如何使用ASP.NET MVC 5数据注释“DataType.Time？”仅在没有日期的情况下节省时间

Question

My Model Class looks like this:

 [DataType(DataType.Time)]
 public DateTime Time {get; set;}

When I run it, I have a cool an HTML 5 Input Type in Time. When I save the data, the value in my database looks like this:

 7/11/2014 1:00AM

It automatically saves the current date. I just wanna have the time saved. I'm trying to create a reservation system.

Answer 1

[DataType(DataType.Time)]
[DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:HH:mm}")]
public DateTime Hour { get; set; }

Answer 2

In that case you need to store that as a string. You cannot separate Time from Date using BCL (Base Class Library) of .Net. They cannot exist as independent entities.

However youcan have a workaround to save Time in a TimeSpan object using this Representing Time (not date and time) in C#

Answer 3

Similar question gives a series of answers you might like, How do I represent a time only value in .NET? but the

However the overriding question is what type you should set the time to in your db, and this question Best way to store time (hh:mm) in a database gives more

The following will give you a string representation from your DateTime, but read the other questions and answers, and you might want to save in a format other than string to make it easier to evaluate queries...

DateTime.Now.ToString("t");

Answer 4

[DisplayFormat(DataFormatString = "{0:t}")]
public DateTime Time {get; set;}

will display only the time

For reference Follow :

MSDN Reference

Answer 5

只需将数据类型更改为数据库中的字符串，即可节省时间。