C# DateTimeOffset.ToOffset()用法及代碼示例

DateTimeOffset.ToOffset(TimeSpan)方法用於將當前DateTimeOffset對象的值轉換為由偏移值指定的日期和時間。

用法： public DateTimeOffset ToOffset (TimeSpan offset);

Here, it takes the offset to convert the DateTimeOffset value to.

返回值：此方法返回一個與原始DateTimeOffset對象相等的對象(即，它們的ToUniversalTime()方法返回相同的時間點)，但其Offset屬性設置為offset。

異常：

ArgumentException如果生成的DateTimeOffset對象的DateTime值早於MinValue。或者生成的DateTimeOffset對象的DateTime值晚於MaxValue。
ArgumentOutOfRangeException如果偏移量小於-14小時。或偏移量大於14小時。

以下示例程序旨在說明DateTimeOffset.ToOffset()方法的使用：

示例1:

// C# program to demonstrate the 
// DateTimeOffset.ToOffset(TimeSpan) 
// Method 
using System; 
using System.Globalization; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
        try { 
  
            // creating object of  DateTimeOffset 
            DateTimeOffset offset = new DateTimeOffset(2007, 
                    6, 1, 7, 55, 0, new TimeSpan(-5, 0, 0)); 
  
            // Converts the value of  
            // the current DateTimeOffset 
            // object to the date and time  
            // specified by an offset value. 
            // instance using ToOffset() method 
            DateTimeOffset value = offset.ToOffset(new TimeSpan(-5, 1, 0)); 
  
            // Display the time 
            Console.WriteLine("DateTimeOffset is {0}", value); 
        } 
  
        catch (ArgumentOutOfRangeException e)  
        { 
            Console.Write("Exception Thrown: "); 
            Console.Write("{0}", e.GetType(), e.Message); 
        } 
  
        catch (ArgumentException e)  
        { 
            Console.Write("Exception Thrown: "); 
            Console.Write("{0}", e.GetType(), e.Message); 
        } 
    } 
}

輸出：

DateTimeOffset is 06/01/2007 07:56:00 -04:59

示例2:對於ArgumentOutOfRangeException

// C# program to demonstrate the 
// DateTimeOffset.ToOffset(TimeSpan) 
// Method 
using System; 
using System.Globalization; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
        try { 
  
            // creating object of  DateTimeOffset 
            DateTimeOffset offset = DateTimeOffset.MaxValue; 
  
            // Converts the value of the 
            // current DateTimeOffset 
            // object to the date and time  
            // specified by an offset value. 
            // instance using ToOffset() method 
            DateTimeOffset value = offset.ToOffset(new TimeSpan(5, 1, 0)); 
  
            // Display the time 
            Console.WriteLine("DateTimeOffset is {0}", value); 
        } 
  
        catch (ArgumentOutOfRangeException e)  
        { 
            Console.Write("Exception Thrown: "); 
            Console.Write("{0}", e.GetType(), e.Message); 
        } 
  
        catch (ArgumentException e)  
        { 
            Console.Write("Exception Thrown: "); 
            Console.Write("{0}", e.GetType(), e.Message); 
        } 
    } 
}

輸出：

Exception Thrown: System.ArgumentOutOfRangeException

參考：

https://docs.microsoft.com/en-us/dotnet/api/system.datetimeoffset.tooffset?view=netframework-4.7.2

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注：本文由純淨天空篩選整理自RohitPrasad3大神的英文原創作品 DateTimeOffset.ToOffset() Method in C#。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。