DateTime.FromFileTime(Int64)方法用于将指定的Windows文件时间转换为等效的本地时间。
用法： public static DateTime FromFileTime (long fileTime);
Here, it takes a Windows file time expressed in ticks.
返回值：此方法返回一个对象，该对象表示与fileTime参数表示的日期和时间等效的本地时间。
异常：如果fileTime小于0或表示时间大于MaxValue，则此方法将提供ArgumentOutOfRangeException。
以下示例程序旨在说明DateTime.FromFileTime(Int64)方法的用法：
示例1:
// C# program to demonstrate the
// DateTime.FromFileTime(Int64) Method
using System;
using System.Globalization;
class GFG {
// Main Method
public static void Main()
{
try {
// creating object of DateTime
DateTime date1 = new DateTime(2010, 3, 14, 2, 30, 00);
// converting 2500000000000 file
// time represented in ticks
// into DateTime format
// using FromBinary() method
DateTime date2 = DateTime.FromFileTime(2500000000000);
// Display the date1
System.Console.WriteLine("DateTime before "
+ "operation: {0:y} {0:dd}", date1);
// Display the date2
System.Console.WriteLine("\nDateTime after"
+ " operation: {0:y} {0:dd}", date2);
}
catch (ArgumentOutOfRangeException e)
{
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
}
}
输出：
DateTime before operation: 2010 March 14 DateTime after operation: 1601 January 03
示例2:对于ArgumentOutOfRangeException
// C# program to demonstrate the
// DateTime.FromFileTime() Method
using System;
using System.Globalization;
class GFG {
// Main Method
public static void Main()
{
try {
// creating object of DateTime
DateTime date1 = new DateTime(2010, 3,
14, 2, 30, 00);
// converting -1 file time
// represented in ticks
// into DateTime format
// using FromBinary() method
DateTime date2 = DateTime.FromFileTime(-1);
// Display the date1
System.Console.WriteLine("DateTime before "
+ "operation: {0:y} {0:dd}",date1);
// Display the date2
System.Console.WriteLine("\nDateTime after"
+ " operation: {0:y} {0:dd}", date2);
}
catch (ArgumentOutOfRangeException e) {
Console.WriteLine("fileTime is less than 0 ");
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
}
}
输出：
fileTime is less than 0 Exception Thrown: System.ArgumentOutOfRangeException
参考：
相关用法
注：本文由纯净天空筛选整理自RohitPrasad3大神的英文原创作品 DateTime.FromFileTime() Method in C#。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。