Open URL in new tab instead of window using c# code behind

Question

• I have one PDF on my page. But I want it to be opened only when a user is logged in.
• For that I use a popup with login on the PDF link.
• When he/she tries to login using this popup, the code behind it will come in to the picture.
• And from there I have to decide whether or not the user can open the URL.
• If he/she is an authentic user, the page will get refreshed with the user login, and the PDF link will get opened in a new tab instead of a new window.

Answer 1

When user is authenticated, add a session variable to confirm authentication, use that session variable to check whether the user is authenticated or not and if authenticated, write a javascript code as:

window.open("http://www.yahoo.com");

So, after your page is refreshed post authentication, the window will open.

Answer 2

if you are using Hyperlink then use Target Attribute

Behavior for Target Attribute is depend on Browsers

 target="_blank"

older browser --> In New Window cause No tabbing Support.

Newer browser---> new Tab.

and if You Want you use Button then markup your button definition like this,

<asp:Button ........OnClientClick="NameofForm.target ='_blank';"/>

in code behind use redirection