[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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 page provides documentation for the \u003ccode\u003ePrecondition\u003c/code\u003e class within the Google Cloud Firestore API for .NET, detailing its use in update operations.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePrecondition\u003c/code\u003e class is immutable and allows for specifying whether a document must exist or must not exist, or if it must have a specific last update time.\u003c/p\u003e\n"],["\u003cp\u003eKey properties of the \u003ccode\u003ePrecondition\u003c/code\u003e class include \u003ccode\u003eExists\u003c/code\u003e to check for document existence and \u003ccode\u003eLastUpdateTime\u003c/code\u003e to check for the document's last update timestamp.\u003c/p\u003e\n"],["\u003cp\u003eStatic properties such as \u003ccode\u003eMustExist\u003c/code\u003e and \u003ccode\u003eNone\u003c/code\u003e provide predefined preconditions for common scenarios, specifically checking for document existence or no preconditions.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eLastUpdated\u003c/code\u003e method allows the creation of a \u003ccode\u003ePrecondition\u003c/code\u003e that specifies a required last update time for the document, which is provided as a timestamp.\u003c/p\u003e\n"]]],[],null,[]]
