A path is a list of property names separated by dots (.), for example
foo.bar means the property bar inside the entity property foo inside
the entity associated with this path.
If a property name contains a dot . or a backslash \, then that
name must be escaped.
A path must not be empty, and may not reference a value inside an
[array value][google.datastore.v1.Value.array_value].
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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 \u003ccode\u003ePropertyMask\u003c/code\u003e class within the Google Cloud Datastore V1 API is 4.15.0.\u003c/p\u003e\n"],["\u003cp\u003eThis class, \u003ccode\u003ePropertyMask\u003c/code\u003e, is used to restrict operations to a specific subset of properties in an entity by defining nested property paths.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePropertyMask\u003c/code\u003e class inherits from \u003ccode\u003eobject\u003c/code\u003e and implements \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 \u003ccode\u003ePropertyMask\u003c/code\u003e class includes a \u003ccode\u003ePaths\u003c/code\u003e property, which is a list of the paths to the properties covered by the mask, expressed as a \u003ccode\u003eRepeatedField\u003c/code\u003e of strings.\u003c/p\u003e\n"],["\u003cp\u003eThere are several documented versions available for \u003ccode\u003ePropertyMask\u003c/code\u003e class starting from version 3.2.0 to the latest, 4.15.0.\u003c/p\u003e\n"]]],[],null,["# Google Cloud Datastore v1 API - Class PropertyMask (4.15.0)\n\nVersion latestkeyboard_arrow_down\n\n- [4.15.0 (latest)](/dotnet/docs/reference/Google.Cloud.Datastore.V1/latest/Google.Cloud.Datastore.V1.PropertyMask)\n- [4.14.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/4.14.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [4.13.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/4.13.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [4.12.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/4.12.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [4.11.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/4.11.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [4.10.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/4.10.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [4.9.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/4.9.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [4.8.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/4.8.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [4.7.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/4.7.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [4.6.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/4.6.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [4.5.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/4.5.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [4.4.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/4.4.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [4.3.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/4.3.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [4.2.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/4.2.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [4.1.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/4.1.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [4.0.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/4.0.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [3.5.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/3.5.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [3.4.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/3.4.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [3.3.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/3.3.0/Google.Cloud.Datastore.V1.PropertyMask)\n- [3.2.0](/dotnet/docs/reference/Google.Cloud.Datastore.V1/3.2.0/Google.Cloud.Datastore.V1.PropertyMask) \n\n public sealed class PropertyMask : IMessage\u003cPropertyMask\u003e, IEquatable\u003cPropertyMask\u003e, IDeepCloneable\u003cPropertyMask\u003e, IBufferMessage, IMessage\n\nReference documentation and code samples for the Google Cloud Datastore v1 API class PropertyMask.\n\nThe set of arbitrarily nested property paths used to restrict an operation to\nonly a subset of properties in an entity. \n\nInheritance\n-----------\n\n[object](https://learn.microsoft.com/dotnet/api/system.object) \\\u003e PropertyMask \n\nImplements\n----------\n\n[IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage-1.html)[PropertyMask](/dotnet/docs/reference/Google.Cloud.Datastore.V1/latest/Google.Cloud.Datastore.V1.PropertyMask), [IEquatable](https://learn.microsoft.com/dotnet/api/system.iequatable-1)[PropertyMask](/dotnet/docs/reference/Google.Cloud.Datastore.V1/latest/Google.Cloud.Datastore.V1.PropertyMask), [IDeepCloneable](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IDeepCloneable-1.html)[PropertyMask](/dotnet/docs/reference/Google.Cloud.Datastore.V1/latest/Google.Cloud.Datastore.V1.PropertyMask), [IBufferMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IBufferMessage.html), [IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage.html) \n\nInherited Members\n-----------------\n\n[object.GetHashCode()](https://learn.microsoft.com/dotnet/api/system.object.gethashcode) \n[object.GetType()](https://learn.microsoft.com/dotnet/api/system.object.gettype) \n[object.ToString()](https://learn.microsoft.com/dotnet/api/system.object.tostring)\n\nNamespace\n---------\n\n[Google.Cloud.Datastore.V1](/dotnet/docs/reference/Google.Cloud.Datastore.V1/latest/Google.Cloud.Datastore.V1)\n\nAssembly\n--------\n\nGoogle.Cloud.Datastore.V1.dll\n\nConstructors\n------------\n\n### PropertyMask()\n\n public PropertyMask()\n\n### PropertyMask(PropertyMask)\n\n public PropertyMask(PropertyMask other)\n\nProperties\n----------\n\n### Paths\n\n public RepeatedField\u003cstring\u003e Paths { get; }\n\nThe paths to the properties covered by this mask.\n\nA path is a list of property names separated by dots (`.`), for example\n`foo.bar` means the property `bar` inside the entity property `foo` inside\nthe entity associated with this path.\n\nIf a property name contains a dot `.` or a backslash `\\`, then that\nname must be escaped.\n\nA path must not be empty, and may not reference a value inside an\n\\[array value\\]\\[google.datastore.v1.Value.array_value\\]."]]
