如何从c＃中的变量中获取日期 [英] How to get date from a variable in c#

问题描述

朋友，

我想从变量中获取日期，但是当它为我返回值时，没有真正的形式。

  public   static 列表< business> ContactSelectAll（）
 {
 DataTable dtb = DataAccess.ContactSelectAll（）; 
列表< business> result =  new 列表< business>（）; 
  foreach （DataRow记录在 dtb.Rows）
 {
 Business bus =  new  Business（）; 
 bus.Id = Convert.ToInt32（record [  Id]）; 
 bus.Name = Convert.ToString（record [  Name]）; 
 bus.Family = Convert.ToString（record [  Family]）; 
 bus.Address = Convert.ToString（record [  Address1]）; 
 bus.PhoneNumber = Convert.ToString（record [  PhoneNumber]）; 
 
   DateTime birth =  new  DateTime（）; 
   bus.BirthDate = Convert.ToString（birth.Date.ToString（  d /月/年））; 
 
 bus.EmailAddress = Convert.ToString（record [  EmailAddress] ）; 
 bus.FacebookAddress = Convert.ToString（record [  Facebook]）; 
 
 result.Add（bus）; 
} 
 返回结果; 
} 
 

解决方案

DateTime.ToString方法区分大小写：MM与mm。

第一个是月，前导零，第二个是前导零的分钟。

如果你想要日期，你需要看看ThePhantomUpvoter所说的内容，并将你的d / mm / yyyy改为dd / MM / yyyy



这里有一个格式代码列表可能有所帮助：格式化日期时间以显示 - 格式字符串说明 [ ^ ]

Convert.ToDateTime（birth.Date）的ToString（ DD / MM / YYYY））;

使用喜欢这个



DateTime birth = DateTime.Today;

bus.BirthDate = birth.ToString（D d /毫米/ YYYY）;

Hi friend,
I wan to get date from a variable but when it return value for me, doesn't have a true form.

public static List<business> ContactSelectAll()
       {
           DataTable dtb = DataAccess.ContactSelectAll();
           List<business> result = new List<business>();
           foreach (DataRow record in dtb.Rows)
           {
               Business bus = new Business();
               bus.Id = Convert.ToInt32(record["Id"]);
               bus.Name = Convert.ToString(record["Name"]);
               bus.Family = Convert.ToString(record["Family"]);
               bus.Address = Convert.ToString(record["Address1"]);
               bus.PhoneNumber = Convert.ToString(record["PhoneNumber"]);

               DateTime birth = new DateTime();
               bus.BirthDate = Convert.ToString(birth.Date.ToString("d/mm/yyyy"));

               bus.EmailAddress = Convert.ToString(record["EmailAddress"]);
               bus.FacebookAddress = Convert.ToString(record["Facebook"]);

               result.Add(bus);
           }
           return result;
       }

解决方案

The DateTime.ToString method is case sensitive: "MM" is not the same as "mm".
The first one is the Month, with a leading zero, the second is the minute with a leading zero.
If you want the date, you need to look at what ThePhantomUpvoter said, and change your "d/mm/yyyy" to "dd/MM/yyyy"

There is a list of format codes here which might help: Formatting a DateTime for display - format string description[^]

Convert.ToDateTime(birth.Date).ToString("dd/MM/yyyy"));

Use like this

DateTime birth = DateTime.Today;
bus.BirthDate = birth.ToString("DD/mm/YYYY");

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