Click or drag to resize

KnownMetadataHelper Class

Helper class to access lists of known metadata field names by .NET type and by document format types.
Inheritance Hierarchy
SystemObject
  OpenDiscoverSDK.Interfaces.MetadataKnownMetadataHelper

Namespace: OpenDiscoverSDK.Interfaces.Metadata
Assembly: OpenDiscoverSDK.Interfaces (in OpenDiscoverSDK.Interfaces.dll) Version: 2025.4.4.0 (2025.4.4)
Syntax
C#
Copy
public static class KnownMetadataHelper

The KnownMetadataHelper type exposes the following members.

Properties
 NameDescription
Public propertyStatic memberArchiveTypeMetadataFields Archive (.7z, .zip, .rar, etc) associated metadata fields (see KnownMetadataField).
Public propertyStatic memberBooleanMetadataFields All boolean type known metadata field names.
Public propertyStatic memberDateTimeMetadataFields All DateTime type known metadata field names.
Public propertyStatic memberDocumentStoreTypeMetadataFields Document store (DXL database, etc) metadata fields (see KnownMetadataField).
Public propertyStatic memberDoubleMetadataFields All double type known metadata field names.
Public propertyStatic memberEmailMapiTypeMetadataFields Outlook/Exchange MAPI .msg object associated metadata fields (see KnownMetadataField).
Public propertyStatic memberEmailTypeMetadataFields Common (shared) email document associated metadata fields (see KnownMetadataField).
Public propertyStatic memberHtmlTypeMetadataFields HTML document associated metadata fields (see KnownMetadataField).
Public propertyStatic memberImageTypeMetadataFields Image document associated metadata fields (see KnownMetadataField).
Public propertyStatic memberInt32MetadataFields All Int32 type known metadata field names.
Public propertyStatic memberInt64MetadataFields All Int64 type known metadata field names.
Public propertyStatic memberMailStoreTypeMetadataFields Mail store (.pst, .ost, .mbox, etc.) associated metadata fields (see KnownMetadataField).
Public propertyStatic memberMessagingStoreTypeMetadataFields Messaging store (Slack export, WhatsApp export, etc) associated metadata fields (see KnownMetadataField).
Public propertyStatic memberMessagingTypeMetadataFields Messaging type metadata fields (see KnownMetadataField, e.g., Teams, Slack, etc., message metadata).
Public propertyStatic memberMultimediaTypeMetadataFields Multimedia document associated metadata fields (see KnownMetadataField).
Public propertyStatic memberOfficeTypeMetadataFields Common office document type associated metadata fields (see KnownMetadataField).
Public propertyStatic memberOtherTypeMetadataFields "Other" (miscellaneous) metadata fields (see KnownMetadataField).
Public propertyStatic memberReservedMetadataFields Reserved metadata fields (see KnownMetadataField).
Public propertyStatic memberStringMetadataFields All string type known metadata field names.
Top
Remarks

The helper lists of metadata fields in this class can be used to populate UI drop down lists of fields to search for in full-text search indexes, for example.

This class uses reflection to create lists of the defined fields and field attributes in classes KnownBooleanMetadataFields, KnownDateTimeMetadataFields, KnownDoubleMetadataFields, KnownInt32MetadataFields, KnownInt64MetadataFields, and KnownStringMetadataFields.

See Also