英文:
With DateTime/DateOnly how can I determine 4th day of the month?
问题
我想要使用MassTransit来安排发送一条消息，它接受一个DateTime对象。
如何在特定时间确定每月的第4天？
我最初认为new DateTime(DateTime.Now.Year, DateTime.Now.Month + 1, 4)可以工作，但如果你在十二月会怎么样？你需要检查月份是否为12，然后将年份值加1。
这样做是否优雅？
英文:
I want to schedule sending a message with MassTransit and it accepts a DateTime object.
How can I say at a given point in time determine the 4th day of the month.
I initially thought new DateTime(DateTime.Now.Year, DateTime.Now.Month + 1, 4) could work but what if you're in December? You'd have to check the month was 12 and then add 1 to the year value.
Is this an elegant way to do this?
答案1
得分: 2
不是最佳的方法，但你可以使用.AddMonth(1) 重载来解决年份问题
var date = DateTime.UtcNow;
DateTime fourthDay;
if(date.Day > 4)
{
var nextMonth = date.AddMonths(1);
fourthDay = new DateTime(nextMonth.Year, nextMonth.Month, 4);
}
else
{
fourthDay = new DateTime(date.Year, date.Month, 4);
}
英文:
Not the greatest way, but you could use the .AddMonth(1) overload to get around the year problem
var date = DateTime.UtcNow;
DateTime fourthDay;
if(date.Day > 4)
{
var nextMonth = date.AddMonth(1);
fourthDay = new DateTime(nextMonth.Year, nextMonth.Month, 4);
}
else
{
fourthDay = new DateTime(date.Year, date.Month, 4);
}
</details>
# 答案2
**得分**: 0
使用 `AddMonths()` 如何？
DateTime nextMonth = DateTime.Today.AddMonths(1);
DateTime result = new DateTime(nextMonth.Year, nextMonth.Month, 4);
<details>
<summary>英文:</summary>
how about using `AddMonths()`
DateTime nextMonth = DateTime.Today.AddMonths(1);
DateTime result = new DateTime(nextMonth.Year, nextMonth.Month, 4);
</details>
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