向silverlight传递自定义参数

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在silverlight往往还是有一些获取不到的东西,比如说客户机的ip等的数据.可以通过初始化sl时把参数传入sl中.

1.修改page类

public Page(string passText)
{
InitializeComponent();
txtPass.Text = passText;
}

2.修改App.xaml.cs

private void Application_Startup(object sender, StartupEventArgs e)
        {
            // Load the main control
            string passText = e.InitParams["passText"];
            this.RootVisual = new Page(passText);
        }

3.传递参数

方法1:
Code
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<%@ Register Assembly="System.Web.Silverlight" Namespace="System.Web.UI.SilverlightControls"
    TagPrefix="asp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>passtxt</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <div style="height: 100%;">
            <asp:Silverlight ID="Xaml1" runat="server" Source="~/ClientBin/HowTo.xap" Version="2.0"
                Width="100%" Height="100%"/>
        </div>
    </div>
    </form>
</body>
</html>
    protected void Page_Load(object sender, EventArgs e)
    {
        Xaml1.InitParameters = "passText=参数_方法1";
    }
方法2:
        <object data="data:application/x-silverlight," type="application/x-silverlight-2-b1" InitParameters="passText=123" width="100%" height="100%">
            <param name="InitParams" value="passText=参数_方法2" />
            <param name="source" value="ClientBin/HowTo.xap"/>
            <param name="onerror" value="onSilverlightError" />
            <param name="background" value="white" />

            <a href="http://go.microsoft.com/fwlink/?LinkID=108182" style="text-decoration: none;">
                 <img src="http://go.microsoft.com/fwlink/?LinkId=108181" alt="Get Microsoft Silverlight" style="border-style: none"/>
            </a>
        </object>

传递多个参数也是一样的.定义的时候改一下.后边的方法也类似.

public Page(string passText1,string passText2)
{
    InitializeComponent();
    txtPass1.Text = passText1;
    txtPass2.Text = passText2;
}

参数间用","隔开

ok 获取参数完成 ;)

附录:获取客户机ip "System.Net.Dns.GetHostAddresses(System.Net.Dns.GetHostName()).GetValue(0).ToString();"