Wrox Blog Question - LinkButton

Imar · January 24th, 2009, 04:58 AM

Hi there,

Take a look at some of the code you didn't post. In BlogEntries.ascx.vb you find this:

Code:

 
If Not Page.IsPostBack Then
  LoadData()
End If

This means this code is only fired when the page initially loads, and not aftwerwards when you click one of the paging links.... Simply remove the check for IsPostBack....

Hope this helps,

Imar

norman001 · February 7th, 2009, 01:09 PM

Hi,

I am working on on Imar's blog code. Every time I try to edit or creating a new blog and hit save button I get the following error code. I searched all over the places in the web but I don't see any solution that works..

Any help to address this would be much appreciated..

"sqlDateTime overflow.Must be between 1/11753 12:00:00 AM and 12/31/9999 11:59:59 PM"

Imar · February 7th, 2009, 01:38 PM

Hi there,

Looks like a required date is not set somewhere. A DateTime in .NET defaults to DateTime.MinValue which is a lot smaller than the lower bound for a SQL date.

Without seeing the code that causes this error it's impossible to suggest a fix. Do you have this issue with the code download as well?

Cheers,

Imar

norman001 · February 7th, 2009, 02:38 PM

Hi..thanks for the response!

I commented out Page.Validate() line in btnSave_Click code. Now there is no error! I don't understand ..what does Page.Validate() really does?

Protected Sub btnSave_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSave.Click

'Page.Validate()

If calDatePublished.SelectedDate <> DateTime.MinValue Then
..................................
.........................

Imar · February 7th, 2009, 03:03 PM

It trigger the validation controls on the page to determine whether the controls they are associated with are valid: http://msdn.microsoft.com/en-us/library/0ke7bxeh.aspx

Technically, you don't need that call as it's called by postback triggering controls like LinkButton....

Imar