Field Class

Definition

Represents a field in an index definition in Azure Search, which describes the name, data type, and search behavior of a field.

public class Field
type Field = class
Public Class Field
Inheritance
Field

Constructors

Field(String, AnalyzerName)

Initializes a new searchable string Field with required arguments.

Field(String, DataType)

Initializes a new simple Field with required arguments.

Field(String, DataType, AnalyzerName)

Initializes a new searchable simple Field with required arguments.

Field(String, DataType, IList<Field>)

Initializes a new complex Field with required arguments.

Properties

Analyzer

Gets or sets the name of the language analyzer to use for the field. This option can be used only with searchable fields and it can't be set together with either searchAnalyzer or indexAnalyzer. Once the analyzer is chosen, it cannot be changed for the field. Must be null for complex fields. Possible values include: 'ar.microsoft', 'ar.lucene', 'hy.lucene', 'bn.microsoft', 'eu.lucene', 'bg.microsoft', 'bg.lucene', 'ca.microsoft', 'ca.lucene', 'zh-Hans.microsoft', 'zh-Hans.lucene', 'zh-Hant.microsoft', 'zh-Hant.lucene', 'hr.microsoft', 'cs.microsoft', 'cs.lucene', 'da.microsoft', 'da.lucene', 'nl.microsoft', 'nl.lucene', 'en.microsoft', 'en.lucene', 'et.microsoft', 'fi.microsoft', 'fi.lucene', 'fr.microsoft', 'fr.lucene', 'gl.lucene', 'de.microsoft', 'de.lucene', 'el.microsoft', 'el.lucene', 'gu.microsoft', 'he.microsoft', 'hi.microsoft', 'hi.lucene', 'hu.microsoft', 'hu.lucene', 'is.microsoft', 'id.microsoft', 'id.lucene', 'ga.lucene', 'it.microsoft', 'it.lucene', 'ja.microsoft', 'ja.lucene', 'kn.microsoft', 'ko.microsoft', 'ko.lucene', 'lv.microsoft', 'lv.lucene', 'lt.microsoft', 'ml.microsoft', 'ms.microsoft', 'mr.microsoft', 'nb.microsoft', 'no.lucene', 'fa.lucene', 'pl.microsoft', 'pl.lucene', 'pt-BR.microsoft', 'pt-BR.lucene', 'pt-PT.microsoft', 'pt-PT.lucene', 'pa.microsoft', 'ro.microsoft', 'ro.lucene', 'ru.microsoft', 'ru.lucene', 'sr-cyrillic.microsoft', 'sr-latin.microsoft', 'sk.microsoft', 'sl.microsoft', 'es.microsoft', 'es.lucene', 'sv.microsoft', 'sv.lucene', 'ta.microsoft', 'te.microsoft', 'th.microsoft', 'th.lucene', 'tr.microsoft', 'tr.lucene', 'uk.microsoft', 'ur.microsoft', 'vi.microsoft', 'standard.lucene', 'standardasciifolding.lucene', 'keyword', 'pattern', 'simple', 'stop', 'whitespace'

Fields

Gets or sets a list of sub-fields if this is a field of type Edm.ComplexType or Collection(Edm.ComplexType). Must be null or empty for simple fields.

