Required. The language of this conversational query. See Language
Support
for a list of the currently supported language codes. Note that queries in
the same session do not necessarily need to specify the same language.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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\u003eThe latest version of the Google.Cloud.Dialogflow.V2.TextInput API is 4.26.0, with numerous previous versions available for reference, including versions down to 3.2.0.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eTextInput\u003c/code\u003e represents natural language text that is meant to be processed by the Dialogflow API and it implements several interfaces such as \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\u003e\u003ccode\u003eTextInput\u003c/code\u003e has two constructors: a default constructor, and one that accepts another \u003ccode\u003eTextInput\u003c/code\u003e instance as a parameter for copying.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eTextInput\u003c/code\u003e class has two key properties: \u003ccode\u003eLanguageCode\u003c/code\u003e, which specifies the language of the conversational query, and \u003ccode\u003eText\u003c/code\u003e, which contains the UTF-8 encoded natural language text to be processed, limited to 256 characters.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eTextInput\u003c/code\u003e class inherits members from the \u003ccode\u003eObject\u003c/code\u003e class, such as \u003ccode\u003eGetHashCode\u003c/code\u003e, \u003ccode\u003eGetType\u003c/code\u003e, \u003ccode\u003eMemberwiseClone\u003c/code\u003e, and \u003ccode\u003eToString\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]