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ReadPreferenceMode Enumeration
Represents the read preference mode.

Namespace: MongoDB.Driver
Assembly: MongoDB.Driver.Core (in MongoDB.Driver.Core.dll) Version: 2.3.0
Syntax
public enum ReadPreferenceMode
Members
  Member nameValueDescription
Primary0 Reads should be from the primary.
PrimaryPreferred1 Reads should be from the primary if possible, otherwise from a secondary.
Secondary2 Reads should be from a secondary.
SecondaryPreferred3 Reads should be from a secondary if possible, otherwise from the primary.
Nearest4 Reads should be from any server that is within the latency threshold window.
See Also