Function dostuff(ByVal aDate As String) As String
Dim isDate As Boolean
Dim parsedDate As DateTime
isDate = DateTime.TryParse(aDate, parsedDate)
If (isDate)
Return parsedDate.ToShortDateString()
Else
Return "Not a valid date"
End Function
HTH,
Ryan
Thank you,
Ryan Olshan
Website - http://www.StrongTypes.com <http://www.strongtypes.com/>
Group - http://groups.yahoo.com/group/StrongTypes
Blog - http://blogs.strongcoders.com/blogs/ryan/
_____
From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of
Joel Dickson
Sent: Sunday, April 30, 2006 10:32 PM
To: [email protected]
Subject: [AspNet2] Issue with Nullable Generic Structure
I'm having an issue with passing values from text boxes through to
the fill subroutines on my dataTableAdaptors.
Basically this is a simple example that illustrates my issue
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Button1.Click
MsgBox((Nothing = "").ToString) 'Returns "True"
MsgBox(dostuff(Nothing)) 'Returns "not a date"
MsgBox(dostuff("")) 'Throws Exception - Conversion from string
"" to type 'Date' is not valid.
End Sub
Function dostuff(ByVal aDate As System.Nullable(Of Date)) As String
If aDate.HasValue Then
Return CType(aDate, Date).ToShortDateString
Else
Return "not a date"
End If
End Function
I'm unsure what to do here, I tried to create a function to converts
empty strings to Nothing and execute that before passing the values of
the text boxes to the fill functions but that produces the same error.
Thanks in advance,
Joel
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