Scripts in PDF courseware not working correctly...?

[R2]

Hi,

I posted several threads in various Telerik AJAX forums and have not had replies to all.  I will try posting here since I'm using the courseware and encountering problems doing the lessons.  
 

1. Unable to see the Tool tips in the column header of the RadGrid
   PDF pg 459
   
   

   
       Protected Sub RadGrid1_ItemCreated(ByVal sender As Object, ByVal e As GridItemEventArgs)
           'Check for GridHeaderItem if you wish tooltips only for the header cells
           If TypeOf e.Item Is GridHeaderItem Then
               Dim headerItem As GridHeaderItem = TryCast(e.Item, GridHeaderItem)
               headerItem("CreditRating").ToolTip = "CreditRating"
               headerItem("PreferredVendorStatus").ToolTip = "PreferredVendorStatus"
               headerItem("ActiveFlag").ToolTip = "ActiveFlag"
           End If
       End Sub

2. Unable to drag and drop rows within a RadGrid
   PDF pg. 475
   
   

       Protected Sub RadGrid1_RowDrop(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridDragDropEventArgs)
           Dim item As GridDataItem = TryCast(e.DraggedItems(0), GridDataItem)
           RadAjaxManager1.Alert("Dropped VendorID: " + item.GetDataKeyValue("VendorID"))
       End Sub

3. Unable to delete records in a RadGrid
   PDF pg. 472
   
   

   [T-SQL]
   DELETE FROM Purchasing.[Vendor] WHERE [VendorID] = @VendorID

   
   Javascript error:
   
   

   Line: 7
   Char: 62099
   Error: Sys.WebForms.PageReuestManagerServerErrorException: The transaction ended in the trigger.  The batch has been aborted.  Vendors cannot be deleted.  They can only be marked as not active
   

4. Item insert code not working
   PDF pg. 477
   
   

       Protected Sub RadGrid1_ItemInserted(ByVal source As Object, ByVal e As GridInsertedEventArgs)
           If e.Exception <> Nothing Then
               e.ExceptionHandled = True
               e.KeepInInsertMode = True
   
               DisplayMessage("Product cannot be inserted. Reason: " + e.Exception.Message)
           Else
               DisplayMessage("Product inserted")
           End If
       End Sub

 

The compilation error I get using the code in #4 is:
Compiler Error Message: BC30452: Operator '<>' is not defined for types 'System.Exception' and 'System.Exception'.

Also, within the code, there are squiggly lines under "DisplayMessage".  The caption is "Name 'DisplayMessage' is not declared".  I understand how to declare a variable, but what should I declare it as?

Thanks very much for all help,
r2

[Sebastian]

Hi R2,

Review the replies in the separate forum threads you opened with regards to this subject:

http://www.telerik.com/community/forums/aspnet-ajax/ajax/tooltip-vb-code-does-not-work.aspx
http://www.telerik.com/community/forums/aspnet-ajax/tooltip/tool-tip-not-displaying-in-radgrid-gridheaderitem.aspx

http://www.telerik.com/community/forums/aspnet/grid/drag-and-drop-rows-in-radgrid.aspx

http://www.telerik.com/community/forums/aspnet/grid/unable-to-delete-record-in-grid.aspx

http://www.telerik.com/community/forums/aspnet-ajax/documentation/self-paced-learning.aspx

and change the following code line:

If e.Exception <> Nothing Then 

to

If Not e.Exception Is Nothing Then 

To see whether this helps.

Best regards,
Sebastian
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.

[R2]

Thank you, Sebastian, for your replies.  I will try using the revised code you list and let you know what happens.

Sincerely,
R2