System.Data.SQLite

//      Major Version
//      Minor Version 
//      Build Number
//      Revision
//
// You can specify all the values or you can default the Revision and Build Numbers 
// by using the '*' as shown below:
[assembly: AssemblyVersion("1.0.67.0")]
#if !PLATFORM_COMPACTFRAMEWORK
[assembly: AssemblyFileVersion("1.0.67.0")]
#endif

  /// </item>
  /// <item>
  /// <description>Default IsolationLevel</description>
  /// <description>The default transaciton isolation level</description>
  /// <description>N</description>
  /// <description>Serializable</description>
  /// </item>
  /// <item>
  /// <description>Foreign Keys</description>
  /// <description><b>True</b> - Enables foreign key enforcement<br/><b>False</b> - Disables foreign key enforcement</description>
  /// <description>N</description>
  /// <description>False</description>
  /// </item>
  /// </list>
  /// </remarks>
  public sealed partial class SQLiteConnection : DbConnection, ICloneable
  {
    private const string _dataDirectory = "|DataDirectory|";
    private const string _masterdb = "sqlite_master";
    private const string _tempmasterdb = "sqlite_temp_master";

    /// </item>
    /// <item>
    /// <description>Default IsolationLevel</description>
    /// <description>The default transaciton isolation level</description>
    /// <description>N</description>
    /// <description>Serializable</description>
    /// </item>
    /// <item>
    /// <description>Foreign Keys</description>
    /// <description><b>True</b> - Enables foreign key enforcement<br/><b>False</b> - Disables foreign key enforcement</description>
    /// <description>N</description>
    /// <description>False</description>
    /// </item>
    /// </list>
    /// </remarks>
#if !PLATFORM_COMPACTFRAMEWORK
    [RefreshProperties(RefreshProperties.All), DefaultValue("")]
    [Editor("SQLite.Designer.SQLiteConnectionStringEditor, SQLite.Designer, Version=1.0.37.0, Culture=neutral, PublicKeyToken=db937bc2d44ff139", "System.Drawing.Design.UITypeEditor, System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
#endif
    public override string ConnectionString

            if (Convert.ToInt32(defValue, CultureInfo.InvariantCulture) != 2000)
            {
              cmd.CommandText = String.Format(CultureInfo.InvariantCulture, "PRAGMA cache_size={0}", defValue);
              cmd.ExecuteNonQuery();
            }

            defValue = FindKey(opts, "Journal Mode", "Delete");
            if (String.Compare(defValue, "Delete", StringComparison.OrdinalIgnoreCase) != 0)
            {
              cmd.CommandText = String.Format(CultureInfo.InvariantCulture, "PRAGMA journal_mode={0}", defValue);
              cmd.ExecuteNonQuery();
            }

            defValue = FindKey(opts, "Foreign Keys", Boolean.FalseString);
            cmd.CommandText = String.Format(CultureInfo.InvariantCulture, "PRAGMA foreign_keys={0}", SQLiteConvert.ToBoolean(defValue) == true ? "ON" : "OFF");
            cmd.ExecuteNonQuery();
          }

          if (_commitHandler != null)
            _sql.SetCommitHook(_commitCallback);

          if (_updateHandler != null)
            _sql.SetUpdateHook(_updateCallback);

          return Schema_ReservedWords();
      }
      throw new NotSupportedException();
    }

    private static DataTable Schema_ReservedWords()
    {
      DataTable tbl = new DataTable("ReservedWords");

      tbl.Locale = CultureInfo.InvariantCulture;
      tbl.Columns.Add("ReservedWord", typeof(string));
      tbl.Columns.Add("MaximumVersion", typeof(string));
      tbl.Columns.Add("MinimumVersion", typeof(string));

      tbl.BeginLoadData();

          return (IsolationLevel)value;
      }
      set
      {
        this["default isolationlevel"] = value;
      }
    }

    /// <summary>
    /// If enabled, use foreign key constraints
    /// </summary>
    [DisplayName("Foreign Keys")]
    [Browsable(true)]
    [DefaultValue(false)]
    public bool ForeignKeys
    {
        get
        {
            object value;
            TryGetValue("foreign keys", out value);
            return SQLiteConvert.ToBoolean(value);
        }
        set
        {
            this["foreign keys"] = value;
        }
    }

    /// <summary>
    /// Helper function for retrieving values from the connectionstring
    /// </summary>
    /// <param name="keyword">The keyword to retrieve settings for</param>
    /// <param name="value">The resulting parameter value</param>
    /// <returns>Returns true if the value was found and returned</returns>

    /// and the journal re-used as often as needed.  If it is deleted, it will be recreated the next time it is needed.
    /// </summary>
    Persist = 1,
    /// <summary>
    /// This option disables the rollback journal entirely.  Interrupted transactions or a program crash can cause database
    /// corruption in this mode!
    /// </summary>
    Off = 2,
    /// <summary>
    /// This option commits transactions by truncating the rollback journal to zero-length instead of deleting it. On many systems,
    /// truncating a file is much faster than deleting the file since the containing directory does not need to be changed.
    /// </summary>
    Truncate = 3,
  }

  /// <summary>
  /// Struct used internally to determine the datatype of a column in a resultset
  /// </summary>
  internal class SQLiteType
  {

#if !SQLITE_STANDARD

#if !USE_INTEROP_DLL

#if !PLATFORM_COMPACTFRAMEWORK
    private const string SQLITE_DLL = "System.Data.SQLite.DLL";
#else
    internal const string SQLITE_DLL = "SQLite.Interop.067.DLL";
#endif // PLATFORM_COMPACTFRAMEWORK

#else
    private const string SQLITE_DLL = "SQLite.Interop.DLL";
#endif // USE_INTEROP_DLL

#else