Word.Field class

Package:

word

Represents a field.

Extends

OfficeExtension.ClientObject

Remarks

[ API set: WordApi 1.4 ]

Important: To learn more about which fields can be inserted, see the Word.Range.insertField API introduced in requirement set 1.5. Support for managing fields is similar to what's available in the Word UI. However, while the Word UI on the web primarily only supports fields as read-only (see Field codes in Word for the web), the Addin field is editable. To learn more about Word UI clients that more fully support fields, see the product list at the beginning of Insert, edit, and view fields in Word.

Examples

// Link to full sample: https://raw.githubusercontent.com/OfficeDev/office-js-snippets/prod/samples/word/50-document/manage-fields.yaml

// Gets the first field in the document.
await Word.run(async (context) => {
  const field: Word.Field = context.document.body.fields.getFirstOrNullObject();
  field.load(["code", "result", "locked", "type", "data", "kind"]);

  await context.sync();

  if (field.isNullObject) {
    console.log("This document has no fields.");
  } else {
    console.log("Code of first field: " + field.code, "Result of first field: " + JSON.stringify(field.result), "Type of first field: " + field.type, "Is the first field locked? " + field.locked, "Kind of the first field: " + field.kind);
  }
});

Properties

code	Specifies the field's code instruction.
context	The request context associated with the object. This connects the add-in's process to the Office host application's process.
data	Specifies data in an "Addin" field. If the field isn't an "Addin" field, it is null and it will throw a general exception when code attempts to set it.
kind	Gets the field's kind.
locked	Specifies whether the field is locked. true if the field is locked, false otherwise.
parentBody	Gets the parent body of the field.
parentContentControl	Gets the content control that contains the field. Throws an ItemNotFound error if there isn't a parent content control.
parentContentControlOrNullObject	Gets the content control that contains the field. If there isn't a parent content control, then this method will return an object with its isNullObject property set to true. For further information, see *OrNullObject methods and properties.
parentTable	Gets the table that contains the field. Throws an ItemNotFound error if it isn't contained in a table.
parentTableCell	Gets the table cell that contains the field. Throws an ItemNotFound error if it isn't contained in a table cell.
parentTableCellOrNullObject	Gets the table cell that contains the field. If it isn't contained in a table cell, then this method will return an object with its isNullObject property set to true. For further information, see *OrNullObject methods and properties.
parentTableOrNullObject	Gets the table that contains the field. If it isn't contained in a table, then this method will return an object with its isNullObject property set to true. For further information, see *OrNullObject methods and properties.
result	Gets the field's result data.
showCodes	Specifies whether the field codes are displayed for the specified field. true if the field codes are displayed, false otherwise.
type	Gets the field's type.

Methods

delete()	Deletes the field.
getNext()	Gets the next field. Throws an ItemNotFound error if this field is the last one.
getNextOrNullObject()	Gets the next field. If this field is the last one, then this method will return an object with its isNullObject property set to true. For further information, see *OrNullObject methods and properties.
load(options)	Queues up a command to load the specified properties of the object. You must call context.sync() before reading the properties.
load(propertyNames)	Queues up a command to load the specified properties of the object. You must call context.sync() before reading the properties.
load(propertyNamesAndPaths)	Queues up a command to load the specified properties of the object. You must call context.sync() before reading the properties.
select(selectionMode)	Selects the field.
select(selectionModeString)	Selects the field.
set(properties, options)	Sets multiple properties of an object at the same time. You can pass either a plain object with the appropriate properties, or another API object of the same type.
set(properties)	Sets multiple properties on the object at the same time, based on an existing loaded object.
toJSON()	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's passed to it.) Whereas the original Word.Field object is an API object, the toJSON method returns a plain JavaScript object (typed as Word.Interfaces.FieldData) that contains shallow copies of any loaded child properties from the original object.
track()	Track the object for automatic adjustment based on surrounding changes in the document. This call is a shorthand for context.trackedObjects.add(thisObject). 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.
untrack()	Release the memory associated with this object, if it has previously been tracked. This call is shorthand for context.trackedObjects.remove(thisObject). 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.
updateResult()	Updates the field.

