我传递参数的过程说我缺少@accountNumber,字典键。我有两种使用相同代码的方法。一个工作,一个不工作。这两个程序也以同样的方式宣布,所以我不知所措。
修改:原来我在方法中遗漏了comm.CommandType = CommandType.StoredProcedure;
。
程序:
CREATE PROCEDURE [dbo].[updateNumbers_StatementDB]
(
@accountNumber varchar(50),
@accountType char(4),
@padding varchar(50),
@proc_dateStart datetime,
@proc_dateEnd datetime
)
调用updateNumbers_StatementDB的方法:
using (SqlCommand comm = new SqlCommand("updateNumbers_StatementDB", osql))
{
strMsg = "Statement DB";
_newLog.LogIt(strMsg);
foreach (KeyValuePair<string, string> item in dt)
{ //problem parameter
var param = comm.Parameters.AddWithValue("@accountNumber", item.Key);
//item.key shows up in logging as 1020, what I set it as.
strMsg = "item key: " + item.Key;
_newLog.LogIt(strMsg);
var accountTypeParam = comm.Parameters.AddWithValue("@accountType", item.Value);
strMsg = "item value: " + item.Value;
_newLog.LogIt(strMsg);
var paddingParam = comm.Parameters.AddWithValue("@padding", padding);
var dateStartParam = comm.Parameters.AddWithValue("@proc_dateStart", startDate);
var dateEndParam = comm.Parameters.AddWithValue("@proc_dateEnd", endDate);
var reader = comm.ExecuteNonQuery(); //or NonQuery, etc.
strMsg = "Statement query executed at least once";
_newLog.LogIt(strMsg);
}
}
添加其他有效的方法:
using (SqlCommand comm = new SqlCommand("updateNumbers_ArchiveDB", osql))
{
comm.CommandType = CommandType.StoredProcedure;
foreach (KeyValuePair<string, string> item in dt)
{
var param = comm.Parameters.AddWithValue("@accountNumber", item.Key);
strMsg = "item key: " + item.Key;
_newLog.LogIt(strMsg);
var accountTypeParam = comm.Parameters.AddWithValue("@accountType", item.Value);
strMsg = "item value: " + item.Value;
_newLog.LogIt(strMsg);
var paddingParam = comm.Parameters.AddWithValue("@padding", padding);
var dateStartParam = comm.Parameters.AddWithValue("@proc_dateStart", startDate);
var dateEndParam = comm.Parameters.AddWithValue("@proc_dateEnd", endDate);
strMsg = "Getting to the bottom of the foreach loop";
_newLog.LogIt(strMsg);
var reader = comm.ExecuteNonQuery(); //or NonQuery, etc.
strMsg = "Query executed at least once";
_newLog.LogIt(strMsg);
}
}
程序:
CREATE PROCEDURE [dbo].[updateNumbers_ArchiveDB]
(
@accountNumber varchar(50),
@accountType char(4),
@padding varchar(50),
@proc_dateStart datetime,
@proc_dateEnd datetime
)
通常,当您的变量为null时会发生此错误。但是,在这种情况下,我的日志记录显示变量具有值。关于为什么我的程序没有看到价值的任何想法?
答案 0 :(得分:3)
在第一种方法中缺少comm.CommandType = CommandType.StoredProcedure;
。