How to Choose the Best Method for Parsing Strings into DateTime Objects in C#?

C# Datetime Analysis: Comprehensive Guide

When processing the string of the date and time, C# provides a series of parsing methods to convert them to System.detime objects.

datetime.parse ()

Datetime.parse () is a multi -functional method that tries to automatically detect the format of the input string. It combines knowledge -specific knowledge and common date format for speculation. This method is convenient when the date format is not clear or easy to change.

Example:

datetime.parsexact ()

string s = "2011-03-21 13:26";
DateTime dt = DateTime.Parse(s);

For the consistency of the date format, DateTime.parsexact () provides more accurate and customized analysis options. It allows specify a specific format string that defines how to explain the input string.

Example: <>

However, it is worth noting that using PARSEEEXACT () needs to strictly adhere to the specified format. If the input string deviates from the definition format, it will cause abnormalities.

<定> Custom date and time format string

string s = "2011-03-21 13:26";

DateTime dt = 
    DateTime.ParseExact(s, "yyyy-MM-dd HH:mm", CultureInfo.InvariantCulture);

When constructing a strings for the PARSEEEXACT () constructor, be sure to refer to the custom date and time format string document. It provides guidelines for the number of letters and lowercases used in different format descriptions (for example, "MM" and "MM" in minutes).

Tryparse method

In the case of possible invalid date string, it is recommended to use one of the TryParse methods. These methods return a Boolean value to indicate whether the analysis is successful without causing abnormalities.

Example:

Select the correct method

The best analysis method depends on the specific requirements of the application. If the date format is flexible and may be different, datetime.parse () is a suitable choice. If the format is consistent and the accuracy is very important, datetime.parsexact () provides more control over the analysis process.

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