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word.listcollection.yml
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word.listcollection.yml
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### YamlMime:TSType
name: Word.ListCollection
uid: 'word!Word.ListCollection:class'
package: word!
fullName: Word.ListCollection
summary: 'Contains a collection of [Word.List](xref:word!Word.List:class) objects.'
remarks: >-
\[ [API set: WordApi 1.3](/javascript/api/requirement-sets/word/word-api-requirement-sets) \]
#### Examples
```TypeScript
// Link to full sample:
https://raw.githubusercontent.com/OfficeDev/office-js-snippets/prod/samples/word/20-lists/organize-list.yaml
// Gets information about the first list in the document.
await Word.run(async (context) => {
const lists: Word.ListCollection = context.document.body.lists;
lists.load("items");
await context.sync();
if (lists.items.length === 0) {
console.warn("There are no lists in this document.");
return;
}
// Get the first list.
const list: Word.List = lists.getFirst();
list.load("levelTypes,levelExistences");
await context.sync();
const levelTypes = list.levelTypes;
console.log("Level types of the first list:");
for (let i = 0; i < levelTypes.length; i++) {
console.log(`- Level ${i + 1} (index ${i}): ${levelTypes[i]}`);
}
const levelExistences = list.levelExistences;
console.log("Level existences of the first list:");
for (let i = 0; i < levelExistences.length; i++) {
console.log(`- Level ${i + 1} (index ${i}): ${levelExistences[i]}`);
}
});
```
isPreview: false
isDeprecated: false
type: class
properties:
- name: context
uid: 'word!Word.ListCollection#context:member'
package: word!
fullName: context
summary: >-
The request context associated with the object. This connects the add-in's process to the Office host
application's process.
remarks: ''
isPreview: false
isDeprecated: false
syntax:
content: 'context: RequestContext;'
return:
type: '<xref uid="word!Word.RequestContext:class" />'
- name: items
uid: 'word!Word.ListCollection#items:member'
package: word!
fullName: items
summary: Gets the loaded child items in this collection.
remarks: ''
isPreview: false
isDeprecated: false
syntax:
content: 'readonly items: Word.List[];'
return:
type: '<xref uid="word!Word.List:class" />[]'
methods:
- name: getById(id)
uid: 'word!Word.ListCollection#getById:member(1)'
package: word!
fullName: getById(id)
summary: >-
Gets a list by its identifier. Throws an `ItemNotFound` error if there isn't a list with the identifier in this
collection.
remarks: '\[ [API set: WordApi 1.3](/javascript/api/requirement-sets/word/word-api-requirement-sets) \]'
isPreview: false
isDeprecated: false
syntax:
content: 'getById(id: number): Word.List;'
parameters:
- id: id
description: Required. A list identifier.
type: number
return:
type: '<xref uid="word!Word.List:class" />'
description: ''
- name: getByIdOrNullObject(id)
uid: 'word!Word.ListCollection#getByIdOrNullObject:member(1)'
package: word!
fullName: getByIdOrNullObject(id)
summary: >-
Gets a list by its identifier. If there isn't a list with the identifier in this collection, then this method will
return an object with its `isNullObject` property set to `true`<!-- -->. For further information, see
[*OrNullObject methods and
properties](https://learn.microsoft.com/office/dev/add-ins/develop/application-specific-api-model#ornullobject-methods-and-properties)<!--
-->.
remarks: '\[ [API set: WordApi 1.3](/javascript/api/requirement-sets/word/word-api-requirement-sets) \]'
isPreview: false
isDeprecated: false
syntax:
content: 'getByIdOrNullObject(id: number): Word.List;'
parameters:
- id: id
description: Required. A list identifier.
type: number
return:
type: '<xref uid="word!Word.List:class" />'
description: ''
- name: getFirst()
uid: 'word!Word.ListCollection#getFirst:member(1)'
package: word!
fullName: getFirst()
summary: Gets the first list in this collection. Throws an `ItemNotFound` error if this collection is empty.
remarks: '\[ [API set: WordApi 1.3](/javascript/api/requirement-sets/word/word-api-requirement-sets) \]'
isPreview: false
isDeprecated: false
syntax:
content: 'getFirst(): Word.List;'
return:
type: '<xref uid="word!Word.List:class" />'
description: ''
- name: getFirstOrNullObject()
uid: 'word!Word.ListCollection#getFirstOrNullObject:member(1)'
package: word!
fullName: getFirstOrNullObject()
summary: >-
Gets the first list in this collection. If this collection is empty, then this method will return an object with
its `isNullObject` property set to `true`<!-- -->. For further information, see [*OrNullObject methods and
properties](https://learn.microsoft.com/office/dev/add-ins/develop/application-specific-api-model#ornullobject-methods-and-properties)<!--
-->.
remarks: '\[ [API set: WordApi 1.3](/javascript/api/requirement-sets/word/word-api-requirement-sets) \]'
isPreview: false
isDeprecated: false
syntax:
content: 'getFirstOrNullObject(): Word.List;'
return:
type: '<xref uid="word!Word.List:class" />'
description: ''
- name: getItem(id)
uid: 'word!Word.ListCollection#getItem:member(1)'
package: word!
fullName: getItem(id)
summary: Gets a list object by its ID.
