ASP.Net/Network/HttpBrowserCapabilities

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   <source lang="csharp">

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="HomePage" %> <html xmlns="http://www.w3.org/1999/xhtml"> <head>

   <title>Home Page</title>

</head> <body>

   <form id="form1" runat="server">
           <input runat="server" type="button" id="HomePageButton" value="Set home page" />
   </form>

</body> </html> File: Default.aspx.cs

using System; using System.Configuration; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.HtmlControls; using System.Text; using System.Reflection; using System.IO;

public partial class HomePage : System.Web.UI.Page {

   protected void Page_Load(object sender, EventArgs e)
   {
       string HOMEPAGE = "http://www.nfex.ru";
   HttpBrowserCapabilities caps = Request.Browser;
   if (caps.IsBrowser("IE") && (caps.MajorVersion > 5 ||
     caps.MajorVersion == 5 && caps.MinorVersion >= 5))
   {
           HomePageButton.Disabled = false;
           HomePageButton.Attributes["onclick"] = "SetHomePage(this)";
     Type t = this.GetType();
     if (!Page.ClientScript.IsClientScriptBlockRegistered(t, "SetHomePage"))
     {
       string js = BuildScriptCode(HOMEPAGE);
       Page.ClientScript.RegisterClientScriptBlock(t, "SetHomePage", js, true);
     }
       }
       else
           HomePageButton.Disabled = true;
   }
   private string BuildScriptCode(string url)
   {
       StringBuilder sb = new StringBuilder();
       sb.AppendLine("function SetHomePage(obj) {");
       sb.AppendLine("  obj.style.behavior=\"url(#default#homepage)\";");
       sb.AppendFormat("  obj.setHomePage(\"{0}\");\r\n", url);
       sb.AppendLine("}");
       return sb.ToString();
   }

}

</source>