ตอนผมลบข้อมูลออกจาก gridview อยากให้มี msg เตือนก่อนลบครับ แนะนำทีครับ

<asp:GridView ID="myGridView" runat="server" AutoGenerateColumns="False" DataKeyNames="part_id"
                                            OnRowEditing="modEditCommand" OnRowCancelingEdit="modCancelCommand" OnRowDeleting="modDeleteCommand"
                                            OnRowUpdating="modUpdateCommand" CellPadding="4" ForeColor="#333333">
                                            <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
                                            <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
                                            <Columns>
                                                <asp:TemplateField ControlStyle-Width="90px" HeaderStyle-Font-Size="Larger" HeaderText="ID">
                                                    <ItemTemplate>
                                                        <asp:Label ID="lblpart_id" runat="server" Font-Size="9pt" Text='<%# DataBinder.Eval(Container, "DataItem.part_id") %>'></asp:Label>
                                                    </ItemTemplate>
                                                    <ControlStyle Width="90px" />
                                                    <HeaderStyle Font-Size="Larger" />
                                                </asp:TemplateField>
                                                <asp:TemplateField ControlStyle-Width="90px" HeaderStyle-Font-Size="Larger" HeaderText="Part">
                                                    <ItemTemplate>
                                                        <asp:Label ID="lblpart_name" runat="server" Font-Size="9pt" Text='<%# DataBinder.Eval(Container, "DataItem.part_name") %>'></asp:Label>
                                                    </ItemTemplate>
                                                    <EditItemTemplate>
                                                        <asp:TextBox ID="txtEditpart_name" Font-Size="9pt" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.part_name") %>'></asp:TextBox>
                                                    </EditItemTemplate>
                                                    <ControlStyle Width="90px" />
                                                    <HeaderStyle Font-Size="Larger" />
                                                </asp:TemplateField>
                                                <asp:TemplateField ControlStyle-Width="90px" HeaderStyle-Font-Size="Larger" HeaderText="Product">
                                                    <ItemTemplate>
                                                        <asp:Label ID="lblProduct_Name" runat="server" Font-Size="9pt" Text='<%# DataBinder.Eval(Container, "DataItem.Product_Name") %>'></asp:Label>
                                                    </ItemTemplate>
                                                    <EditItemTemplate>
                                                        <asp:TextBox ID="txtEditProduct_Name" Font-Size="9pt" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Product_Name") %>'></asp:TextBox>
                                                    </EditItemTemplate>
                                                    <ControlStyle Width="90px" />
                                                    <HeaderStyle Font-Size="Larger" />
                                                </asp:TemplateField>
                                                <asp:TemplateField ControlStyle-Width="90px" HeaderStyle-Font-Size="Larger" HeaderText="DCM">
                                                    <ItemTemplate>
                                                        <asp:Label ID="lblDCM" runat="server" Font-Size="9pt" Text='<%# DataBinder.Eval(Container, "DataItem.DCM") %>'></asp:Label>
                                                    </ItemTemplate>
                                                    <EditItemTemplate>
                                                        <asp:TextBox ID="txtEditDCM" Font-Size="9pt" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.DCM") %>'></asp:TextBox>
                                                    </EditItemTemplate>
                                                    <ControlStyle Width="40px" />
                                                    <HeaderStyle Font-Size="Larger" />
                                                </asp:TemplateField>
                                                <asp:TemplateField ControlStyle-Width="90px" HeaderStyle-Font-Size="Larger" HeaderText="Status">
                                                    <ItemTemplate>
                                                        <asp:Label ID="lblPart_Status" runat="server" Font-Size="9pt" Text='<%# DataBinder.Eval(Container, "DataItem.Part_Status") %>'></asp:Label>
                                                    </ItemTemplate>
                                                    <EditItemTemplate>
                                                        <asp:TextBox ID="txtEditPart_Status" Font-Size="9pt" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Part_Status") %>'></asp:TextBox>
                                                    </EditItemTemplate>
                                                    <ControlStyle Width="110px" />
                                                    <HeaderStyle Font-Size="Larger" />
                                                </asp:TemplateField>
                                                <asp:TemplateField ControlStyle-Width="90px" HeaderStyle-Font-Size="Larger" HeaderText="Eval">
                                                    <ItemTemplate>
                                                        <asp:Label ID="lblEval_Name" runat="server" Font-Size="9pt" Text='<%# DataBinder.Eval(Container, "DataItem.Eval_Name") %>'></asp:Label>
                                                    </ItemTemplate>
                                                    <EditItemTemplate>
                                                        <asp:TextBox ID="txtEditEval_Name" Font-Size="9pt" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Eval_Name") %>'></asp:TextBox>
                                                    </EditItemTemplate>
                                                    <ControlStyle Width="90px" />
                                                    <HeaderStyle Font-Size="Larger" />
                                                </asp:TemplateField>
                                                <asp:TemplateField ControlStyle-Width="90px" HeaderStyle-Font-Size="Larger" HeaderText="Size">
                                                    <ItemTemplate>
                                                        <asp:Label ID="lblSize" runat="server" Font-Size="9pt" Text='<%# DataBinder.Eval(Container, "DataItem.Size") %>'></asp:Label>
                                                    </ItemTemplate>
                                                    <EditItemTemplate>
                                                        <asp:TextBox ID="txtEditSize" Font-Size="9pt" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Size") %>'></asp:TextBox>
                                                    </EditItemTemplate>
                                                    <ControlStyle Width="40px" />
                                                    <HeaderStyle Font-Size="Larger" />
                                                </asp:TemplateField>
                                                <asp:TemplateField ControlStyle-Width="90px" HeaderStyle-Font-Size="Larger" HeaderText="Part Date">
                                                    <ItemTemplate>
                                                        <asp:Label ID="lblPart_Date" runat="server" Font-Size="9pt" Text='<%# DataBinder.Eval(Container, "DataItem.part_date") %>'></asp:Label>
                                                    </ItemTemplate>
                                                    <ControlStyle Width="80px" />
                                                    <HeaderStyle Font-Size="Larger" />
                                                </asp:TemplateField>
                                                <asp:CommandField ShowEditButton="True" CancelText="Cancel" DeleteText="Delete" EditText="Edit"
                                                    UpdateText="Update" HeaderText="Modify" />
                                                <asp:CommandField ShowDeleteButton="True" HeaderText="Delete" />
                                            </Columns>
                                            <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>

  Sub modDeleteCommand(ByVal sender As Object, ByVal e As GridViewDeleteEventArgs)
        dbm.delete("t_part", "part_id='" + myGridView.DataKeys.Item(e.RowIndex).Value + "'")
        myGridView.EditIndex = -1
        BindData(ConString, "Delete")
    End Sub