IndexAnalyzer

Gets or sets the name of the analyzer used at indexing time for the field. This option can be used only with searchable fields. It must be set together with searchAnalyzer and it cannot be set together with the analyzer option. Once the analyzer is chosen, it cannot be changed for the field. Must be null for complex fields. Possible values include: 'ar.microsoft', 'ar.lucene', 'hy.lucene', 'bn.microsoft', 'eu.lucene', 'bg.microsoft', 'bg.lucene', 'ca.microsoft', 'ca.lucene', 'zh-Hans.microsoft', 'zh-Hans.lucene', 'zh-Hant.microsoft', 'zh-Hant.lucene', 'hr.microsoft', 'cs.microsoft', 'cs.lucene', 'da.microsoft', 'da.lucene', 'nl.microsoft', 'nl.lucene', 'en.microsoft', 'en.lucene', 'et.microsoft', 'fi.microsoft', 'fi.lucene', 'fr.microsoft', 'fr.lucene', 'gl.lucene', 'de.microsoft', 'de.lucene', 'el.microsoft', 'el.lucene', 'gu.microsoft', 'he.microsoft', 'hi.microsoft', 'hi.lucene', 'hu.microsoft', 'hu.lucene', 'is.microsoft', 'id.microsoft', 'id.lucene', 'ga.lucene', 'it.microsoft', 'it.lucene', 'ja.microsoft', 'ja.lucene', 'kn.microsoft', 'ko.microsoft', 'ko.lucene', 'lv.microsoft', 'lv.lucene', 'lt.microsoft', 'ml.microsoft', 'ms.microsoft', 'mr.microsoft', 'nb.microsoft', 'no.lucene', 'fa.lucene', 'pl.microsoft', 'pl.lucene', 'pt-BR.microsoft', 'pt-BR.lucene', 'pt-PT.microsoft', 'pt-PT.lucene', 'pa.microsoft', 'ro.microsoft', 'ro.lucene', 'ru.microsoft', 'ru.lucene', 'sr-cyrillic.microsoft', 'sr-latin.microsoft', 'sk.microsoft', 'sl.microsoft', 'es.microsoft', 'es.lucene', 'sv.microsoft', 'sv.lucene', 'ta.microsoft', 'te.microsoft', 'th.microsoft', 'th.lucene', 'tr.microsoft', 'tr.lucene', 'uk.microsoft', 'ur.microsoft', 'vi.microsoft', 'standard.lucene', 'standardasciifolding.lucene', 'keyword', 'pattern', 'simple', 'stop', 'whitespace'

IsFacetable

Gets or sets a value indicating whether to enable the field to be referenced in facet queries. Typically used in a presentation of search results that includes hit count by category (for example, search for digital cameras and see hits by brand, by megapixels, by price, and so on). This property must be null for complex fields. Fields of type Edm.GeographyPoint or Collection(Edm.GeographyPoint) cannot be facetable. All other simple fields can be facetable. Default is false for simple fields, and null for complex fields.

IsFilterable

Gets or sets a value indicating whether to enable the field to be referenced in $filter queries. filterable differs from searchable in how strings are handled. Fields of type Edm.String or Collection(Edm.String) that are filterable do not undergo word-breaking, so comparisons are for exact matches only. For example, if you set such a field f to "sunny day", $filter=f eq 'sunny' will find no matches, but $filter=f eq 'sunny day' will. This property must be null for complex fields. Default is false for simple fields and null for complex fields.

IsKey

Gets or sets a value indicating whether the field uniquely identifies documents in the index. Exactly one top-level field in each index must be chosen as the key field and it must be of type Edm.String. Key fields can be used to look up documents directly and update or delete specific documents. Default is false for simple fields and null for complex fields.

IsRetrievable

Gets or sets a value indicating whether the field can be returned in a search result. You can disable this option if you want to use a field (for example, margin) as a filter, sorting, or scoring mechanism but do not want the field to be visible to the end user. This property must be true for key fields, and it must be null for complex fields. This property can be changed on existing fields. Enabling this property does not cause any increase in index storage requirements. Default is true for simple fields and null for complex fields.

IsSearchable

Gets or sets a value indicating whether the field is full-text searchable. This means it will undergo analysis such as word-breaking during indexing. If you set a searchable field to a value like "sunny day", internally it will be split into the individual tokens "sunny" and "day". This enables full-text searches for these terms. This property may be set to true only for fields of type Edm.String or Collection(Edm.String), and it must be null for complex fields. Default is false for simple fields and null for complex fields. Note: searchable fields consume extra space in your index since Azure Search will store an additional tokenized version of the field value for full-text searches. If you want to save space in your index and you don't need a field to be included in searches, set searchable to false.

IsSortable

Gets or sets a value indicating whether to enable the field to be referenced in $orderby expressions. By default Azure Search sorts results by score, but in many experiences users will want to sort by fields in the documents. A simple field can be sortable only if it is single-valued (it has a single value in the scope of the parent document). Simple collection fields cannot be sortable, since they are multi-valued. Simple sub-fields of complex collections are also multi-valued, and therefore cannot be sortable. This is true whether it's an immediate parent field, or an ancestor field, that's the complex collection. Complex fields cannot be sortable and the sortable property must be null for such fields. The default for sortable is false for simple fields, and null for complex fields.

