使用DateTime.Now插入值时，SqlDateTime溢出 [英] SqlDateTime overflow when inserting value with DateTime.Now

问题描述

最近我在尝试执行db.SubmitChanges()时遇到了很奇怪的错误:

Lately I have quite odd error while trying to do db.SubmitChanges():

SqlDateTime溢出.必须在1/1/1753 12:00:00 AM和12/31/9999 11:59:59 PM之间.

SqlDateTime overflow. Must be between 1/1/1753 12:00:00 AM and 12/31/9999 11:59:59 PM.

关键是，我只使用DateTime.Now设置对象的属性，并且在调用Response.Write(DateTime.Now.ToString());之后，它会显示17-04-2013 18:03:13.

The point is, I only use DateTime.Now to set property in my object, and after calling Response.Write(DateTime.Now.ToString()); it shows 17-04-2013 18:03:13 as it should be.

这不是以前发生的事情，现在该功能始终会中断.我完全一无所知-我的SQL Server上的日期似乎还可以.

It was not happening earlier, and now the function always breaks. I'm completely clueless - date on my SQL server seems to be ok.

可能是什么原因造成的?

What may cause it?

修改

我认为这没有帮助(太简单了，IMO中没有任何错误)，但是有我的功能:

I don't think it would help (it just too simple to have any errors IMO), but there's my function:

public bool ReportLogIn(int UserID, string IP, int Succeed ... ) {
    A_UserLoginHistory Report = new A_UserLoginHistory();

    Report.IP = IP;
    Report.UserID = UserID;
    Report.Status = Succeed;
    Report.Date = DateTime.Now; //the only DateTime field
    ...

    try {
        db.A_UserLoginRegistry.InsertOnSubmit(Report);
        db.SubmitChanges();
        return true;
    } catch (Exception e) {
        ErrorLog.AddError(e.ToString());
        return false;
    }
}

推荐答案

实际上问题是SQL DateTime =/= C# Datetime

actually the problem is SQL DateTime =/= C# Datetime

您需要更改2件事

• 数据库将字段类型从DateTime更改为DateTime2

查询您需要明确

SqlCommand cmd = new SqlCommand("insertsomeDate", conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add("@newDate", SqlDbType.DateTime2).Value = yourDate; //<- as example

您可以在此处，此处

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