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date property not being set from database value

Posted on 2011-03-02
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Last Modified: 2012-05-11
I have the following code:
.DateOpened = CDate(datarow.Item("DateOpened"))
.DateResolved = CDate(datarow.Item("DateResolved"))

The value of datarow.Item("DateOpened") = 2/28/2011 12:53:55 PM
The value of DateOpened = #12:00:00 AM#

How can that be?

The properties are show below.

The fields in the db are DateTime.

Can anyone see what is going on here?
Public Property DateResolved() As Date
        Get
            Return _dtDateResolved
        End Get
        Set(ByVal value As Date)
            value = _dtDateResolved
        End Set
    End Property

    Public Property DateOpened() As Date
        Get
            Return _dtDateOpened
        End Get
        Set(ByVal value As Date)
            value = _dtDateOpened
        End Set
    End Property

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Question by:scm0sml
  • 7
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17 Comments
 
LVL 3

Expert Comment

by:MTroutwine
Comment Utility
Hi,

Are you sure you are getting a value back from the database that isn't null?  The #12:00:00 AM# would indicate a null value was returned.

Take a look at this article, if you haven't already: http://vbnotebookfor.net/2007/09/27/introduction-to-nullable-types-in-vbnet/

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Expert Comment

by:Asim Nazir
Comment Utility
Perhaps DateOpened  is nullable and null is stored in DB. This is why date returned is incorrect.

Asim
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Author Comment

by:scm0sml
Comment Utility
I've shown in the question that the value coming back from the db is not null?
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LVL 10

Expert Comment

by:Asim Nazir
Comment Utility
If date is nullable, you can do something like this to get default value from DB

Select
Isnull(DateOpened, GetDate())
from ...
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Author Comment

by:scm0sml
Comment Utility
THE DATE IS NOT NULL!!

It is being returned
2/28/2011 12:53:55 PM
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LVL 3

Expert Comment

by:MTroutwine
Comment Utility
What DBMS are you pulling the data from?  SQL, Access, Oracle, etc.
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Author Comment

by:scm0sml
Comment Utility
SQL Server yeah.
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Author Comment

by:scm0sml
Comment Utility
I've got other properties working the same way elsewhere in the code.

It doesn't make any sense?!
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LVL 19

Expert Comment

by:Shahan Ayyub
Comment Utility
Hi!

Does it worked for you:

    Public Property DateResolved() As DateTime
        Get
            Return _dtDateResolved
        End Get
        Set(ByVal value As Date)
            value = _dtDateResolved
        End Set
    End Property

    Public Property DateOpened() As DateTime
        Get
            Return _dtDateOpened
        End Get
        Set(ByVal value As Date)
            value = _dtDateOpened
        End Set
    End Property

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I hope so changing every "Date" to "DateTime" can resolve the issue.
0
 

Author Comment

by:scm0sml
Comment Utility
unfortunately not :(

any other ideas?
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LVL 19

Expert Comment

by:Shahan Ayyub
Comment Utility
did you tried like this:
        Dim s As String = DataRow.Item("DateOpened").ToString
        Dim dt As DateTime = Convert.ToDateTime(s)

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Expert Comment

by:Shahan Ayyub
Comment Utility
I 'll check back in the next hour to see what happened now.
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Expert Comment

by:Shahan Ayyub
Comment Utility
Hi!

Did you check that ???
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Author Comment

by:scm0sml
Comment Utility
it hasnt worked. I wouldnt have been particularly happy doing that anyway.....
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Accepted Solution

by:
scm0sml earned 0 total points
Comment Utility
Right I have found the problem and I deserve to be sacked......but tut tut experts!!

Spot the mistake in my property!!!

Do we think this:
Set(ByVal value As Date)
            value = _dtDateResolved
        End Set

 should be this:??!!
Set(ByVal value As Date)
            _dtDateResolved = value
        End Set

Im such an idiot!!!!
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Expert Comment

by:Amandeep Singh Bhullar
Comment Utility
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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