Property Details

code

Specifies the field's code instruction.

code: string;

Property Value

string

Remarks

[ API set: WordApi 1.4 ]

Note: The ability to set the code was introduced in WordApi 1.5.

Examples

// Link to full sample: https://raw.githubusercontent.com/OfficeDev/office-js-snippets/prod/samples/word/50-document/manage-fields.yaml

// Gets the first field in the document.
await Word.run(async (context) => {
  const field: Word.Field = context.document.body.fields.getFirstOrNullObject();
  field.load(["code", "result", "locked", "type", "data", "kind"]);

  await context.sync();

  if (field.isNullObject) {
    console.log("This document has no fields.");
  } else {
    console.log("Code of first field: " + field.code, "Result of first field: " + JSON.stringify(field.result), "Type of first field: " + field.type, "Is the first field locked? " + field.locked, "Kind of the first field: " + field.kind);
  }
});

context

The request context associated with the object. This connects the add-in's process to the Office host application's process.

context: RequestContext;

Property Value

Word.RequestContext

data

Specifies data in an "Addin" field. If the field isn't an "Addin" field, it is null and it will throw a general exception when code attempts to set it.

data: string;

Property Value

string

Remarks

[ API set: WordApi 1.5 ]

kind

Gets the field's kind.

readonly kind: Word.FieldKind | "None" | "Hot" | "Warm" | "Cold";

Property Value

Word.FieldKind | "None" | "Hot" | "Warm" | "Cold"

Remarks

[ API set: WordApi 1.5 ]

Examples

// Link to full sample: https://raw.githubusercontent.com/OfficeDev/office-js-snippets/prod/samples/word/50-document/manage-fields.yaml

// Gets the first field in the document.
await Word.run(async (context) => {
  const field: Word.Field = context.document.body.fields.getFirstOrNullObject();
  field.load(["code", "result", "locked", "type", "data", "kind"]);

  await context.sync();

  if (field.isNullObject) {
    console.log("This document has no fields.");
  } else {
    console.log("Code of first field: " + field.code, "Result of first field: " + JSON.stringify(field.result), "Type of first field: " + field.type, "Is the first field locked? " + field.locked, "Kind of the first field: " + field.kind);
  }
});

locked

Specifies whether the field is locked. true if the field is locked, false otherwise.

locked: boolean;

Property Value

boolean

Remarks

[ API set: WordApi 1.5 ]

Examples

// Link to full sample: https://raw.githubusercontent.com/OfficeDev/office-js-snippets/prod/samples/word/50-document/manage-fields.yaml

// Gets the first field in the selection and toggles between setting it to locked or unlocked.
await Word.run(async (context) => {
  let field = context.document.getSelection().fields.getFirstOrNullObject();
  field.load(["code", "result", "type", "locked"]);
  await context.sync();

  if (field.isNullObject) {
    console.log("The selection has no fields.");
  } else {
    console.log(`The first field in the selection is currently ${field.locked ? "locked" : "unlocked"}.`);
    field.locked = !field.locked;
    await context.sync();

    console.log(`The first field in the selection is now ${field.locked ? "locked" : "unlocked"}.`);
  }
});

parentBody

Gets the parent body of the field.

readonly parentBody: Word.Body;

Property Value

Word.Body

Remarks

[ API set: WordApi 1.4 ]

Examples

// Link to full sample: https://raw.githubusercontent.com/OfficeDev/office-js-snippets/prod/samples/word/50-document/manage-fields.yaml

// Gets the parent body of the first field in the document.
await Word.run(async (context) => {
  const field: Word.Field = context.document.body.fields.getFirstOrNullObject();
  field.load("parentBody/text");

  await context.sync();

  if (field.isNullObject) {
    console.log("This document has no fields.");
  } else {
    const parentBody: Word.Body = field.parentBody;
    console.log("Text of first field's parent body: " + JSON.stringify(parentBody.text));
  }
});

parentContentControl

Gets the content control that contains the field. Throws an ItemNotFound error if there isn't a parent content control.

readonly parentContentControl: Word.ContentControl;

