RouteParameter.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 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.

Link Menu

Network programming in C#, Network Programming in VB.NET, Network Programming in .NET
This book is available now!
Buy at Amazon US or
Buy at Amazon UK