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VB.Net: Substract from a date (days, months, years)
From Wiki
To substract you have to add
- Module Module1
- Sub Main()
- Dim _Date As New Date(2008, 6, 12)
- Console.WriteLine("begin")
- Console.WriteLine(_Date.ToString("dd/MM/yyyy"))
- _Date = _Date.AddDays(-10)
- Console.WriteLine("subtracting 10 days")
- Console.WriteLine(_Date.ToString("dd/MM/yyyy"))
- _Date = _Date.AddMonths(-10)
- Console.WriteLine("subtracting 10 months")
- Console.WriteLine(_Date.ToString("dd/MM/yyyy"))
- _Date = _Date.AddYears(-10)
- Console.WriteLine("subtracting 10 years")
- Console.WriteLine(_Date.ToString("dd/MM/yyyy"))
- _Date = _Date.Add(New TimeSpan(10, 0, 0, 0, 0).Negate)
- Console.WriteLine("subtracting 10 days with timespan")
- Console.WriteLine(_Date.ToString("dd/MM/yyyy"))
- Console.ReadLine()
- End Sub
- End Module
Look how all the numbers are negative and how you can set a timespan to be negative by calling the negate method.
Here is the result.
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