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/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / WebControls / RouteParameter.cs / 1305376 / RouteParameter.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System; using System.ComponentModel; using System.Data; using System.Security.Permissions; using System.Web.Routing; ////// Represents a Parameter that gets its value from the application's route data. /// [ DefaultProperty("RouteKey"), ] public class RouteParameter : Parameter { ////// Creates an instance of the RouteParameter class. /// public RouteParameter() { } ////// Creates an instance of the RouteParameter class with the specified parameter name and request field. /// public RouteParameter(string name, string routeKey) : base(name) { RouteKey = routeKey; } ////// Creates an instance of the routeParameter class with the specified parameter name, database type, and /// request field. /// public RouteParameter(string name, DbType dbType, string routeKey) : base(name, dbType) { RouteKey = routeKey; } ////// Creates an instance of the RouteParameter class with the specified parameter name, type, and request field. /// public RouteParameter(string name, TypeCode type, string routeKey) : base(name, type) { RouteKey = routeKey; } ////// Used to clone a parameter. /// protected RouteParameter(RouteParameter original) : base(original) { RouteKey = original.RouteKey; } ////// The name of the route value to get the value from. /// [ DefaultValue(""), WebCategory("Parameter"), WebSysDescription(SR.RouteParameter_RouteKey), ] public string RouteKey { get { object o = ViewState["RouteKey"]; if (o == null) return String.Empty; return (string)o; } set { if (RouteKey != value) { ViewState["RouteKey"] = value; OnParameterChanged(); } } } ////// Creates a new RouteParameter that is a copy of this RouteParameter. /// protected override Parameter Clone() { return new RouteParameter(this); } ////// Returns the updated value of the parameter. /// protected internal override object Evaluate(HttpContext context, Control control) { if (context == null || context.Request == null || control == null) { return null; } RouteData routeData = control.Page.RouteData; if (routeData == null) { return null; } return routeData.Values[RouteKey]; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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