ASP.NET

protected override void OnInit(EventArgs e)
        {
            InitializeComponent();
            base.OnInit(e);
        }

        private void InitializeComponent()
        {
            DataGrid productCulturesDataGrid = ((DataGrid)ProductDetailsView.FindControl("ProductsCultureDataGrid"));

            productCulturesDataGrid.EditCommand += new DataGridCommandEventHandler(this.ProductsCultureDataGrid_EditCommand);
            this.Load += new System.EventHandler(this.Page_Load);
        }

//GetListOfProductCultures
                        List<ProductsCultureInfo> productCultures = (List<ProductsCultureInfo>)ListOfProductCultures();

 DataGrid productCulturesDataGrid = ((DataGrid)ProductDetailsView.FindControl("ProductsCultureDataGrid"));
                        productCulturesDataGrid.DataSource = productCultures;
                        productCulturesDataGrid.DataBind();

private void ProductsCultureDataGrid_EditCommand(object sender, DataGridCommandEventArgs e)
{
    DataGrid ProductsCultureDataGrod = (DataGrid)ProductDetailsView.FindControl("ProductsCultureDataGrid");
    ProductsCultureDataGrod.EditItemIndex = e.Item.ItemIndex;
}

<asp:DetailsView ID="ProductDetailsView" runat="server" Height="50px" Width="125px" EnableModelValidation="True" AutoGenerateRows="False">
    <Fields>
        <asp:BoundField DataField="ProductID" HeaderText="Product ID" Visible="False" />
        <asp:TemplateField HeaderText="Name">
            <ItemTemplate>
                <asp:Label ID="NameLabel" runat="server" />
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Description">
            <ItemTemplate>
                <asp:Label ID="DescriptionLabel" runat="server" />
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Thumbnail">
            <ItemTemplate>
                <asp:TextBox ID="ThumbnailTextBox" runat="server" Text='<%# Bind("ThumbURL") %>' />
                <asp:Image ID="ThumbnailImage" runat="server" ImageUrl='<%# Bind("ThumbURL") %>' />
                <asp:LinkButton ID="cmdUpdateThumbnail" runat="server" BorderStyle="None" Text="Test URL" OnClick="cmdUpdateThumbnail_Click" />
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Ext Product ID">
            <ItemTemplate>
                <asp:TextBox ID="ExtProductIDTextBox" runat="server" Text='<%# Bind("ExtProductID") %>' />
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Builder Type">
            <ItemTemplate>
                <asp:DropDownList ID="BuilderTypesDropDownList" runat="server">
                    <asp:ListItem>Calendars</asp:ListItem>
                    <asp:ListItem>Cards and Stationery</asp:ListItem>
                    <asp:ListItem>Gifts</asp:ListItem>
                    <asp:ListItem>Photobooks</asp:ListItem>
                </asp:DropDownList>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Active">
            <ItemTemplate>
                <asp:CheckBox ID="ActiveCheckBox" runat="server" Checked='<%# Bind("Active")%>' />
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Culture Variations">
            <ItemTemplate>
                <asp:DataGrid ID="ProductsCultureDataGrid" runat="server" AutoGenerateColumns="false">
                    <Columns>
                        <asp:BoundColumn DataField="ItemID" HeaderText="ProductCultureID" Visible="False">
                        </asp:BoundColumn>
                        <asp:BoundColumn DataField="CultureCode" HeaderText="Culture Code"></asp:BoundColumn>
                        <asp:BoundColumn DataField="Name" HeaderText="Name"></asp:BoundColumn>
                        <asp:BoundColumn DataField="Description" HeaderText="Description"></asp:BoundColumn>
                        <asp:BoundColumn DataField="Currency" HeaderText="Currency"></asp:BoundColumn>
                        <asp:BoundColumn DataField="CurrencySymbol" HeaderText="Currency Symbol"></asp:BoundColumn>
                        <asp:BoundColumn DataField="Price" HeaderText="Price"></asp:BoundColumn>
                        <asp:TemplateColumn HeaderText="Symbol At Front?">
                            <ItemTemplate>
                                <asp:CheckBox ID="SymbolAtFront" runat="server" Checked='<%# Bind("SymbolAtFront") %>' />
                            </ItemTemplate>
                        </asp:TemplateColumn>
                        <asp:EditCommandColumn EditText="Edit" ButtonType="PushButton"></asp:EditCommandColumn>
                    </Columns>
                </asp:DataGrid>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField>
            <ItemTemplate>
                <asp:Button ID="AddNewCultureButton" runat="server" Text="Add Culture Variation" OnClick="AddNewCultureButton_Click" />
            </ItemTemplate>
        </asp:TemplateField>
    </Fields>
</asp:DetailsView>

Public Class BasePage 
Inherits System.Web.UI.Page   

    public Dim acon As New SqlConnection

    Protected Overridable Sub  Page_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init
        acon= new SqlConnection(ConfigurationManager.ConnectionStrings("DOCDBDWHConnectionString").ConnectionString)
        acon.open()
    End Sub

Partial Class Site
    Inherits System.web.UI.MasterPage