GridView Dynamic Buttons not firing

[MikeB1]

Using SQL 2000 and VS2005
I have a GridView control which has 12 dynamically created buttons in the header row created as follows:

Protected Sub gvSCTPivot_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles gvSCTPivot.RowDataBound
        'Create the 12 buttons
        For Index = 1 To 12
            If e.Row.RowType = DataControlRowType.Header Then
                Dim NewBtn As Button = New Button
                NewBtn.Text = GetFinMonth(Index)
                NewBtn.CausesValidation = False
                NewBtn.ID = Index
                NewBtn.Width = 35
                NewBtn.Font.Size = 11
                AddHandler NewBtn.Click, AddressOf btn_Clicked
                e.Row.Cells(Index).Controls.Add(NewBtn)

            End If
        Next Index

    End Sub

Sub btn_Clicked(ByVal sender As System.Object, ByVal e As System.EventArgs)
        Session("MonthNum") = CInt(CType(sender, Button).ID)
        Session("MonthName") = GetFinMonth(Session("MonthNum"))
        If Session("MonthNum") < 4 Then
            Session("Year") = Session("FinYear") - 1
        Else
            Session("Year") = Session("FinYear")
        End If
        If Me.gvSCTPivot.Rows(0).Cells(Session("MonthNum")).Text.ToString = "&nbsp;" Then
            Response.Redirect("SC+TAdd.aspx")
        Else
            Response.Redirect("SC+TEdit.aspx")
        End If

    End Sub

The GridView EnableViewState property is also set to False

One of 2 DataSource controls are bound at runtime depending on whether the underlying data exists or not. The buttons fire OK with the first DataSource control. But they do not work with the second DataSource control.

The first DataSource control code where the buttons DO work is as follows:

SELECT TitleId, Name,
Sum(Case when FinMonth = 1 then Amount else NULL end) as Apr,
Sum(Case when FinMonth = 2 then Amount else NULL end) as May,
Sum(Case when FinMonth = 3 then Amount else NULL end) as Jun,
Sum(Case when FinMonth = 4 then Amount else NULL end) as Jul,
Sum(Case when FinMonth = 5 then Amount else NULL end) as Aug,
Sum(Case when FinMonth = 6 then Amount else NULL end) as Sep,
Sum(Case when FinMonth = 7 then Amount else NULL end) as Oct,
Sum(Case when FinMonth = 8 then Amount else NULL end) as Nov,
Sum(Case when FinMonth = 9 then Amount else NULL end) as Dec,
Sum(Case when FinMonth = 10 then Amount else NULL end) as Jan,
Sum(Case when FinMonth = 11 then Amount else NULL end) as Feb,
Sum(Case when FinMonth = 12 then Amount else NULL end) as Mar,
Sum(Amount) as Total,
Round(AVG(Amount),1) as Mean
from SCTPivot
left join SCTTitle
on SCTPivot.Title = SCTTitle.TitleId
Where FinYear = @FinYear
Group by TitleId, Name
Order by TitleId

The second DataSource control code where the buttons DO NOT work is as follows:

Select TitleId, Name,'' as Apr, '' as May, '' as Jun, '' as Jul, '' as Aug, '' as Sep, '' as Oct, '' as Nov, '' as Dec, '' as Jan, '' as Feb, '' as Mar, '' as Total, '' as Mean
From SCTTitle

Union

SELECT TitleId, Name,
Sum(Case when FinMonth = 1 then Amount else NULL end) as Apr,
Sum(Case when FinMonth = 2 then Amount else NULL end) as May,
Sum(Case when FinMonth = 3 then Amount else NULL end) as Jun,
Sum(Case when FinMonth = 4 then Amount else NULL end) as Jul,
Sum(Case when FinMonth = 5 then Amount else NULL end) as Aug,
Sum(Case when FinMonth = 6 then Amount else NULL end) as Sep,
Sum(Case when FinMonth = 7 then Amount else NULL end) as Oct,
Sum(Case when FinMonth = 8 then Amount else NULL end) as Nov,
Sum(Case when FinMonth = 9 then Amount else NULL end) as Dec,
Sum(Case when FinMonth = 10 then Amount else NULL end) as Jan,
Sum(Case when FinMonth = 11 then Amount else NULL end) as Feb,
Sum(Case when FinMonth = 12 then Amount else NULL end) as Mar,
Sum(Amount) as Total,
Round(AVG(Amount),1) as Mean
from SCTPivot
left join SCTTitle
on SCTPivot.Title = SCTTitle.TitleId
Where FinYear = 2010
Group by TitleId, Name
Order by TitleId

Both DataSource controls display data and the buttons in the GridView. One Datasource does work with the buttons and the other does not. Please can you help?

Thanks

Kind Regards

mike

[Frinavale]

Where are you doing your DataBind in the life cycle of the page?

Have you considered placing the buttons in the template for the GridView so that you can specify the method for the button click event instead of doing this in Code Behind?

Have you considered configuring your GridView to use the RowCommand Event to handle the button click event?

-Frinny