[英]Insert date to database in c#
我发现很多关于这个问题的问题,我尝试了一切,但还没有成功。
我需要将日期传递给我的SQL Server数据库。 我的代码如下:
public bool CreatePatient()
{
IDbConnection connection = database.CreateOpenConnection();
IDbTransaction transaction = database.BeginTransaction(connection);
try
{
GenerateRegNo();
SQL_STATEMENT = "INSERT INTO TblPatientRegistration(RegistrationNo, HospitalID, NIC, AdmitDate, BHTNo, WardNo)
VALUES(@RegNo, @HospiatlNo, @NIC, @Admitdate, @BHTNo, @WardNo)";
IDbCommand com = database.CreateCommandTransaction(SQL_STATEMENT, connection, transaction);
com.Parameters.Add(database.CreateParameter("@RegNo", PatientRegistration.RegistrationNo));
com.Parameters.Add(database.CreateParameter("@HospiatlNo", PatientRegistration.HospitalID));
com.Parameters.Add(database.CreateParameter("@NIC", PatientRegistration.NIC));
com.Parameters.Add(database.CreateParameter("@Admitdate", PatientRegistration.AdmitDate));
com.Parameters.Add(database.CreateParameter("@BHTNo", PatientRegistration.BHTNo));
com.Parameters.Add(database.CreateParameter("@WardNo", PatientRegistration.WardNo));
if (com.ExecuteNonQuery() > 0)
{
string updStatement = "Update TblControl set RegNo=RegNo+1";
IDbCommand com2 = database.CreateCommandTransaction(updStatement, connection, transaction);
com2.ExecuteNonQuery();
transaction.Commit();
return true;
}
else
{
transaction.Rollback();
return false;
}
}
catch (Exception)
{
transaction.Rollback();
return false;
}
}
我尝试过的:
如上所述链接
com.Parameters.Add(database.CreateParameter("@Admitdate", PatientRegistration.AdmitDate.ToString("dd/MM/yyyy")));
和这个链接
com.Parameters.Add(database.CreateParameter("@Admitdate", "'"+PatientRegistration.AdmitDate+"'"));
然后我尝试了这个链接
String UrDate = PatientRegistration.AdmitDate.ToString("dd/MM/yyyy");
System.Globalization.DateTimeFormatInfo dateInfo = new System.Globalization.DateTimeFormatInfo();
dateInfo.ShortDatePattern = "dd/MM/yyyy";
DateTime validDate = Convert.ToDateTime(UrDate, dateInfo);
com.Parameters.Add(database.CreateParameter("@Admitdate", validDate));
这些方法抛出此异常:
操作数类型冲突:int与日期不兼容
我从以下时间收到PatientRegistration.AdmitDate
价值是: {2/25/2013 12:00:00 AM}
我试过这些所有方法但无法保存它。 请帮我解决这里的问题。
谢谢...
编辑:
我的数据库架构:
CREATE TABLE [dbo].[TblPatientRegistration](
[RegistrationNo] [char](10) NOT NULL,
[HospitalID] [char](10) NOT NULL,
[NIC] [char](10) NOT NULL,
[AdmitDate] [date] NOT NULL,
[BHTNo] [varchar](10) NOT NULL,
[WardNo] [varchar](10) NOT NULL,
[ReleaseDate] [date] NOT NULL,
CONSTRAINT [PK_TblPatientRegistration_1] PRIMARY KEY CLUSTERED
(
[RegistrationNo] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
这个问题可能已经有了答案(密切投票): - >我尝试了那里建议的答案(见选项2),但它似乎无法解决我的问题
答:经过多次调查,我发现由于数据库中的错误而发生此问题。
我没有将值传递给ReleaseDate字段,它在数据库中设置为default value
。 该默认值是与日期不兼容的值。 这就是造成这个问题的原因。 任何我如何能够传递我的价值,如Ashok kumar所述
我只修改了@Admitdate行的代码。
public bool CreatePatient()
{
IDbConnection connection = database.CreateOpenConnection();
IDbTransaction transaction = database.BeginTransaction(connection);
try
{
GenerateRegNo();
SQL_STATEMENT = "INSERT INTO TblPatientRegistration(RegistrationNo, HospitalID, NIC, AdmitDate, BHTNo, WardNo)
VALUES(@RegNo, @HospiatlNo, @NIC, @Admitdate, @BHTNo, @WardNo)";
IDbCommand com = database.CreateCommandTransaction(SQL_STATEMENT, connection, transaction);
com.Parameters.Add(database.CreateParameter("@RegNo", PatientRegistration.RegistrationNo));
com.Parameters.Add(database.CreateParameter("@HospiatlNo", PatientRegistration.HospitalID));
com.Parameters.Add(database.CreateParameter("@NIC", PatientRegistration.NIC));
String admitDate = txtAdmitDate.Text;
DateTime parsedAdmitDate;
if (DateTime.TryParseExact(admitDate, "d/M/y", CultureInfo.InvariantCulture, DateTimeStyles.None, out parsedAdmitDate))
PatientRegistration.AdmitDate = parsedAdmitDate;
//com.Parameters.Add(database.CreateParameter("@Admitdate", PatientRegistration.AdmitDate));
com.Parameters.Add(database.CreateParameter("@BHTNo", PatientRegistration.BHTNo));
com.Parameters.Add(database.CreateParameter("@WardNo", PatientRegistration.WardNo));
if (com.ExecuteNonQuery() > 0)
{
string updStatement = "Update TblControl set RegNo=RegNo+1";
IDbCommand com2 = database.CreateCommandTransaction(updStatement, connection, transaction);
com2.ExecuteNonQuery();
transaction.Commit();
return true;
}
else
{
transaction.Rollback();
return false;
}
}
catch (Exception)
{
transaction.Rollback();
return false;
}
}
如果您需要更多帮助,请告诉我。
Database表列的数据类型是Date
,可以尝试DateTime
还是datetime2
。
并且不要将Date变量括在引号中:
com.Parameters.Add(database.CreateParameter("@Admitdate",PatientRegistration.AdmitDate))
command.Parameters.AddWithValue("@yourDateTimeVariable", dateTimeObject);
????
cmd.Parameters.AddWithValue("@DATE", DateTime.Now);
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