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C# DateTime.FromBinary()用法及代码示例


DateTime.FromBinary(Int64)方法用于反序列化64位二进制值,并重新创建原始的序列化DateTime对象。

用法: public static DateTime FromBinary (long dateData);
Here, it takes a 64-bit signed integer that encodes the Kind property in a 2-bit field and the Ticks property in a 62-bit field.

返回值:此方法返回与ToBinary()方法序列化的DateTime对象等效的对象。


异常:如果dateData小于MinValue或大于MaxValue,则此方法将提供ArgumentException。

以下示例程序旨在说明DateTime.FromBinary(Int64)方法的用法:

示例1:

// C# program to demonstrate the 
// DateTime.FromBinary(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, 1, 1, 
                                           8, 0, 15); 
  
            // getting a 64-bit signed integer 
            // using ToBinary() method 
            long binLocal = date1.ToBinary(); 
  
            // cnverting 64-bit into DateTime format 
            // using FromBinary() method 
            DateTime date2 = DateTime.FromBinary(binLocal); 
  
            // 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 January 01

DateTime after operation: 2010 January 01

示例2:对于ArgumentOutOfRangeException

// C# program to demonstrate the 
// DateTime.FromBinary() Method 
using System; 
using System.Globalization; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
        try { 
  
            // converting 64-bit into DateTime format 
            // using FromBinary() method 
            DateTime date = DateTime.FromBinary(-100000000000000000); 
  
            // Display the date 
            System.Console.WriteLine("\nDateTime: + {0:y} {0:dd} ", date); 
        } 
  
        catch (ArgumentException e)  
        { 
            Console.WriteLine("The resulting dateData"
                     + " is less than the MinValue "); 
  
            Console.Write("Exception Thrown: "); 
            Console.Write("{0}", e.GetType(), e.Message); 
        } 
    } 
}

输出:

The resulting dateData is less than the MinValue 
Exception Thrown: System.ArgumentException

参考:



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注:本文由纯净天空筛选整理自RohitPrasad3大神的英文原创作品 DateTime.FromBinary() 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。