将 OracleParameter.Value 转换为 Int32 [英] Convert OracleParameter.Value to Int32

问题描述

我有一个这样的存储过程调用:

I have a stored procedure call that goes like this:

using (OracleConnection con = new OracleConnection(ConfigurationManager.AppSettings["Database"]))
using (OracleCommand cmd = new OracleCommand("Package.Procedure", con))
{
   Int32 existsCount;

   cmd.CommandType = CommandType.StoredProcedure;
   cmd.Parameters.Add("successCount", OracleDbType.Int32, 0, ParameterDirection.InputOutput);
   cmd.Parameters.Add("BusinessId", OracleDbType.Int64, listRec.BusinessId, ParameterDirection.Input);

    con.Open();
    cmd.ExecuteScalar();
    con.Close();

    existsCount = Convert.ToInt32(cmd.Parameters["successCount"].Value);

    return (existsCount);
}

但在这一行:

existsCount = Convert.ToInt32(cmd.Parameters["successCount"].Value);

它抛出异常无法将类型'Oracle.DataAccess.Types.OracleDecimal'的对象转换为类型'System.IConvertible'."

It throws the Exception "Unable to cast object of type 'Oracle.DataAccess.Types.OracleDecimal' to type 'System.IConvertible'."

有什么想法吗?谢谢.

推荐答案

怎么样

existsCount = int.Parse(cmd.Parameters["successCount"].Value.ToString());

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