[Mono-list] Single .dll targeted at multi platform but using sqlite, possible?

KeithBoynton keithboynton at flaredesign.co.uk
Thu Aug 23 23:59:55 UTC 2012

So I had to write a SafeCastToBoolean(Object objectToCast) method with logic
in there is work out the object type in order to cast from an int64 to a

Seems strange to have to do this but there you go, I couldn't find any other
information on the subject. I'm aware that SQLite has limited storage types
but I'm confused as to why when you create a column in a table like this:


Then a call to reader.GetFieldType() for that column returns "System.Int64".

Anyhow, it's working and I've worked around this issue for now.

So....I've transferred everything to a mono project on the MacOS, the
project builds successfully. It's starting to look promising as when I debug
it and it creates the sqlite DB file however it then gives this error:

database is locked at
(System.String pzStart, System.String& pzTail, Community.CsharpSqlite.Vdbe&
pStmt) [0x00000] in <filename unknown>:0 
  at Community.CsharpSqlite.SQLiteClient.SqliteCommand.ExecuteReader
(CommandBehavior behavior, Boolean want_results, System.Int32&
rows_affected) [0x00000] in <filename unknown>:0 
  at Community.CsharpSqlite.SQLiteClient.SqliteCommand.ExecuteReader
(CommandBehavior behavior) [0x00000] in <filename unknown>:0 
  at Community.CsharpSqlite.SQLiteClient.SqliteCommand.ExecuteReader ()
[0x00000] in <filename unknown>:0 
  at Community.CsharpSqlite.SQLiteClient.SqliteCommand.ExecuteScalar ()
[0x00000] in <filename unknown>:0 
  at SoundHound.DatabaseManager.ExecuteScalar (System.String sql) [0x00000]
in <filename unknown>:0 
  at SoundHound.DataAccessManager.InitialiseDataStore () [0x00000] in
<filename unknown>:0

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