So I am using the below code to do a xslt transformation. But I am pretty new to ASP.NET development so the errors are slightly misleading. This code is generating an error that states it doesn't understand physical paths and only virtual paths. What is a virtual path and how do I make one from a specified physical path?
<%# Master Language="C#" AutoEventWireup="true" CodeBehind="Site.master.cs" Inherits="ViewerASP.SiteMaster" %>
<%# Import Namespace="System.Xml" %>
<%# Import Namespace="System.Xml.Xsl" %>
<%# Import Namespace="System.Xml.XPath" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head runat="server">
<title>Viewer</title>
<link href="~/Styles/Site.css" rel="stylesheet" type="text/css" />
<script language="C#" runat="server">
public void Page_Load(Object sender, EventArgs E) {
string xmlPath = Server.MapPath("physicaladdresshere");
string xslPath = Server.MapPath("physicaladdresshere");
//Instantiate the XPathDocument Class
XPathDocument doc = new XPathDocument(xmlPath);
//INstantiate the XslTransform Class
XslTransform transform = new XslTransform();
transform.Load(xslPath);
//Custom format the indenting of the output document using XmlTextWriter
XmlTextWriter writer = new XmlTextWriter(Response.Output);
writer.Formatting = Formatting.Indented;
writer.Indentation=4;
transform.Transform(doc,null,writer);
}
</script>
<asp:ContentPlaceHolder ID="HeadContent" runat="server">
</asp:ContentPlaceHolder>
</head>
<div class="main">
<asp:ContentPlaceHolder ID="MainContent" runat="server"/>
</div>
</body>
</html>
Server.MapPath maps virtual path - that is path in a virtual IIS directory - to the physical path on a server. Apparently you do not need that, since you already have an absolute server-side path. Just remove these Server.MapPath calls:
string xmlPath = "C:\\Users\\kyle\\Desktop\\file.xml";
...
Related
net site with master and child pages. I am generating title via .cs code file on each child page. It works fine on the desktop. However, when I try to browse via mobile, it throws the above error. Below is code for master page.
<%# Master Language="C#" AutoEventWireup="true" CodeBehind="Site.master.cs" Inherits="xyz.SiteMaster" %>
<!DOCTYPE html>
<html lang="en">
<head runat="server">
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="css/styles.css" type="text/css" >
</head>
<body>
<form runat="server">
<asp:ContentPlaceHolder ID="MainContent" runat="server">
</asp:ContentPlaceHolder>
</form>
</body>
</html>
****child page code behind ***
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
HtmlTitle title = new HtmlTitle();
title.Text = "child page title";
Header.Controls.Add(title);
}
}
*** child page ****
<%# Page Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="childpage.aspx.cs" Inherits="xyz._Default" %>
<asp:Content ID="BodyContent" ContentPlaceHolderID="MainContent" runat="server">
</asp:Content>
what is the best way to handle this. Appreciate your thoughts on this.
I am a c# guy but I need to get a small vb.net test harness working. For the life of me I can't get this to work, and can't discover why. Here's the aspx:
<%# Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="_Default" %>
<!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 id="Head1" runat="server">
<title>Source Page</title>
</head>
<body>
<form id="form1" runat="server">
</form>
</body>
</html>
And here is the .vb:
Public Class _Default
Inherits System.Web.UI.Page
End Class
Always the error "Could not load type '_Default'." I even turned the folder into a true Application in IIS but it made no difference. What am I missing?
What am I missing?
Try the below two -
If your code-behind contains a namespace then modify your inherits attribute in Page directive as Inherits="namespace._Default".
If it doesn't, simply remove this Inherits attribute from Page Directive.
Changing the Codebehind attributename to CodeFile worked for me:
vb
CodeFile="Default.aspx.vb"
C#
CodeFile="Default.aspx.cs"
I have this page
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Charts : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Page.Header.Title = "Some title";
}
}
<%# Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Charts.aspx.cs" Inherits="Charts" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<ul>
<li>ReportMissionType</li>
</ul>
</asp:Content>
and in MasterPage.master there is title tag defined
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>Title</title>
<asp:ContentPlaceHolder id="head" runat="server">
</asp:ContentPlaceHolder>
<meta name="keywords" content="" />
<meta name="description" content="" />
</head>
but still when I try to set title from content page (Above)
Page.Header.Title = "Some title";
it gives me error which says that
Page.Header.Title Object reference not set to an instance of an object.
why can't i set title from the content page ?
In order to access children of the head element, you need to set the runat="server" attribute on the head element.
<head runat="server">
<title>Title</title>
...
</head>
According to the documentation, Page.Header:
Gets the document header for the page if the head element is defined with a runat=server in the page declaration.
In order to have elements accessible server-side as controls in WebForms, they need to run at the server:
<head runat="server">
In this advisory concerning the oracle padding exploit, Microsoft posted the following recommended error page:
<%# Page Language="C#" AutoEventWireup="true" %>
<%# Import Namespace="System.Security.Cryptography" %>
<%# Import Namespace="System.Threading" %>
<script runat="server">
void Page_Load() {
byte[] delay = new byte[1];
RandomNumberGenerator prng = new RNGCryptoServiceProvider();
prng.GetBytes(delay);
Thread.Sleep((int)delay[0]);
IDisposable disposable = prng as IDisposable;
if (disposable != null) { disposable.Dispose(); }
}
</script>
<!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></title>
</head>
<body>
<div>
An error occurred while processing your request.
</div>
</body>
</html>
What's with the Thread.Sleep for some value between 0-255? I don't want my server threads tied up for up to quarter of a second.
The reason is to alter the timing of the result. By making the return take a variable amount of time, you can't use the timing of the error return to determine the reason for failure, which is the approach that is used for the attack
I'm trying to add some share this javascript in between the head tags of an asp.net page but only if the page is not secure (!Request.IsSecureConnection). How do I get the code in the head tags to check for secure connection and then write the javascript if not secure. I've tried using <% %> blocks and RegisterStartupScriptBlock and it's not working
UPDATE:
Was able to get it to work using this in the Page_Load
if(!Request.IsSecureConnection)
{
HtmlGenericControl Include = new HtmlGenericControl("script");
Include.Attributes.Add("type", "text/javascript");
Include.Attributes.Add("src", "http....");
this.Page.Header.Controls.Add(Include);
}
This works for me:
<%# Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %>
<!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">
<% if (!Request.IsSecureConnection)
{ %>
<script type="text/javascript">
onload = function() {
alert('Page is not secure') };
</script>
<% } %>
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
</div>
</form>
</body>
</html>
<%if (!Request.IsSecureConnection)
{%>
<script ..........> </script>
<%}%>
This didn't work?
Update From your comments this didn't work. I'm guessing it has to do with something you are doing in your code behind. Did you try calling RegisterClientScriptBlock from your code behind? If you could post your aspx and code behind we might be able to help more.