protected Repository()
{
    try
    {
        new DL.MainDatabase(dbLocation);
    }
    catch
    {
        // Throw Exception
// disk i/o error
// at sqlite.sqlite3.prepare2(sqlitepcl.sqlite3 db, system.string query)[0x0001b]....
    }
}

public static string DatabaseFilePath
{
    get
    {
        string applicationFolderPath = System.IO.Path.Combine(System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal), "Folder");

        // Create the folder path.
        System.IO.Directory.CreateDirectory(applicationFolderPath);

        return System.IO.Path.Combine(applicationFolderPath, "DB.db");
    }
}