OLEDB将行插入到已替换的表中

我正在尝试使用OLEDB替换Excel 2007中的表。

首先我执行命令"删除表"，然后"创建表"，它工作得很好。

但是如果我现在想要插入数据("INSERT INTO")到这个表中，它会失败。OleDbCommand.ExecuteNonQuery()没有错误或异常，最后事务提交成功，数据库为空。

知道为什么吗?

connection.Open();
string access_com = "DROP TABLE " + globalPrefix + prefix + TableName;
OleDbCommand execute = new OleDbCommand(access_com, connection);
try
{
  execute.ExecuteNonQuery();
}
catch (Exception ex)
{
  ConfigDataSet.Log.AddLogRow("The program cannot drop table you want. Close the file with it and run program again!", 1);
  return 1;
}
access_com = "CREATE TABLE [" + globalPrefix + prefix + TableName + "]" + fieldString + ")";// CONSTRAINT PK" + TableName + " PRIMARY KEY " + primaryKey + ")";
execute.CommandText = access_com;
execute.ExecuteNonQuery();
OleDbTransaction transaction = connection.BeginTransaction();
access_com = "INSERT INTO " + TableName + "( " + allfields + ")" + " VALUES (" + parametersString + ")";
OleDbCommand execute = new OleDbCommand(access_com, connection);
execute.Transaction = transaction;
try
{
  execute.ExecuteNonQuery();
  execute.Parameters.Clear();
}
catch (OleDbException ex)
{
  ConfigDataSet.Log.AddLogRow("Inserting row failed: ", 2);
  failedInsertions++;
}

execute.ExecuteNonQuery();
transaction.Commit();