現在的版本是直接利用反射的，下一步將改編成利用快速反射

public static T ExcuteEntity<T>(SQLiteCommand cmd){Type entityType = typeof(T);PropertyInfo[] fieldinfos = entityType.GetProperties();T entity = (T)Activator.CreateInstance(entityType);DbDataReader reader = null;if (conn == null || conn.Length == 0)throw new ArgumentNullException("connectionString");SQLiteConnection con = new SQLiteConnection(conn);SQLiteTransaction trans = null;PrepareCommand(cmd, con, ref trans, false, cmd.CommandType, cmd.CommandText);try{reader = cmd.ExecuteReader(CommandBehavior.CloseConnection);reader.Read();}catch (Exception ex){throw ex;}foreach (PropertyInfo field in fieldinfos){int col=reader.GetOrdinal(field.Name);if (col != -1){Type mytype = reader.GetFieldType(col);entityType.GetProperty(field.Name).SetValue(entity, Convert.ChangeType(reader.GetValue(col), mytype), null);}else {continue;}}return entity;}public static List<T> ExecuteCollection<T>(SQLiteCommand cmd) {List<T> result = new List<T>();Type entityType = typeof(T);PropertyInfo[] fieldinfos = entityType.GetProperties();DbDataReader reader = null;if (conn == null || conn.Length == 0)throw new ArgumentNullException("connectionString");SQLiteConnection con = new SQLiteConnection(conn);SQLiteTransaction trans = null;PrepareCommand(cmd, con, ref trans, false, cmd.CommandType, cmd.CommandText);try{reader = cmd.ExecuteReader(CommandBehavior.CloseConnection);}catch (Exception ex){throw ex;}while (reader.Read()) {T entity = (T)Activator.CreateInstance(entityType);foreach (PropertyInfo field in fieldinfos){int col = reader.GetOrdinal(field.Name);if (col != -1){Type mytype = reader.GetFieldType(col);entityType.GetProperty(field.Name).SetValue(entity, Convert.ChangeType(reader.GetValue(col), mytype), null);}else{continue;}}result.Add(entity);}return result;}

轉載于:https://www.cnblogs.com/danye/archive/2012/06/30/2571173.html

總結

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