Hi,

I follow your hint and solved that error and now I have a new one when
I delete a row:
" Exception Details: System.Data.Linq.ChangeConflictException: Row not
found or changed."

Any idea why do I get this error?

   Private Sub ldsTags_Init(ByVal sender As Object, ByVal e As
EventArgs) Handles ldsTags.Init
     With ldsTags
       .ContextTypeName = "MyDbDataContext"
       .EnableDelete = True
       .EnableInsert = True
       .EnableUpdate = True
       .ID = "ldsTags"
       .TableName = "Tags"
     End With
   End Sub ' ldsTags_Init

   Private Sub ldsTags_Deleting(ByVal sender As Object, ByVal e As
LinqDataSourceDeleteEventArgs) Handles ldsTags.Deleting

     Dim tag As Tag = CType(e.OriginalObject, Tag)
     Dim database As New MyDbDataContext
     database.Tags.Attach(tag)
     database.Tags.DeleteOnSubmit(tag)
     database.SubmitChanges()

   End Sub ' ldsTags_Deleting

   Private Sub ldsTags_Selecting(ByVal sender As Object, ByVal e As
LinqDataSourceSelectEventArgs) Handles ldsTags.Selecting
     Dim database As New MyDbDataContext
     Dim tags = From t In database.Tags _
                Select t.TagID, _
                       t.Text, _
                       Active = t.FilesTags.Any Or t.ArticlesTags.Any
     e.Result = tags
   End Sub ' ldsTags_Selecting

   ' lvTags_Init
   Private Sub lvTags_Init(ByVal sender As Object, ByVal e As
EventArgs) Handles lvTags.Init
     With lvTags
       .DataSourceID = "ldsTags"
       .DataKeyNames = New String() {"TagID"}
       .ID = "lvTags"
       .InsertItemPosition = InsertItemPosition.FirstItem
     End With
     With lvTags
       .EditItemTemplate = New
TagsTemplate(TemplateType.EditItemTemplate)
       .EmptyDataTemplate = New
TagsTemplate(TemplateType.EmptyDataTemplate)
       .InsertItemTemplate = New
TagsTemplate(TemplateType.InsertItemTemplate)
       .ItemTemplate = New TagsTemplate(TemplateType.ItemTemplate)
       .LayoutTemplate = New
TagsTemplate(TemplateType.LayoutTemplate)
     End With
   End Sub ' lvTags_Init

   Private Sub lvTags_Load(ByVal sender As Object, ByVal e As
EventArgs) Handles lvTags.Load
     lvTags.DataBind()
   End Sub ' lvTags_Load

Thanks,
Miguel