public sealed class UpdateDocumentRequest : IMessage<UpdateDocumentRequest>, IEquatable<UpdateDocumentRequest>, IDeepCloneable<UpdateDocumentRequest>, IBufferMessage, IMessage
Reference documentation and code samples for the Firestore v1 API class UpdateDocumentRequest.
The request for
[Firestore.UpdateDocument][google.firestore.v1.Firestore.UpdateDocument].
The fields to update.
None of the field paths in the mask may contain a reserved name.
If the document exists on the server and has fields not referenced in the
mask, they are left unchanged.
Fields referenced in the mask, but not present in the input document, are
deleted from the document on the server.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThis document provides reference information for the \u003ccode\u003eUpdateDocumentRequest\u003c/code\u003e class within the Google Cloud Firestore v1 API for .NET, specifically version 3.2.0.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eUpdateDocumentRequest\u003c/code\u003e is a class used to request an update to a document in Firestore, and it implements multiple interfaces including \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe class includes properties like \u003ccode\u003eCurrentDocument\u003c/code\u003e, \u003ccode\u003eDocument\u003c/code\u003e, \u003ccode\u003eMask\u003c/code\u003e, and \u003ccode\u003eUpdateMask\u003c/code\u003e, which control preconditions, the updated document data, the fields to return, and the fields to update, respectively.\u003c/p\u003e\n"],["\u003cp\u003eThere are multiple versions of the \u003ccode\u003eUpdateDocumentRequest\u003c/code\u003e class, ranging from 2.3.0 to the latest 3.10.0.\u003c/p\u003e\n"],["\u003cp\u003eThe class offers two constructors: a default constructor and one that creates a copy from an existing \u003ccode\u003eUpdateDocumentRequest\u003c/code\u003e instance.\u003c/p\u003e\n"]]],[],null,[]]