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.NET Forum / ASP.NET / General / June 2007

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Adrotator

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Aussie Rules - 04 Jun 2007 20:31 GMT
Hi,
I have a adrotator control on a page, and want to program the connection of
the control via SQL.

I have the following code  which doesn't seem to do much, and not sure what
else to do?

           Dim SQLServerConnection As SqlConnection
           Dim SqlConnectionCls As New clsSQL
           SQLServerConnection = SqlConnectionCls.Connect

           Dim SqlCommand As New SqlCommand

           With SqlCommand
               .CommandType = Data.CommandType.StoredProcedure
               .Connection = SQLServerConnection
               .CommandTimeout = 15
               .CommandText = "sproc_GetAddDetails"
           End With

           Me.AdRotator1.DataSource = SqlCommand

           AdRotator1.ImageUrlField = "advert_image"
           AdRotator1.NavigateUrlField = "advert_URLlink"
Alexey Smirnov - 04 Jun 2007 21:41 GMT
> Hi,
> I have a adrotator control on a page, and want to program the connection of
[quoted text clipped - 20 lines]
>             AdRotator1.ImageUrlField = "advert_image"
>             AdRotator1.NavigateUrlField = "advert_URLlink"

I think you forgot to get the data

AdRotator1.DataSource = SqlCommand.ExecuteReader
Steven Cheng[MSFT] - 05 Jun 2007 04:35 GMT
Hi Aussie,

As Alexey has suggested, for SqlCommand object, after you initialize it,
you can call the "ExecuteReader" method (for select ) to return a
SqlDataReadere object. You can loop all the records in the resultset
through DataReader

#Retrieving Data Using a C# .NET DataReader
http://www.akadia.com/services/dotnet_data_reader.html

and for ASP.NET complex databound control, you can directly assign the
DataReader object to their "DataSource" property and call "DataBind" method
to perform databinding. e.g.

==============
SqlCommand comm;

.............

       SqlDataReader reader = comm.ExecuteReader();
       AdRotator1.DataSource = reader;
       AdRotator1.DataBind();
===================

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead



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Aussie Rules - 05 Jun 2007 18:26 GMT
Hi,

Thanks for your reply.

I am still not able to get this to work. My code is as follows. When I view
source of the HTML page, there are no values for the adrotator at all.
The Stored Proc works fine.

I can't see whats wrong......

Try

   Dim SQLServerConnection As SqlConnection
   Dim SqlConnectionCls As New clsSQL
   SQLServerConnection = SqlConnectionCls.Connect
   Dim SqlCommand As New SqlCommand

With SqlCommand

   .CommandType = Data.CommandType.StoredProcedure
   .Connection = SQLServerConnection
   .CommandTimeout = 15
   .CommandText = "sproc_GetBannerAdvertDetails"

End With

' I have swapped these arround and tried, but not working. I have put the
image/navurl after the databind.

AdRotator1.ImageUrlField = "advert_image"
AdRotator1.NavigateUrlField = "advert_URLlink"
AdRotator1.DataSource = SqlCommand.ExecuteReader
AdRotator1.DataBind()

Catch ex As Exception

End Try

> Hi Aussie,
>
[quoted text clipped - 50 lines]
>
> AdRotator1.DataSource = SqlCommand.ExecuteReader
Alexey Smirnov - 05 Jun 2007 19:54 GMT
> Hi,
>
[quoted text clipped - 5 lines]
>
> I can't see whats wrong......

Aussie,

get rid of the try..catch block, I think you will see what is wrong.

Hope it helps
Aussie Rules - 06 Jun 2007 07:40 GMT
Hi,
Sorry I actually removed the catch code to save space. There was no error
created(catch never got fired)

Thanks

>> Hi,
>>
[quoted text clipped - 12 lines]
>
> Hope it helps
Alexey Smirnov - 06 Jun 2007 07:53 GMT
> Hi,
> Sorry I actually removed the catch code to save space. There was no error
[quoted text clipped - 20 lines]
>
> - Show quoted text -

Well, are you sure that sproc_GetBannerAdvertDetails is working? Try
to execute it in the Query Analizer (or any other tool to check the db
output)
Steven Cheng[MSFT] - 06 Jun 2007 08:36 GMT
Hi Aussie,

I'm not sure about your backend datasource. I suggest you perform the
following checK

1. Direclty bind the DataReader(get from SqlCommand) to a GridView (with
AutoGenerateColumns="true") to verify whether the reader has returned the
correctly & expected resultset

2. For databinding code logic, here is the code in my local test page for
your reference:

=================================
Protected Sub Page_Load(ByVal sender As Object, ByVal e As
System.EventArgs) Handles Me.Load

       BindRotator()

   End Sub

   Private Sub BindRotator()

       Dim conn As SqlConnection
       Dim comm As SqlCommand
       Dim sql As String = "SELECT [id], [name], [description] FROM
[RVTable]"
       Dim rdr As SqlDataReader

       conn = New
SqlConnection(WebConfigurationManager.ConnectionStrings("ASPNETTestDBConnect
ionString").ConnectionString)
       conn.Open()
       comm = New SqlCommand(sql, conn)

       rdr = comm.ExecuteReader()

       AdRotator1.DataSource = rdr
       AdRotator1.ImageUrlField = "name"
       AdRotator1.NavigateUrlField = "description"

       AdRotator1.DataBind()

       rdr.Close()

       conn.Close()

   End Sub
================================

If you have any further finding or question, please feel free to post here.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead

This posting is provided "AS IS" with no warranties, and confers no rights.

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