如何在C＃中将1/1/1300日期转换为datetime值

Question

I have a scenario where i have date value like 1/1/1300 and i want to convert it to datetime object for comparison purposes. In Sql Server i use datetime2 for this date and it works perfect but i dont know how to convert it to datetime2 in C#? Im using .Net 4

Answer 1

You could use the ParseExact method:

DateTime date = DateTime.ParseExact("1/1/1300", "d/M/yyyy", CultureInfo.InvariantCulture);

or use TryParseExact if the date could be in a wrong format or represent an invalid date:

DateTime date;
if (DateTime.TryParseExact("1/1/1300", "d/M/yyyy", CultureInfo.InvariantCulture, DateTimeStyles.None, out date))
{
    // parsing was successful => you could use the date here
}

Answer 2

There is no DateTime2 in C#, just DateTime:

string dateString = "1/1/1300";
DateTime date = DateTime.Parse(dateString, CultureInfo.InvariantCulture);

Answer 3

If what you are looking for is converting datetime2 SQL data type to .NET data type, check this answer:

Conversion of a datetime2 data type to a datetime data type results out-of-range value

It seems to suggest that the type is same DateTime though, the snippet in the answer:

new DataColumn("myDate", typeof(DateTime))

I assume if you are using a DataReader, you can treat the value as DateTime also, or maybe a DateTimeOFfset if DateTime .

If you are using an ORM, it will depend on the ORM used. You might need to specify how you access your database if this still doesn't help.