ASP.NET

Greg Chelstowski17-Jun-09 21:48

Greg Chelstowski

17-Jun-09 21:48

On the contrary, Vuyiswa, it is not as simple as you explain.
I have encountered a similar problem before.
I think the original question was: "If a user knows the absolute url to a pdf, how can we prevent them from seeing it?"
Obviously, since the pdf files are most likely kept in a virtual directory of a website, opening them should not be a problem at all (if one knows the virtual directory and the filename).

The way I did it was, I kept the pdf files in a private folder and read them using System.IO, then through the application streamed them and eventually displayed them.

I have tried various things, but the way I did it seemed like the most reasonable thing to do, and, well, secure (hopefully).

var question = (_2b || !(_2b));

Christian Graus17-Jun-09 21:50

Christian Graus

17-Jun-09 21:50

The way I do this stuff, and the best way, is to have a http handler, which will not return the file ( whose actual path is hidden ), unless the link came from my site also.

Christian Graus

Driven to the arms of OSX by Vista.

"! i don't exactly like or do programming and it only gives me a headache." - spotted in VB forums.

I can do things with my brain that I can't even google. I can flex the front part of my brain instantly anytime I want. It can be exhausting and it even causes me vision problems for some reason. - CaptainSeeSharp

Greg Chelstowski17-Jun-09 21:52

Greg Chelstowski

17-Jun-09 21:52

Yeah, I failed miserably doing that. Wink | ;)

Gotta do some more reading on HTTPHandlers, it would seem.

var question = (_2b || !(_2b));

Vimalsoft(Pty) Ltd17-Jun-09 21:54

17-Jun-09 21:54

Using http handler is a much simpler as Abhishek Sur said.

Vuyiswa Maseko,

Few companies that installed computers to reduce the employment of clerks have realized their expectations.... They now need more and more expensive clerks even though they call them "Developers" or "Programmers."

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.somee.com
http://www.vuyiswamaseko.tiyaneProperties.co.za
vuyiswa@its.co.za
http://www.itsabacus.co.za/itsabacus/

Abhishek Sur17-Jun-09 22:01

Abhishek Sur

17-Jun-09 22:01

And also place the file in a directory which cant be found from the Virtual path, means dont place it inside a virtual directory.

Just get the file through the handler from an unknown location, (say C:\private)

That will do the trick .. Rose | [Rose]

Abhishek Sur

My Latest Articles
Working with Excel using MDAC

Basics on LINQ and Lambda Expressions

Create .NET Templates

Vimalsoft(Pty) Ltd17-Jun-09 22:24

Html Encryption due to security reason?

17-Jun-09 22:24

True

Tridip Bhattacharjee17-Jun-09 20:51

Tridip Bhattacharjee

17-Jun-09 20:51

after rendering aspx page the html shows in browser and if we see the source of the page then user can see raw html. if there is anyway as a result i can encrypt html content after rendering it to browser but browser can read and show the result.if i can encrypt then user can not understan what is written in my html due to security reason. if it is possible then please let me know in detail.

tbhattacharjee

Re: Html Encryption due to security reason?

Abhishek Sur17-Jun-09 21:37

Abhishek Sur

17-Jun-09 21:37

I think it is not possible to encrypt your HTML.. as otherwise your browser will not render it correctly. Rather what you can do, is just strip spaces and new lines from the html so that everything will be rendered in a single line.

Do it in your custom handler. Also use GZip/Deflate compression to shrink the response.

s = Regex.Replace(s, "^\\s*",string.Empty, RegexOptions.Compiled | RegexOptions.Multiline);
s = Regex.Replace(s, "\\r\\n", string.Empty, RegexOptions.Compiled | RegexOptions.Multiline);
s = Regex.Replace(s, "<!--*.*?-->", string.Empty, RegexOptions.Compiled | RegexOptions.Multiline);

Just use regEx replace to do your job easy in your custom StreamFilter.
Hope you understand.

Abhishek Sur

My Latest Articles
Working with Excel using MDAC

Basics on LINQ and Lambda Expressions

Create .NET Templates

How to put java script....

igaurav17-Jun-09 20:50

17-Jun-09 20:50

Hi all,

I want to put this java script ["window.open('Organization.aspx','mywindow','width=750,height=600')"; ]

in treeview event TreeView1_SelectedNodeChanged1

so that on click of every node or sub node this window would open..

help me out please thanx

never let you down...always be happy..