Property Value

Word.ContentControl

Remarks

[ API set: WordApi 1.4 ]

parentContentControlOrNullObject

Gets the content control that contains the field. If there isn't a parent content control, then this method will return an object with its isNullObject property set to true. For further information, see *OrNullObject methods and properties.

readonly parentContentControlOrNullObject: Word.ContentControl;

Property Value

Word.ContentControl

Remarks

[ API set: WordApi 1.4 ]

parentTable

Gets the table that contains the field. Throws an ItemNotFound error if it isn't contained in a table.

readonly parentTable: Word.Table;

Property Value

Word.Table

Remarks

[ API set: WordApi 1.4 ]

parentTableCell

Gets the table cell that contains the field. Throws an ItemNotFound error if it isn't contained in a table cell.

readonly parentTableCell: Word.TableCell;

Property Value

Word.TableCell

Remarks

[ API set: WordApi 1.4 ]

parentTableCellOrNullObject

Gets the table cell that contains the field. If it isn't contained in a table cell, then this method will return an object with its isNullObject property set to true. For further information, see *OrNullObject methods and properties.

readonly parentTableCellOrNullObject: Word.TableCell;

Property Value

Word.TableCell

Remarks

[ API set: WordApi 1.4 ]

parentTableOrNullObject

Gets the table that contains the field. If it isn't contained in a table, then this method will return an object with its isNullObject property set to true. For further information, see *OrNullObject methods and properties.

readonly parentTableOrNullObject: Word.Table;

Property Value

Word.Table

Remarks

[ API set: WordApi 1.4 ]

result

Gets the field's result data.

readonly result: Word.Range;

Property Value

Word.Range

Remarks

[ API set: WordApi 1.4 ]

Examples

// Link to full sample: https://raw.githubusercontent.com/OfficeDev/office-js-snippets/prod/samples/word/50-document/manage-fields.yaml

// Gets the first field in the document.
await Word.run(async (context) => {
  const field: Word.Field = context.document.body.fields.getFirstOrNullObject();
  field.load(["code", "result", "locked", "type", "data", "kind"]);

  await context.sync();

  if (field.isNullObject) {
    console.log("This document has no fields.");
  } else {
    console.log("Code of first field: " + field.code, "Result of first field: " + JSON.stringify(field.result), "Type of first field: " + field.type, "Is the first field locked? " + field.locked, "Kind of the first field: " + field.kind);
  }
});

showCodes

Specifies whether the field codes are displayed for the specified field. true if the field codes are displayed, false otherwise.

showCodes: boolean;

Property Value

boolean

Remarks

[ API set: WordApiDesktop 1.1 ]

type

Gets the field's type.

readonly type: Word.FieldType | "Addin" | "AddressBlock" | "Advance" | "Ask" | "Author" | "AutoText" | "AutoTextList" | "BarCode" | "Bibliography" | "BidiOutline" | "Citation" | "Comments" | "Compare" | "CreateDate" | "Data" | "Database" | "Date" | "DisplayBarcode" | "DocProperty" | "DocVariable" | "EditTime" | "Embedded" | "EQ" | "Expression" | "FileName" | "FileSize" | "FillIn" | "FormCheckbox" | "FormDropdown" | "FormText" | "GotoButton" | "GreetingLine" | "Hyperlink" | "If" | "Import" | "Include" | "IncludePicture" | "IncludeText" | "Index" | "Info" | "Keywords" | "LastSavedBy" | "Link" | "ListNum" | "MacroButton" | "MergeBarcode" | "MergeField" | "MergeRec" | "MergeSeq" | "Next" | "NextIf" | "NoteRef" | "NumChars" | "NumPages" | "NumWords" | "OCX" | "Page" | "PageRef" | "Print" | "PrintDate" | "Private" | "Quote" | "RD" | "Ref" | "RevNum" | "SaveDate" | "Section" | "SectionPages" | "Seq" | "Set" | "Shape" | "SkipIf" | "StyleRef" | "Subject" | "Subscriber" | "Symbol" | "TA" | "TC" | "Template" | "Time" | "Title" | "TOA" | "TOC" | "UserAddress" | "UserInitials" | "UserName" | "XE" | "Empty" | "Others" | "Undefined";

