next to other frozen columns.

Default Value:false

frozenToEnd Property frozenToEnd Booleanreadonly

Indicates if the column is frozen in place at the end of the table. Column must be last in the FeatureTable's column's, or next to other columns with frozenToEnd set to true.

Default Value:false

icon Property icon String

The string value indicating the icon displayed in the header cell of the column.

See also

Calcite Icon Search

initialSortPriority Property initialSortPriority Numberreadonly

Indicates the initial sort priority of the column when first rendered.

invalid Property invalid Boolean

Indicates whether the column is in an invalid state.

Default Value:undefined

label Property label String

The default label displayed in the column header cell.

menu Property menu HTMLElementreadonly

The element representing the field column's menu.

menuConfig Property menuConfig ColumnTableMenuConfigreadonly

Configuration options for the column's menu.

FeatureTable.tableTemplate.

menuIsOpen Property menuIsOpen Booleanreadonly

Indicates whether the Column's menu is currently open.

menuIsVisible Property menuIsVisible Booleanreadonly

Indicates whether the Column's menu will be displayed.

resizable Property resizable Booleanreadonly

Indicates whether the column is resizable.

Default Value:true

sortable Property sortable Boolean

Indicates whether the column is sortable.

Default Value:false

textAlign Property textAlign String

Aligns the columns cell content horizontally.

Possible Values:"start" |"center" |"end"

Default Value:"start"

textWrap Property textWrap Boolean

Indicates cell content should be wrapped and displayed on multiple lines within the cell. Warning: this causes rows to expand when tall content is visible in the viewport. Scrolling tall cells into the viewport may cause the table to visually jump depending on the height of the expanding rows.

Default Value:false

timeZone Property timeZone Stringreadonly

The storage IANA time zone of the column.

See also

visibleElements Property visibleElements VisibleElements

The visible elements of the column's associated FeatureTable.

width Property width Number |String

Width of the column in pixels. If providing value as a string, the string must include "px" suffix. This value is only honored when there are enough columns to fill the viewport, or flexGrow has been set to 0.

Default Value:200

Method Overview

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Return Type	Summary	Class
	Adds one or more handles which are to be tied to the lifecycle of the object.	Accessor
	Convenience method for closing the column menu.	Column
Boolean	Emits an event on the instance.	Column
Boolean	Indicates whether there is an event listener on the instance that matches the provided event name.	Column
Boolean	Returns true if a named group of handles exist.	Accessor
Object	Registers an event handler on the instance.	Column
	Convenience method for opening the column menu.	Column
	Removes a group of handles owned by the object.	Accessor
	Convenience method for sorting the current column.	Column

Method Details

addHandles Inherited Method addHandles(handleOrHandles, groupKey) Inherited from Accessor

Adds one or more handles which are to be tied to the lifecycle of the object. The handles will be removed when the object is destroyed.

// Manually manage handles
const handle = reactiveUtils.when(
  () => !view.updating,
  () => {
    wkidSelect.disabled = false;
  },
  { once: true }
);

this.addHandles(handle);

// Destroy the object
this.destroy();

Parameters

handleOrHandles WatchHandle|WatchHandle []

Handles marked for removal once the object is destroyed.

groupKey *

optional

Key identifying the group to which the handles should be added. All the handles in the group can later be removed with Accessor.removeHandles(). If no key is provided the handles are added to a default group.

closeMenu Method closeMenu()

Convenience method for closing the column menu.

See also

emit Method emit(type, event){Boolean}

Emits an event on the instance. This method should only be used when creating subclasses of this class.

Parameters

type String

The name of the event.

event Object

optional

The event payload.

Returns

Type	Description
Boolean	`true` if a listener was notified

hasEventListener Method hasEventListener(type){Boolean}

Indicates whether there is an event listener on the instance that matches the provided event name.

Parameter

type String

The name of the event.

Returns

Type	Description
Boolean	Returns true if the class supports the input event.

hasHandles Inherited Method hasHandles(groupKey){Boolean} Inherited from Accessor

Returns true if a named group of handles exist.

Parameter

groupKey *

optional

A group key.

Returns

Type	Description
Boolean	Returns `true` if a named group of handles exist.

Example

// Remove a named group of handles if they exist.
if (obj.hasHandles("watch-view-updates")) {
  obj.removeHandles("watch-view-updates");
}

on Method on(type, listener){Object}

Registers an event handler on the instance. Call this method to hook an event with a listener.

Parameters

type String|String []

An event or an array of events to listen for.

listener Function

The function to call when the event fires.

Returns

Type Description

Object

Returns an event handler with a remove() method that should be called to stop listening for the event(s).

Property	Type	Description
remove	Function	When called, removes the listener from the event.

Example

view.on("click", function(event){
  // event is the event handle returned after the event fires.
  console.log(event.mapPoint);
});

openMenu Method openMenu()

Convenience method for opening the column menu. This has no effect if the menu is not visible or has no menu items. It follows the direction pattern of ascending, to descending, then no sort order.

See also

removeHandles Inherited Method removeHandles(groupKey) Inherited from Accessor

Removes a group of handles owned by the object.

Parameter

groupKey *

optional

A group key or an array or collection of group keys to remove.

Example

obj.removeHandles(); // removes handles from default group

obj.removeHandles("handle-group");
obj.removeHandles("other-handle-group");

sort Method sort()

Convenience method for sorting the current column. It has no effect if column sorting is disabled.

See also

initialSortPriority

Type Definitions

ColumnTableMenuConfig Type Definition ColumnTableMenuConfig

Properties: disabled Boolean

optional
Indicates whether the menu is disabled. Default value is false.

items TableMenuItemConfig []

The menu items within the table menu.

open Boolean

optional
Indicates whether the menu is open. Default value is false.

icon String

optional
The string value indicating the icon displayed in the header cell of the column.

selectionMode String

optional
The selection mode of the menu items.

Possible Values:"none"|"single"|"multiple"

FormatFunction Type Definition FormatFunction(params){String |Number |HTMLElement |null}

Custom function for rendering cell content. Accepts a string, number, an HTML element or equivalent node type (e.g. a Calcite component).

Parameters

Specification

params Object

An object containing information about the associated row and feature.

Specification

column Column

A reference to this specific Column.

feature Graphic

A reference to the feature represented by the associated row.

index Number

Index of the associated row being rendered.

value String|Number|null

Current projected value of the cell.

Returns

Type	Description
String \| Number \| HTMLElement \| null	Formatted content to be displayed in the cell.