如何在C＃中执行Convert.ToDateTime或解析日期，但在C＃2.0中仅获得dd / mm / yyyy？

Question

As topic says, I have a string like

string CreatedDate = "12/09/2010"

and I want to pass it to a web method that only accepts it as DateTime

customer.dateCreated = Convert.ToDateTime(CreatedDate);

naturally it add hh:mm:ss after the date which the web service doesn't accept so how can I keep the date in the short format when I convert it to a date?

Thanks in advance

Answer 1

A DateTime value doesn't know anything its formatting (and indeed it shouldn't ). It sounds like your web service is broken if it's not accepting standard date/time formatting. What's the implementation of the web service? Is "customer" an autogenerated proxy class?

Answer 2

DateTime具有.Date属性，该属性会剥离时间信息。

Answer 3

Assuming you have:

void WebMethod(DateTime date);

and

string dateString = "12/09/2010";

then do next:

DateTime date;
if (DateTime.TryParseExact(dateString, "dd/MM/yyyy", CultureInfo.InvariantCulture, DateTimeStyles.None, out date))
{
    WebMethod(date);
}
else
{
    // raise an error - specified date is not in specified format
}

Note:

date.Hour // 0
date.Minute // 0
date.Seconds // 0

---

Otherwise, if you have DateTime object and WebMethod(string date) where date should be in specified format, then:

DateTime date = ..;
WebMethod(date.ToString("dd/MM/yyyy"));

Answer 4

Does the WebService accept the date as only "12/09/2010"? Typically a webservice should follow the reccomendations here XML Schema Part 2: Datatypes Second Edition

Which is UTC format. Using:

DateTime.ParseExact(value, "ddd MMM dd HH:mm:ss zz00 yyyy", null);

solves the problem most times.