CODEWITHSUNDEEP
c#winformsdatetimepicker
Serena
Serena

Reputation: 125

Decrement DateTimePicker day value with customized time

I want to decrement the day in DateTimePicker when button is clicked and keep the customized time at 10:00:00.

When I use the following code and when going back from month to another (previous month on the same year) it works fine.

but the problem comes when I try to go back from 2016 to 2015. For example when I try to go back from 1-1-2016 to 31-12-2015 it gives error: "Year, Month, and Day parameters describe an un-representable DateTime" 

dateTimePicker1.Value = new DateTime(dateTimePicker1.Value.Year, dateTimePicker1.Value.Month, dateTimePicker1.Value.Day - 1, 10, 00, 0);

Anyone knows how can I decrease the day and keep customized time when going back from year to another (previous year)? please help. Thank you

Upvotes: 0

Views: 255

Answers (1)

ASh
ASh

Reputation: 35679

dateTimePicker1.Value is a DateTime and DateTime has methods to modify dates and times correctly

dateTimePicker1.Value = dateTimePicker1.Value.Date.AddDays(-1).AddHours(10);

It takes current date [midnight], calculates previous date [still midnight] and adds 10 hours [morning]

Upvotes: 1

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