AWS services or capabilities described in AWS Documentation may vary by region/location. Click Getting Started with Amazon AWS to see specific differences applicable to the China (Beijing) Region.
For the base .NET 3.5 and .NET 4.5 version of the SDK the identity id is not cached. To support caching the CacheIdentityId, GetCachedIdentityId and ClearIdentityCache methods need to be overridden.
Namespace: Amazon.CognitoIdentity
Assembly: AWSSDK.dll
Version: (assembly version)
public virtual void ClearIdentityCache()
.NET Framework:
Supported in: 4.5, 4.0, 3.5