Gridview Deleting before backing method runs?

Hi,

I am working with the gridview in .net 3.5 and have run into something I can not explain. I am testing my delete methods when I realized that the row was actually being deleted before my event handler even finished processing. Am I dreaming or just missing something.

I setup a base gridview with event handlers for select, insert, update, and delete.

<asp:GridView ID="TableGridView" 
              OnRowEditing ="TableGridView_RowEditing" 
              OnRowCancelingEdit="TableGridView_RowCancelingEdit" 
              OnRowUpdating="TableGridView_RowUpdating"
              OnRowDeleting="TableGridView_RowDeleting"
              OnPageIndexChanging="TableGridView_PageIndexChanging"
              runat="server" AutoGenerateColumns="False" CellPadding="4" 
              ForeColor="#333333" GridLines="None" AllowPaging="True" 
              AllowSorting="True" HorizontalAlign="Center">
            <PagerSettings Mode="NumericFirstLast" 
                FirstPageImageUrl="~/Images/n_skip_first.gif" FirstPageText="First" 
                LastPageImageUrl="~/Images/n_skip_last.gif" LastPageText="Last" 
                NextPageImageUrl="~/Images/n_skip_next.gif" NextPageText="Next" 
                PreviousPageImageUrl="~/Images/n_skip_previous.gif" 
                PreviousPageText="Previous" PageButtonCount="5" Position="TopAndBottom" />
            <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
            <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
            <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
            <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
            <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
            <EditRowStyle BackColor="#999999" />
            <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
        </asp:GridView>

I then dynamically load the grid with buttons and data using ITemplate.

Here is my InstantiateIn Method.

public void InstantiateIn(System.Web.UI.Control Container)
        {
            switch (ItemType)
            {
                case ListItemType.Header:
                    Literal header_ltrl = new Literal();
                    header_ltrl.Text = "<b>" + FieldName + "</b>";
                    Container.Controls.Add(header_ltrl);
                    break;
                case ListItemType.Item:
                    switch (ControlType)
                    {
                        case "Command":
                            ImageButton edit_button = new ImageButton();
                            edit_button.ID = "edit_button";
                            edit_button.ImageUrl = "~/images/edit.gif";
                            edit_button.CommandName = "Edit";
                            edit_button.Click += new ImageClickEventHandler(edit_button_Click);
                            edit_button.ToolTip = "Edit";
                            Container.Controls.Add(edit_button);

                            ImageButton delete_button = new ImageButton();
                            delete_button.ID = "delete_button";
                            delete_button.ImageUrl = "~/images/delete.gif";
                            delete_button.CommandName = "Delete";
                            delete_button.OnClientClick = "return confirm('Confirm you want to delete the record?')";
                            delete_button.ToolTip = "Delete";
                            Container.Controls.Add(delete_button);

                            ImageButton insert_button = new ImageButton();
                            insert_button.ID = "insert_button";
                            insert_button.ImageUrl = "~/images/insert.bmp";
                            insert_button.CommandName = "Edit";
                            insert_button.ToolTip = "Insert";
                            insert_button.Click += new ImageClickEventHandler(insert_button_Click);
                            Container.Controls.Add(insert_button);
                            break;

                        default:
                            Label field_lbl = new Label();
                            field_lbl.ID = FieldName;
                            field_lbl.Text = String.Empty;
                            field_lbl.DataBinding += new EventHandler(OnDataBinding);
                            Container.Controls.Add(field_lbl);
                            break;
                    }
                    break;
                case ListItemType.EditItem:
                    if (ControlType == "Command")
                    {
                        ImageButton update_button = new ImageButton();
                        update_button.ID = "update_button";
                        update_button.CommandName = "Update";
                        update_button.ImageUrl = "~/images/update.gif";
                        update_button.ToolTip = "Update";
                        update_button.OnClientClick =
                          "return confirm('Confirm you want to update the record?')";
                        Container.Controls.Add(update_button);

                        // Similarly, add a button for Cancel

                        ImageButton cancel_button = new ImageButton();
                        cancel_button.ID = "cancel_button";
                        cancel_button.CommandName = "Cancel";
                        cancel_button.ImageUrl = "~/images/cancel.gif";
                        cancel_button.ToolTip = "Cancel";
                        cancel_button.OnClientClick =
                          "return confirm('Confirm you want to cancel?')";
                        Container.Controls.Add(cancel_button);

                    }
                    else
                    // if other key and non key fields then bind textboxes with texts
                    {
                        TextBox field_txtbox = new TextBox();
                        field_txtbox.ID = FieldName;
                        field_txtbox.Text = String.Empty;
                        // if to update then bind the textboxes with coressponding field texts
                        //otherwise for insert no need to bind it with text

                        if ((int)new Page().Session["InsertFlag"] == 0)
                            field_txtbox.DataBinding += new EventHandler(OnDataBinding);
                        Container.Controls.Add(field_txtbox);

                    }
                    break;
            }
        }

I have tested my event handler and it is working fine and deletes the row correctly and was just doing some final testing before moving onto another method when I noticed that if I break out of the app just before the event handler is fired the row has already been deleted.

I had a feeling it was something to do with on page load I am re-building the template but I put a break there and still the row was deleted. It looks like once I hit ok on the confirm return the record is deleted.

Does anyone have a better understanding of this control, am I doing something wrong or just not well informed.