此方法用于将当前DateTime对象的值转换为Windows文件时间。
Syntax: public long ToFileTime ();
Return Value: This method returns the value of the current DateTime object expressed as a Windows file time.
Exception: This method will give ArgumentOutOfRangeException if the resulting file time would represent a date and time before 12:00 midnight January 1, 1601 C.E. UTC.
下面的程序说明了DateTime.ToFileTime()方法的用法:
范例1:
// C# program to demonstrate the
// DateTime.ToFileTime()
// Method
using System;
using System.Globalization;
class GFG {
// Main Method
public static void Main()
{
try {
// creating object of DateTime
DateTime date = new DateTime(2011, 1,
1, 4, 0, 15);
// converting current DateTime
// object to a Windows file time.
// using ToFileTime() method;
long value = date.ToFileTime();
// Display the TimeSpan
Console.WriteLine("Windows file time "+
"is {0}", value);
}
catch (ArgumentOutOfRangeException e)
{
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
}
}
输出:
Windows file time is 129383280150000000
示例2:对于ArgumentOutOfRangeException
// C# program to demonstrate the
// DateTime.ToFileTime()
// Method
using System;
using System.Globalization;
class GFG {
// Main Method
public static void Main()
{
try {
// creating object of DateTime
DateTime date = new DateTime(1600, 1,
1, 4, 0, 15);
// converting current DateTime
// object to a Windows file time.
// using ToFileTime() method;
long value = date.ToFileTime();
// Display the TimeSpan
Console.WriteLine("Windows file time"+
" is {0}", value);
}
catch (ArgumentOutOfRangeException e)
{
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
}
}
输出:
Exception Thrown: System.ArgumentOutOfRangeException
参考:
- https://docs.microsoft.com/zh-cn/dotnet/api/system.datetime.tofiletime?view=netframework-4.7.2