remarks: '\[ [API set: WordApi 1.3](/javascript/api/requirement-sets/word/word-api-requirement-sets) \]'
isPreview: false
isDeprecated: false
syntax:
content: 'getItem(id: number): Word.List;'
parameters:
- id: id
description: The list's ID.
type: number
return:
type: '<xref uid="word!Word.List:class" />'
description: ''
- name: load(options)
uid: 'word!Word.ListCollection#load:member(1)'
package: word!
fullName: load(options)
summary: >-
Queues up a command to load the specified properties of the object. You must call `context.sync()` before reading
the properties.
remarks: ''
isPreview: false
isDeprecated: false
syntax:
content: >-
load(options?: Word.Interfaces.ListCollectionLoadOptions & Word.Interfaces.CollectionLoadOptions):
Word.ListCollection;
parameters:
- id: options
description: Provides options for which properties of the object to load.
type: >-
<xref uid="word!Word.Interfaces.ListCollectionLoadOptions:interface" /> & <xref
uid="word!Word.Interfaces.CollectionLoadOptions:interface" />
return:
type: '<xref uid="word!Word.ListCollection:class" />'
description: ''
- name: load(propertyNames)
uid: 'word!Word.ListCollection#load:member(2)'
package: word!
fullName: load(propertyNames)
summary: >-
Queues up a command to load the specified properties of the object. You must call `context.sync()` before reading
the properties.
remarks: ''
isPreview: false
isDeprecated: false
syntax:
content: 'load(propertyNames?: string | string[]): Word.ListCollection;'
parameters:
- id: propertyNames
description: A comma-delimited string or an array of strings that specify the properties to load.
type: 'string | string[]'
return:
type: '<xref uid="word!Word.ListCollection:class" />'
description: ''
- name: load(propertyNamesAndPaths)
uid: 'word!Word.ListCollection#load:member(3)'
package: word!
fullName: load(propertyNamesAndPaths)
summary: >-
Queues up a command to load the specified properties of the object. You must call `context.sync()` before reading
the properties.
remarks: ''
isPreview: false
isDeprecated: false
syntax:
content: 'load(propertyNamesAndPaths?: OfficeExtension.LoadOption): Word.ListCollection;'
parameters:
- id: propertyNamesAndPaths
description: >-
`propertyNamesAndPaths.select` is a comma-delimited string that specifies the properties to load, and
`propertyNamesAndPaths.expand` is a comma-delimited string that specifies the navigation properties to load.
type: '<xref uid="office!OfficeExtension.LoadOption:interface" />'
return:
type: '<xref uid="word!Word.ListCollection:class" />'
description: ''
- name: toJSON()
uid: 'word!Word.ListCollection#toJSON:member(1)'
package: word!
fullName: toJSON()
summary: >-
Overrides the JavaScript `toJSON()` method in order to provide more useful output when an API object is passed to
`JSON.stringify()`<!-- -->. (`JSON.stringify`<!-- -->, in turn, calls the `toJSON` method of the object that is
passed to it.) Whereas the original `Word.ListCollection` object is an API object, the `toJSON` method returns a
plain JavaScript object (typed as `Word.Interfaces.ListCollectionData`<!-- -->) that contains an "items" array
with shallow copies of any loaded properties from the collection's items.
remarks: ''
isPreview: false
isDeprecated: false
syntax:
content: 'toJSON(): Word.Interfaces.ListCollectionData;'
return:
type: '<xref uid="word!Word.Interfaces.ListCollectionData:interface" />'
description: ''
- name: track()
uid: 'word!Word.ListCollection#track:member(1)'
package: word!
fullName: track()
summary: >-
Track the object for automatic adjustment based on surrounding changes in the document. This call is a shorthand
for
[context.trackedObjects.add(thisObject)](https://learn.microsoft.com/javascript/api/office/officeextension.clientrequestcontext#office-officeextension-clientrequestcontext-trackedobjects-member)<!--
-->. If you're using this object across `.sync` calls and outside the sequential execution of a ".run" batch, and
get an "InvalidObjectPath" error when setting a property or invoking a method on the object, you need to add the
object to the tracked object collection when the object was first created. If this object is part of a collection,
you should also track the parent collection.
remarks: ''
isPreview: false
isDeprecated: false
syntax:
content: 'track(): Word.ListCollection;'
return:
type: '<xref uid="word!Word.ListCollection:class" />'
description: ''
- name: untrack()
uid: 'word!Word.ListCollection#untrack:member(1)'
package: word!
fullName: untrack()
summary: >-
Release the memory associated with this object, if it has previously been tracked. This call is shorthand for
[context.trackedObjects.remove(thisObject)](https://learn.microsoft.com/javascript/api/office/officeextension.clientrequestcontext#office-officeextension-clientrequestcontext-trackedobjects-member)<!--
-->. Having many tracked objects slows down the host application, so please remember to free any objects you add,
once you're done using them. You'll need to call `context.sync()` before the memory release takes effect.
remarks: ''
isPreview: false
isDeprecated: false
syntax:
content: 'untrack(): Word.ListCollection;'
return:
type: '<xref uid="word!Word.ListCollection:class" />'
description: ''
extends: '<xref uid="office!OfficeExtension.ClientObject:class" />'