error

Question

User364480375 posted

 Private Function validateDate(ByVal strDate As String) As Boolean
        If strDate = "" Then
            ' empty allowed, so OK
            Return True
        End If
        Dim dt As DateTime = New DateTime(0)
        Dim ci As System.Globalization.CultureInfo = System.Globalization.CultureInfo.InvariantCulture
        If DateTime.TryParseExact(strDate,"dd/MM/yyyy",ci,System.Globalization.DateTimeStyles.None,ref dt)) Then
            ' valid date as parsing succeeded
            Return True
        End If
        ' error  
        Return False
    End Function

error : ref is not declared nd comma,')', validation continuation expression expected

Answer 1

User37182867 posted

 Private Function validateDate(ByVal strDate As String) As Boolean
        If strDate = "" Then
            ' empty allowed, so OK
            Return True
        End If
        Dim dt As DateTime = New DateTime(0)
        Dim ci As System.Globalization.CultureInfo = System.Globalization.CultureInfo.InvariantCulture
        If DateTime.TryParseExact(strDate,"dd/MM/yyyy",ci,System.Globalization.DateTimeStyles.None,ref dt)) Then
            ' valid date as parsing succeeded
            Return True
        End If
        ' error  
        Return False
    End Function

error : ref is not declared nd comma,')', validation continuation expression expected

The above striked line is not valid VB. Replace with below. ( Untested but should work )

 If DateTime.TryParseExact(strDate,"dd/MM/yyyy",ci,System.Globalization.DateTimeStyles.None, dt) Then

In VB you do not pass in parameters with the "ref" command like C# uses the "out" command. The signature of the method determines how the input parameters is used.

See this link for MS's definition https://msdn.microsoft.com/en-us/library/ddck1z30.aspx

Answer 2

User1428246847 posted

deadtroll

The above striked line is not valid VB.

Mike (?) is trying to convert C# code that I posted elsewhere. It was initially an out parameter in C# but that did not work, so I changed it to ref. Also does not seem to work.

And I'm not a VB person

Answer 3

User37182867 posted

there is no such thing as an "out" in VB you just simply assign it as "By Ref" in the signature and in the method call give it a variable to use.

If converting between C# and VB why not just use something like http://converter.telerik.com/

Which is probably better and faster at converting it than anyone who isnt familiar one language or the other.

Answer 4

User364480375 posted
Guys confusedb little bit. Wht code i should try??

Answer 5

User364480375 posted

thnks deadtroll and wims