Filtering LINQ Queries Using Business Rules Engine

<%@ Page Title="" Language="C#" MasterPageFile="~/Common/Controls/Site.Master" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="CodeEffects.Rule.Demo.Filter.Asp.Default" %>

<%@ Register assembly="CodeEffects.Rule" namespace="CodeEffects.Rule.Asp" tagprefix="filter" %>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
	<div class="area">
		<h1 class="title">Postback Example</h1>
		<div class="settings">
			<div class="left">
				<span>Change the entity:</span>
				<asp:DropDownList ID="ddlEntity" runat="server" AutoPostBack="true">
					<asp:ListItem Value="customers">Customers</asp:ListItem>
					<asp:ListItem Value="products">Products</asp:ListItem>
					<asp:ListItem Value="orders">Orders</asp:ListItem>
				</asp:DropDownList>
			</div>
			<div class="left" style="margin-left:80px;">
				<span>Theme:</span>
				<asp:DropDownList ID="ddlTheme" runat="server" AutoPostBack="true">
					<asp:ListItem Value="White">White</asp:ListItem>
					<asp:ListItem Value="Blue">Blue</asp:ListItem>
					<asp:ListItem Value="Gray">Gray</asp:ListItem>
					<asp:ListItem Value="Green">Green</asp:ListItem>
					<asp:ListItem Value="Red">Red</asp:ListItem>
					<asp:ListItem Value="Black">Black</asp:ListItem>
					<asp:ListItem Value="Navy">Navy</asp:ListItem>
				</asp:DropDownList>
			</div>
			<div class="left" style="margin-left:30px;"><asp:CheckBox ID="chkHelp" runat="server" Text="Show help string" AutoPostBack="true" /></div>
			<div class="clear"></div>
		</div>
	</div>
	<div class="area">
		<h1 class="title">Filter Editor</h1>
		<div style="margin-top:10px;">
			<span>Info:</span>
			<asp:Label ID="lblInfo" runat="server" ForeColor="Red"></asp:Label>
		</div>
		<div style="margin-top:10px;">
			<filter:RuleEditor ID="filterControl" runat="server" Mode="Filter" />
		</div>
		<div style="margin-top:10px;text-align:right;">
			<asp:Button ID="btnSearch" runat="server" Text="Search" CssClass="button" />
			<asp:Button ID="btnClear" runat="server" Text="Clear" CssClass="button" />
		</div>
	</div>
	<div class="area">
		<h1 class="title">Search Results</h1>
		<div style="margin-top:10px;">
			<asp:GridView runat="server" ID="grdResults" CellPadding="0" CellSpacing="0" BorderWidth="0" Width="100%">
				<RowStyle CssClass="filterRow" />
				<AlternatingRowStyle CssClass="filterAltRow" />
			</asp:GridView>
		</div>
	</div>
</asp:Content>