问从其他aspx页访问aspx页中的控件属性

EN

<asp:ListView ID="ListView1" runat="server"
              GroupItemCount="3" DataSourceID="SqlDataSource1">

    <LayoutTemplate>
        <table style="table-layout:fixed;width:100%">
            <tr id="groupPlaceholder" runat="server"></tr>
        </table>
    </LayoutTemplate>

    <GroupTemplate>
        <tr>
            <td id="itemPlaceholder" runat="server"></td>
        </tr>
    </GroupTemplate>

    <ItemTemplate>
        <td align="center">
            <asp:Image ID="productImage" ImageUrl='<%# Eval("ImageUrl") %>' runat="server"/>
            <br />
            <asp:LinkButton ID="ProductTitleLinkButton"
                 runat="server" Text='<%# Eval("ProductTitle") %>'
                 OnClick="ProductTitleLinkButton_Click"
                 PostBackUrl="~/ItemDetails.aspx">
            </asp:LinkButton>
            <br />Rs. 
            <asp:Label ID="PriceLabel" runat="server" Text='<%# Eval("Price") %>'></asp:Label>
            <br />        
        </td>
    </ItemTemplate>

    <GroupSeparatorTemplate>
        <tr runat="server">
            <td colspan="3"><hr /></td>
        </tr>
    </GroupSeparatorTemplate>
</asp:ListView> 

protected void Page_Load(object sender, EventArgs e)
{
    //Checking if itemsView page exists
    if (Page.PreviousPage != null)
    {
        //Getting the list view in previous page
        ListView listView_PreviousPage = (ListView)PreviousPage.FindControl("ListView1");

        //Getting the data source of list view in the previous page
        string dataSource = listView_PreviousPage.DataSourceID;

        //Getting the SQL data source used by the list view in the previous page
        SqlDataSource sqlDataSource_PreviousPage = (SqlDataSource)PreviousPage.FindControl(dataSource);

        //Getting the SelectCommand property (to get the query) of the SQL Data source
        string selectCommand = sqlDataSource_PreviousPage.SelectCommand;

        //Getting the image of the product selected in itemsView page
        Image productImage_PreviousPage = (Image)PreviousPage.FindControl("productImage");

        //Getting the image url of the image
        string imageUrl_PreviousPage = productImage_PreviousPage.ImageUrl;
    }
}