Amol-11117-Jun-09 21:31

Amol-111

17-Jun-09 21:31

try this

if (!IsPostBack)
            {
                TreeNode Parentnode = new TreeNode("Home");
                TreeNode node = new TreeNode("Organization","","","'Organization.aspx","_blank");
                //node.NavigateUrl = "javascript:window.open('Organization.aspx','mywindow','width=750,height=600');";
                Parentnode.ChildNodes.Add(node);
                TreeView1.Nodes.Add(Parentnode);
            }

igaurav17-Jun-09 23:15

17-Jun-09 23:15

not working properly... for my tree view.
its only working for node "HOME" 's sun nod Organizatin.aspx
i want it like i click ANY node or sub node then this popup windows appear.
any way thanx a lot.

never let you down...always be happy..

himanshu256117-Jun-09 21:34

himanshu2561

17-Jun-09 21:34

Hi gaurav
Try this

if (!IsPostBack)
        {
          TreeView1.Attributes.Add("onclick", "javascript:window.open('Organization.aspx.aspx','mywindow','width=750,height=600');");
       }

himanshu

igaurav17-Jun-09 23:19

17-Jun-09 23:19

I want it in a way like if i click ANY node or sub node then this window wud appear.

through your code even i click joints of nodes then this window is appearing..

Thank You

never let you down...always be happy..

himanshu256117-Jun-09 23:58

himanshu2561

17-Jun-09 23:58

Hi,
May be this solve your problem

protected void TreeView1_SelectedNodeChanged(object sender, EventArgs e)
{
    ScriptManager.RegisterStartupScript(this, typeof(string), "OPEN_WINDOW", "window.open( 'http://www.google.com','mywindow','width=750,height=600' );", true);

}

himanshu

igaurav18-Jun-09 0:26

18-Jun-09 0:26

protected void TreeView1_SelectedNodeChanged1(object sender, EventArgs e)
{
Response.Write("<script>window.open('group.aspx?id=" + TreeView1.SelectedValue + "','mywindow','width=200,height=200')</script>");
}

This is the answer..

its working fine...!!

thanx a lot.

never let you down...always be happy..

Highlighting selected menu item with Content Pages

httplover18-Jun-09 4:52

httplover

18-Jun-09 4:52

<br />
TreeView1_SelectedNodeChanged1="NodeChg();"<br />
<br />
<javascript><br />
function NodeChg()<br />
{<br />
window.open('Organization.aspx','mywindow','width=750,height=600')";<br />
}<br />
</javascript>

-------------------------------------
看上面代码.

living none stoping.

NetQuestions17-Jun-09 20:49

NetQuestions

17-Jun-09 20:49

I have see the following strategy adopted.

==> Associate the body of the page with an ID ( Associate a list item (li ID="One")with an ID

==> Associate ul with a body (ul ID="Nav")

the three ids can be combined together in the CSS file to set background of
selected menu item.

Question: But what will I do if the menu is in the master page and page is a content page.

Content Pages do not have 'body' tag?

Re: Highlighting selected menu item with Content Pages

DoctorMick17-Jun-09 23:14

DoctorMick

17-Jun-09 23:14

It shouldn't make a difference to your CSS as when the page is rendered to the browser it will include the body tag from within your master page so as long as your body tag in the master page has the correct id ("Content" in the example above) you should be alright.

Re: Highlighting selected menu item with Content Pages

NetQuestions18-Jun-09 6:08

NetQuestions

18-Jun-09 6:08

Hi,

But won't master page always have the same id?

even if a different page is selected, master page's body will continue to have the same id!

Is there a method to change the id?

Thanks,
NetQuestions

Grid View Problem

Amit Patel198517-Jun-09 20:42

Amit Patel1985

17-Jun-09 20:42

Hi All ,

I have one grid grid view where i display search content. in this grid view i have one hyperlink field Which is used to navigate to other page

My problem is can i redirect to more than one page using DataNavigateUrlFormatString ="UpdateAppointment.aspx" based on condition.

Thanks all in advance

Amit Patel

Re: Grid View Problem

Vimalsoft(Pty) Ltd17-Jun-09 21:15

Set home page to center on screen

17-Jun-09 21:15

yes you can

use the if statements like

if (Session["Loginname"] == null)
{ 
     //redirect to login page
}
else
{ 
   //go to the specified page 
}

Hope it Helps

misCafe17-Jun-09 20:37

misCafe

17-Jun-09 20:37

Brothers,

I'm using Microsoft Visual Web Developer 2008 with ASP.Net to develop website. When I run the website, it does not display at the center of screen (always in left). How to set it to center of the screen.

Thanks,

Chuon Visoth
Angkor Wat - Cambodia
asp.net - c sharp beginner

Re: Set home page to center on screen

Vimalsoft(Pty) Ltd17-Jun-09 21:38