Property Value

Word.FieldType | "Addin" | "AddressBlock" | "Advance" | "Ask" | "Author" | "AutoText" | "AutoTextList" | "BarCode" | "Bibliography" | "BidiOutline" | "Citation" | "Comments" | "Compare" | "CreateDate" | "Data" | "Database" | "Date" | "DisplayBarcode" | "DocProperty" | "DocVariable" | "EditTime" | "Embedded" | "EQ" | "Expression" | "FileName" | "FileSize" | "FillIn" | "FormCheckbox" | "FormDropdown" | "FormText" | "GotoButton" | "GreetingLine" | "Hyperlink" | "If" | "Import" | "Include" | "IncludePicture" | "IncludeText" | "Index" | "Info" | "Keywords" | "LastSavedBy" | "Link" | "ListNum" | "MacroButton" | "MergeBarcode" | "MergeField" | "MergeRec" | "MergeSeq" | "Next" | "NextIf" | "NoteRef" | "NumChars" | "NumPages" | "NumWords" | "OCX" | "Page" | "PageRef" | "Print" | "PrintDate" | "Private" | "Quote" | "RD" | "Ref" | "RevNum" | "SaveDate" | "Section" | "SectionPages" | "Seq" | "Set" | "Shape" | "SkipIf" | "StyleRef" | "Subject" | "Subscriber" | "Symbol" | "TA" | "TC" | "Template" | "Time" | "Title" | "TOA" | "TOC" | "UserAddress" | "UserInitials" | "UserName" | "XE" | "Empty" | "Others" | "Undefined"

Remarks

[ API set: WordApi 1.5 ]

Examples

// Link to full sample: https://raw.githubusercontent.com/OfficeDev/office-js-snippets/prod/samples/word/50-document/manage-fields.yaml

// Gets the first field in the document.
await Word.run(async (context) => {
  const field: Word.Field = context.document.body.fields.getFirstOrNullObject();
  field.load(["code", "result", "locked", "type", "data", "kind"]);

  await context.sync();

  if (field.isNullObject) {
    console.log("This document has no fields.");
  } else {
    console.log("Code of first field: " + field.code, "Result of first field: " + JSON.stringify(field.result), "Type of first field: " + field.type, "Is the first field locked? " + field.locked, "Kind of the first field: " + field.kind);
  }
});

Method Details

delete()

Deletes the field.

delete(): void;

Returns

void

Remarks

[ API set: WordApi 1.5 ]

Examples

// Link to full sample: https://raw.githubusercontent.com/OfficeDev/office-js-snippets/prod/samples/word/50-document/manage-fields.yaml

// Deletes the first field in the document.
await Word.run(async (context) => {
  const field: Word.Field = context.document.body.fields.getFirstOrNullObject();
  field.load();

  await context.sync();

  if (field.isNullObject) {
    console.log("This document has no fields.");
  } else {
    field.delete();
    await context.sync();

    console.log("The first field in the document was deleted.");
  }
});

getNext()

Gets the next field. Throws an ItemNotFound error if this field is the last one.

getNext(): Word.Field;

Returns

Word.Field

Remarks

[ API set: WordApi 1.4 ]

getNextOrNullObject()

Gets the next field. If this field is the last one, then this method will return an object with its isNullObject property set to true. For further information, see *OrNullObject methods and properties.

getNextOrNullObject(): Word.Field;

Returns

Word.Field

Remarks

[ API set: WordApi 1.4 ]

load(options)

Queues up a command to load the specified properties of the object. You must call context.sync() before reading the properties.

load(options?: Word.Interfaces.FieldLoadOptions): Word.Field;

Parameters

options

Word.Interfaces.FieldLoadOptions

Provides options for which properties of the object to load.

Returns

Word.Field

load(propertyNames)

Queues up a command to load the specified properties of the object. You must call context.sync() before reading the properties.

load(propertyNames?: string | string[]): Word.Field;

Parameters

propertyNames

string | string[]

A comma-delimited string or an array of strings that specify the properties to load.

