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我已经创建了一个软件来从Oracle数据库读取数据通过短信发送它,但我想停止datareader读取时,当我敲键盘上的C键,但是当我这样做时,我得到这个异常消息:如何停止从读取oracledatareader
Operation is not valid due to the current state of the object
堆栈跟踪:
at Oracle.DataAccess.Client.OracleDataReader.Read()
at Test_SMS_AT_Command.Program.OnTimer(Object obj, EventArgs args)
,这我的代码:
oraCommand.ExecuteNonQuery();
OracleDataAdapter oraDataAdapter = new OracleDataAdapter(oraCommand);
Oracle.DataAccess.Types.OracleRefCursor refCursor = (Oracle.DataAccess.Types.OracleRefCursor)oraParameter.Value;
OracleDataReader reader = refCursor.GetDataReader();
while (reader.Read())
{
if (cki.Key == ConsoleKey.C)
{
cancel();
if (reader != null)
{
reader.Close(); //Closed
}
break;
}
if (sms.sendSms(reader["MOBILE_NO"].ToString(), reader["TEXT"].ToString()))
{
Console.WriteLine("Message successfully sent to " + reader["MOBILE_NO"].ToString() + ": " + DateTime.Now);
setStatus(Convert.ToInt32(reader["GORANNET_SMS_ID"]));
writeToFile(reader["TEXT"] + " sent to " + reader["MOBILE_NO"] + " at: " + DateTime.Now);
}
else
{
Console.WriteLine("Message was not sent");
}
System.Threading.Thread.Sleep(15000);
}
谢谢你
缺少Command对象上的连接吗? –
不,我没有错过读者正在完美工作的任何事情,但是我想在键盘上的C键时阻止读者进一步阅读 – danarj