DateTimeOffset。C# 中的 AddDays()方法

原文:https://www . geesforgeks . org/datetime offset-adddays-method-in-c-sharp/

此方法用于返回一个新的 DateTimeOffset 对象,该对象将指定天数的整数和小数添加到此实例的值中。

语法: public DateTimeOffset AddDays(双天); 这里,需要若干个整数和小数的日子。

返回值:该方法返回一个对象,其值为当前 DateTimeOffset 对象表示的日期和时间与天数表示的天数之和。

异常:如果结果日期时间偏移值小于最小值或结果日期时间偏移值大于最大值,该方法将给出argumentoutofrangerexception

以下程序说明了日期时间偏移的使用。添加天数(双倍)方法:

例 1:

// C# program to demonstrate the
// DateTimeOffset.AddDays(Double)
// 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));

            // adding a specified number of whole 
            // and fractional days to the value 
            // of this instance using AddDays(Double) 
            // method
            DateTimeOffset value = offset.AddDays(10);

            // Display the time
            Console.WriteLine("DateTimeOffset is {0}", value);
        }

        catch (ArgumentOutOfRangeException e) {
            Console.Write("Exception Thrown: ");
            Console.Write("{0}", e.GetType(), e.Message);
        }
    }
}

Output:

DateTimeOffset is 06/11/2007 07:55:00 -05:00

例 2:argumentout of range exception

// C# program to demonstrate the
// DateTimeOffset.AddDays(Double)
// Method
using System;
using System.Globalization;

class GFG {

    // Main Method
    public static void Main()
    {
        try {

            // creating object of  DateTimeOffset
            DateTimeOffset offset = DateTimeOffset.MaxValue;

            // adding a specified number of whole and
            // fractional days to the value of this instance.
            // using AddDays(Double) method;
            DateTimeOffset value = offset.AddDays(10);

            // Display the time
            Console.WriteLine("DateTimeOffset is {0}", value);
        }

        catch (ArgumentOutOfRangeException e) {
            Console.Write("Exception Thrown: ");
            Console.Write("{0}", e.GetType(), e.Message);
        }
    }
}

Output:

Exception Thrown: System.ArgumentOutOfRangeException

参考: