Connection String

Mauricio David edited this page Feb 4, 2018 · 11 revisions

LiteDatabase can be initialize using a string connection, with key1=value1; key2=value2; ... syntax. If there is no ; in your connection string, LiteDB assume that your connection string is Filename key. Keys are case insensitive.


  • Filename (string): Full path or relative path from DLL directory.
  • Journal (bool): Enabled or disable double write check to ensure durability (default: true)
  • Password (string): Encrypt (using AES) your datafile with a password (default: null - no encryption)
  • Cache Size (int): Max number of pages in cache. After this size, flush data to disk to avoid too memory usage (default: 5000)
  • Timeout (TimeSpan): Timeout for waiting unlock operations (thread lock and locked file)
  • Mode (Exclusive|ReadOnly|Shared): How datafile will be open (default: Shared in NET35/NET40/NETStandard2.0 and Exclusive in NETStandard1.3)
  • Initial Size (string|long): If database is new, initialize with allocated space - support KB, MB, GB (default: null)
  • Limit Size (string|long): Max limit of datafile - support KB, MB, GB (default: null)
  • Upgrade (bool): If true, try upgrade datafile from old version (v2) (default: null)
  • Log (byte): Debug messages from database - use LiteDatabase.Log (default: Logger.NONE)
  • Async (bool): Support "sync over async" file stream creation to use in UWP access any disk folder (only for NetStandard, default: false)
  • Flush (bool): Write data direct to disk avoiding OS cache (not available in NET35, default: false) (v4.1.2)



        <add name="LiteDB" connectionString="Filename=C:\database.db" />


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