Question

I am trying to add a condition for a hyperlink that I have in my page.

Instead of just using a particular link like: <a href="help/Tutorial.html">Tutorial</a> I want to display different pages for different users. For example, if the user is logged in as Admin, they will be presented with different link than regular users.

I have modified my hyperlink as: <a onclick="displayTutorial_Click">Tutorial</a>

and added this code:

    protected void displayTutorial_Click(object sender, EventArgs e)
    {
        // figure out user information
        userinfo = (UserInfo)Session["UserInfo"];

        if (userinfo.user == "Admin")

            System.Diagnostics.Process.Start("help/AdminTutorial.html");

        else

            System.Diagnostics.Process.Start("help/UserTutorial.html");            
    }

But this didn’t work. Can anyone please help me to figure out how I can make the Tutorial link work properly? Thank you a lot in advance!!!

Answer 1

Wow, you have a huge misunderstanding how asp.net works.

This line of code

System.Diagnostics.Process.Start("help/AdminTutorial.html");

Will not redirect a admin user to a new site, but start a new process on the server (usually a browser, IE) and load the site. That is for sure not what you want.

A very easy solution would be to change the href attribute of the link in you page_load method.

Your aspx code:

<a href="#" runat="server" id="myLink">Tutorial</a>

Your codebehind / cs code of page_load:

...
if (userinfo.user == "Admin")
{
  myLink.Attributes["href"] = "help/AdminTutorial.html";
}
else 
{
  myLink.Attributes["href"] = "help/otherSite.html";
}
...

Don’t forget to check the Admin rights again on "AdminTutorial.html" to "prevent" hacking.