Name

Gets or sets the name of the field, which must be unique within the fields collection of the index or parent field.

SearchAnalyzer

Gets or sets the name of the analyzer used at search time for the field. This option can be used only with searchable fields. It must be set together with indexAnalyzer and it cannot be set together with the analyzer option. This analyzer can be updated on an existing field. Must be null for complex fields. Possible values include: 'ar.microsoft', 'ar.lucene', 'hy.lucene', 'bn.microsoft', 'eu.lucene', 'bg.microsoft', 'bg.lucene', 'ca.microsoft', 'ca.lucene', 'zh-Hans.microsoft', 'zh-Hans.lucene', 'zh-Hant.microsoft', 'zh-Hant.lucene', 'hr.microsoft', 'cs.microsoft', 'cs.lucene', 'da.microsoft', 'da.lucene', 'nl.microsoft', 'nl.lucene', 'en.microsoft', 'en.lucene', 'et.microsoft', 'fi.microsoft', 'fi.lucene', 'fr.microsoft', 'fr.lucene', 'gl.lucene', 'de.microsoft', 'de.lucene', 'el.microsoft', 'el.lucene', 'gu.microsoft', 'he.microsoft', 'hi.microsoft', 'hi.lucene', 'hu.microsoft', 'hu.lucene', 'is.microsoft', 'id.microsoft', 'id.lucene', 'ga.lucene', 'it.microsoft', 'it.lucene', 'ja.microsoft', 'ja.lucene', 'kn.microsoft', 'ko.microsoft', 'ko.lucene', 'lv.microsoft', 'lv.lucene', 'lt.microsoft', 'ml.microsoft', 'ms.microsoft', 'mr.microsoft', 'nb.microsoft', 'no.lucene', 'fa.lucene', 'pl.microsoft', 'pl.lucene', 'pt-BR.microsoft', 'pt-BR.lucene', 'pt-PT.microsoft', 'pt-PT.lucene', 'pa.microsoft', 'ro.microsoft', 'ro.lucene', 'ru.microsoft', 'ru.lucene', 'sr-cyrillic.microsoft', 'sr-latin.microsoft', 'sk.microsoft', 'sl.microsoft', 'es.microsoft', 'es.lucene', 'sv.microsoft', 'sv.lucene', 'ta.microsoft', 'te.microsoft', 'th.microsoft', 'th.lucene', 'tr.microsoft', 'tr.lucene', 'uk.microsoft', 'ur.microsoft', 'vi.microsoft', 'standard.lucene', 'standardasciifolding.lucene', 'keyword', 'pattern', 'simple', 'stop', 'whitespace'

SynonymMaps

Gets or sets a list of the names of synonym maps to associate with this field. This option can be used only with searchable fields. Currently only one synonym map per field is supported. Assigning a synonym map to a field ensures that query terms targeting that field are expanded at query-time using the rules in the synonym map. This attribute can be changed on existing fields. Must be null or an empty collection for complex fields.

Type

Gets or sets the data type of the field. Possible values include: 'Edm.String', 'Edm.Int32', 'Edm.Int64', 'Edm.Double', 'Edm.Boolean', 'Edm.DateTimeOffset', 'Edm.GeographyPoint', 'Edm.ComplexType'

Methods

New(String, DataType, Boolean, Boolean, Boolean, Boolean, Boolean, Boolean, Nullable<AnalyzerName>, Nullable<AnalyzerName>, Nullable<AnalyzerName>, IList<String>)

Creates a new simple Field with required arguments.

NewComplex(String, Boolean, IList<Field>)

Creates a new complex Field with required arguments.

NewSearchableCollection(String, AnalyzerName, Boolean, Boolean, Boolean, Boolean, IList<String>)

Creates a new searchable string collection Field with required arguments.

NewSearchableString(String, AnalyzerName, Boolean, Boolean, Boolean, Boolean, Boolean, IList<String>)

Creates a new searchable string Field with required arguments.

Validate()

Validate the object.

Applies to