Returns

Word.Field

load(propertyNamesAndPaths)

Queues up a command to load the specified properties of the object. You must call context.sync() before reading the properties.

load(propertyNamesAndPaths?: {
            select?: string;
            expand?: string;
        }): Word.Field;

Parameters

propertyNamesAndPaths

{ select?: string; expand?: string; }

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.

Returns

Word.Field

select(selectionMode)

Selects the field.

select(selectionMode?: Word.SelectionMode): void;

Parameters

selectionMode

Word.SelectionMode

Optional. The selection mode must be 'Select', 'Start', or 'End'. 'Select' is the default.

Returns

void

Remarks

[ API set: WordApi 1.5 ]

Examples

// Link to full sample: https://raw.githubusercontent.com/OfficeDev/office-js-snippets/prod/samples/word/50-document/manage-fields.yaml

// Gets and updates the first field in the selection.
await Word.run(async (context) => {
  let field = context.document.getSelection().fields.getFirstOrNullObject();
  field.load(["code", "result", "type", "locked"]);

  await context.sync();

  if (field.isNullObject) {
    console.log("No field in selection.");
  } else {
    console.log("Before updating:", "Code of first field: " + field.code, "Result of first field: " + JSON.stringify(field.result));

    field.updateResult();
    field.select();
    await context.sync();

    field.load(["code", "result"]);
    await context.sync();

    console.log("After updating:", "Code of first field: " + field.code, "Result of first field: " + JSON.stringify(field.result));
  }
});

select(selectionModeString)

Selects the field.

select(selectionModeString?: "Select" | "Start" | "End"): void;

Parameters

selectionModeString

"Select" | "Start" | "End"

Optional. The selection mode must be 'Select', 'Start', or 'End'. 'Select' is the default.

Returns

void

Remarks

[ API set: WordApi 1.5 ]

set(properties, options)

Sets multiple properties of an object at the same time. You can pass either a plain object with the appropriate properties, or another API object of the same type.

set(properties: Interfaces.FieldUpdateData, options?: OfficeExtension.UpdateOptions): void;

Parameters

properties

Word.Interfaces.FieldUpdateData

A JavaScript object with properties that are structured isomorphically to the properties of the object on which the method is called.

options

OfficeExtension.UpdateOptions

Provides an option to suppress errors if the properties object tries to set any read-only properties.

Returns

void

set(properties)

Sets multiple properties on the object at the same time, based on an existing loaded object.

set(properties: Word.Field): void;

Parameters

properties

Word.Field

Returns

void

toJSON()

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's passed to it.) Whereas the original Word.Field object is an API object, the toJSON method returns a plain JavaScript object (typed as Word.Interfaces.FieldData) that contains shallow copies of any loaded child properties from the original object.

toJSON(): Word.Interfaces.FieldData;

Returns

Word.Interfaces.FieldData

track()

Track the object for automatic adjustment based on surrounding changes in the document. This call is a shorthand for context.trackedObjects.add(thisObject). 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.

track(): Word.Field;

Returns

Word.Field

untrack()

Release the memory associated with this object, if it has previously been tracked. This call is shorthand for context.trackedObjects.remove(thisObject). 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.

untrack(): Word.Field;

Returns

Word.Field

updateResult()

Updates the field.

updateResult(): void;

Returns

void

Remarks

[ API set: WordApi 1.5 ]

Examples

// Link to full sample: https://raw.githubusercontent.com/OfficeDev/office-js-snippets/prod/samples/word/50-document/manage-fields.yaml

// Gets and updates the first field in the selection.
await Word.run(async (context) => {
  let field = context.document.getSelection().fields.getFirstOrNullObject();
  field.load(["code", "result", "type", "locked"]);

  await context.sync();

  if (field.isNullObject) {
    console.log("No field in selection.");
  } else {
    console.log("Before updating:", "Code of first field: " + field.code, "Result of first field: " + JSON.stringify(field.result));

    field.updateResult();
    field.select();
    await context.sync();

    field.load(["code", "result"]);
    await context.sync();

    console.log("After updating:", "Code of first field: " + field.code, "Result of first field: " + JSON.stringify(field.result));
  }
});