QueryableFilterRepeater, classe

<%@ Page Language="C#" MasterPageFile="~/Site.master"   
    CodeFile="QueryableFilterRepeater.aspx.cs" 
    Inherits="QueryableFilterRepeaterSample" %>

<%@ Register src="~/DynamicData/Content/GridViewPager.ascx" tagname="GridViewPager" tagprefix="asp" %>

<asp:Content ID="headContent" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">


    <asp:DynamicDataManager ID="DynamicDataManager1" runat="server" AutoLoadForeignKeys="true" />


     <h2 class="DDSubHeader"><%= table.DisplayName%></h2>

    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
            <asp:ValidationSummary ID="ValidationSummary1" runat="server" EnableClientScript="true"
                HeaderText="List of validation errors" />
            <asp:DynamicValidator runat="server" ID="GridViewValidator" ControlToValidate="GridView1" Display="None" />


	    <!-- Set the QueryableFilterRepeater control attributes. --> 
            <asp:QueryableFilterRepeater runat="server" ID="FilterRepeaterID">
                <ItemTemplate>
                    <asp:Label ID="Label1" runat="server" Text='<%# Eval("DisplayName") %>' />
                    <asp:DynamicFilter runat="server" ID="DynamicFilter" 
                        OnFilterChanged="OnFilterSelectionChanged"  /><br />
                </ItemTemplate>
            </asp:QueryableFilterRepeater>


	    <br />

             <!-- Data-bound control that shows the filtered table rows. -->
            <asp:GridView ID="GridView1" runat="server" 
                DataSourceID="GridDataSource" EnablePersistedSelection="true"
                AllowPaging="True" AllowSorting="True" CssClass="DDGridView">
                <Columns>
                    <asp:TemplateField>
                        <ItemTemplate>
                            <asp:LinkButton ID="DeleteLinkButton" runat="server" CommandName="Delete"
                                CausesValidation="true" Text="Delete"
                                OnClientClick='return confirm("Are you sure you want to delete this item?");'
                            />
                        </ItemTemplate>
                    </asp:TemplateField>
                </Columns>

                <PagerStyle CssClass="footer"/>        
                <PagerTemplate>
                    <asp:GridViewPager runat="server" />
                </PagerTemplate>
                <EmptyDataTemplate>
                    There are currently no items inthis table.
                </EmptyDataTemplate>
            </asp:GridView>

            <asp:LinqDataSource ID="GridDataSource" runat="server" 
                EnableDelete="true" 
                ContextTypeName="AdventureWorksLTDataContext"
                TableName="SalesOrderDetails">
            </asp:LinqDataSource>

            <!-- The control that handles the details for querying 
            the database, after a user's filtering action -->
            <asp:QueryExtender ID="QueryBlock1" 
                TargetControlID="GridDataSource" runat="server">
                <asp:DynamicFilterExpression ControlID="FilterRepeaterID" />
            </asp:QueryExtender>
        </ContentTemplate>
    </asp:UpdatePanel>


</asp:Content>

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml.Linq;
using System.Web.DynamicData;


publicpartialclass QueryableFilterRepeaterSample : System.Web.UI.Page 
{
    protected MetaTable table;

    protectedvoid Page_Init(object sender, EventArgs e) {
        DynamicDataManager1.RegisterControl(GridView1, true/*setSelectionFromUrl*/);
    }

    protectedvoid Page_Load(object sender, EventArgs e) {
        table = GridDataSource.GetTable();
        Title = table.DisplayName;

        // Disable various options if the table is readonlyif (table.IsReadOnly) {
            GridView1.Columns[0].Visible = false;
        }
    }

    // Handle the filter change event.// This function resets the index of the page to display.protectedvoid OnFilterSelectionChanged(object sender, EventArgs e) 
    {
        GridView1.PageIndex = 0;
    }
 }

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.ComponentModel.DataAnnotations;
using System.Web.DynamicData;

    // Define the enumeration to apply// to the OrderQty data field.// This enumeration is used for filtering.publicenum QtyEnum
    {
        None        = 0,
        Small1      = 1,
        Small2      = 2,
        Small3      = 3,
        Medium10    = 10,
        Medium11    = 11,
        Medium12    = 12,
        Medium13    = 13,
        Medium14    = 14,
        Large21     = 21,
        Large22     = 22,
        Large23     = 23,
        XLarge60    = 60,
        XLarge70    = 70
    }

    [MetadataType(typeof(SalesOrderDetail_MD))]
    publicpartialclass SalesOrderDetail {

        privateclass SalesOrderDetail_MD
        {
            // Qualify the OrderQty field // with the applicable // enumeration type.
            [EnumDataType(typeof(QtyEnum))] 
            publicobject OrderQty { get; set; }
        }
    }