Issue while formatting date

I’m trying to format the following value 01/08/2020

Dim value1 as string  = '01/08/2020'

Response.Write(Format(CDate(value1),"yyyy-MMM-dd"))

The result returned as 2020-Jan-08 instead of 2020-Aug-01

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Answers:

Method 1

Method 2

Answers:

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Method 1

There is an easier method for formatting dates. Try this:

Response.Write(DateTime.ParseExact(value1, "dd/MM/yyyy", null).ToString("yyyy-MMM-dd"))

See https://docs.microsoft.com/en-us/dotnet/standard/base-types/custom-date-and-time-format-strings for the various possible date formats.

Method 2

Out of caution I’d do this

    Dim value1 As String = "1/8/2020" '
    Dim d As Date
    'https://docs.microsoft.com/en-us/dotnet/api/system.datetime.tryparseexact?view=netcore-3.1#System_DateTime_TryParseExact_System_String_System_String___System_IFormatProvider_System_Globalization_DateTimeStyles_System_DateTime__
    If DateTime.TryParseExact(value1, "d/M/yyyy", Nothing, Globalization.DateTimeStyles.None, d) Then
        Dim s As String = d.ToString("yyyy-MMM-dd")
        Response.Write(s)
    Else
        Stop 'error placeholder
    End If

You’ll need to add code where the Stop is in case of error in the parse.

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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