C# 将属性值转换为 yyyy-MM-dd hh:mm:ss tt 格式
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Convert the property value to yyyy-MM-dd hh:mm:ss tt format
提问by Vikas Kunte
i have a property in the following way to keep datetime information
我有一个以下列方式保存日期时间信息的属性
public string ExecutionTime{ get; set; }
public string ExecutionTime{ get; set; }
ExecutionTime value is set as dd-MM-yyyy hh:mm:ss tt
How can i change the property value to appear as yyyy-MM-dd hh:mm:ss ttand show in a textbox.
ExecutionTime 值设置为dd-MM-yyyy hh:mm:ss tt
如何更改属性值以yyyy-MM-dd hh:mm:ss tt在文本框中显示和显示。
采纳答案by ken2k
As your date is stored as string:
由于您的日期存储为string：
- Parse the string to get the actual
DateTime - Convert back to
stringwith different format
- 解析字符串以获取实际
DateTime - 转换回
string不同的格式
You'll need ParseExact:
你需要ParseExact：
// Your date
string inputDate = "20-01-2012 02:25:50 AM";
// Converts to dateTime
// Do note that the InvariantCulture is used, as I've specified
// AM as the "tt" part of the date in the above example
DateTime theDate = DateTime.ParseExact(inputDate, "dd-MM-yyyy hh:mm:ss tt", CultureInfo.InvariantCulture);
// Now get the string to be displayed
// I've also specified the Invariant (US) culture, you might want something else
string yourString = theDate.ToString("yyyy-MM-dd hh:mm:ss tt", CultureInfo.InvariantCulture);
But you really should store a date as DateTime, not string.
但是您确实应该将日期存储为DateTime，而不是string。
回答by Tim Schmelter
I wouldn't use a stringproperty. Instead i would store it as DateTimesince it actually seems to be one. You can format it howsoever you want when you display it.
我不会使用string财产。相反，我会将它存储为DateTime因为它实际上似乎是一个。您可以在显示时随意格式化它。
public DateTime ExecutionTime{ get; set; }
for example:
例如：
Textbox1.Text = ExecutionTime.ToString("yyyy-MM-dd hh:mm:ss tt");
Otherwise you always need to parse that string to a DateTimeand vice-versa and you might even run into localization issues (in future).
否则，您总是需要将该字符串解析为 a DateTime，反之亦然，您甚至可能会遇到本地化问题（将来）。
回答by spajce
DateTime d;
var isValid = DateTime.TryParse(ExecutionTime, out d);
if (isValid)
{
textBox1.Text = d.ToString("dd-MM-yyyy hh:mm:ss tt");
}
