Silverlight学习笔记之Silverlight和aspx页面互相传值

kagula

2012-2-27

学习环境

Win7SP1

VS2010SP1

 

第一种：GET方式传值

Silverlight源码

 

using System;
using System.Collections.Generic;
using System.Windows.browser;
using System.Windows.Controls;
using System.Windows;

namespace SilverlightApplication2
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();

            ShowQueryString();
        }

        //切换到aspx页面
        private void button1_Click(object sender,RoutedEventArgs e)
        {
            HtmlPage.Window.Eval("location='" + Application.Current.Host.source.AbsoluteUri.Replace(
                Application.Current.Host.source.AbsolutePath,"") + "/index.aspx?id=123';");
        }

        //接收到ASP.NET页面传送过来的QueryString值
        private void ShowQueryString()
        {             
            IDictionary<String,String> paras = HtmlPage.Document.QueryString;
            if (paras.ContainsKey("aspxid"))
            {
                textBox1.Text = "获取到ASP.NET传值：" + paras["aspxid"]; //this.label1.Content =
            }
        }
    }
}

aspx源码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace SilverlightApplication2.Web
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender,EventArgs e)
        {
            BindQueryString();
        }

        //ASP.NET端获取到Silverlight传输过来的QueryString值 
        private void BindQueryString(){             
            if (Request.QueryString.Count > 0) { 
                this.Label1.Text = "获取到的Silverlight客户端QueryString值是：" + Request.QueryString["id"].ToString(); 
            }
        }

        //回传QueryString值给Silverlight客户端      
        protected void Button1_Click(object sender,EventArgs e){             
            Response.Redirect("./SilverlightApplication2TestPage.aspx?aspxid=321");
        }
    }
}

 

第二种：Cookie方式传值

Silverlight源码

 

using System;
using System.Collections.Generic;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.browser;

namespace SilverlightApplication3
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();

            ShowCookie();
        }

        private void ShowCookie(){    
            //显示当前键为FirCookieKey的Cookie值    
            String[] cookies = HtmlPage.Document.Cookies.Split(';');    
            foreach (String cookie1 in cookies)    {        
                String[] keyvalues = cookie1.Split('=');        
                if (keyvalues[0] == "FirCookieKey")        
                {            
                    this.textBox2.Text = "Cookie的Key值是：" + keyvalues[0];            
                    this.textBox1.Text = "Cookie的Value值是：" + keyvalues[1];        
                }    
            };
        }

        private void button1_Click(object sender,RoutedEventArgs e)
        {
            //编写一个键为FirCookieKey，值为FirCookieValue的Cookie    
            string oldCookie = HtmlPage.Document.GetProperty("cookie") as String;    
            
            DateTime expiration = DateTime.UtcNow + TimeSpan.FromDays(2000);    

            string cookie = String.Format("{0}={1};expires={2}","FirCookieKey","FirCookieValue",expiration.ToString("R"));

            HtmlPage.Document.SetProperty("cookie",cookie);
            
            //跳转界面    
            HtmlPage.Window.Eval("location='" + Application.Current.Host.source.AbsoluteUri.Replace(
                Application.Current.Host.source.AbsolutePath,"") + "/index.aspx';");
        }
    }
}

aspx源码

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace SilverlightApplication3.Web
{
    public partial class index : System.Web.UI.Page
    {
        protected void Page_Load(object sender,EventArgs e)
        {
            BindCookie();
        }
        
        private void BindCookie(){    
            // ASP.NET端获取到Silverlight传输过来的Cookie值    
            HttpCookie cookie = Request.Cookies["FirCookieKey"];    
            if (cookie.Value != null)    {        
                this.Label2.Text = "获取到的Silverlight客户端Cookie值:" + cookie.Value;    
            }
        }
        
        protected void Button2_Click(object sender,EventArgs e){    
            //回传重新设置Cookie值然后传输给Silverlight    
            HttpCookie cookie = Request.Cookies["FirCookieKey"];    
            cookie.Value = "NewCookieValue";    
            HttpContext.Current.Response.Cookies.Add(cookie);
            Response.Redirect("./SilverlightApplication3TestPage.aspx");
        }
    }
}

 

参考资料

[1]《Silverlight实用窍门系列：37.Silverlight和ASP.NET相互传参的两种常用方式(QueryString,Cookie)【附带实例源码】》

http://www.cnblogs.com/chengxingliang/archive/2011/04/14/2015085.html