session managememt for login page

when the user is authenticate successfully then get the data from the table from which you authenticate the user and store that data into session like this



C# syntax

session["Userid"] = dt.rows[0]["UserName"];

in vb

Session("UserId") = dt.rows(0)("UserName")

here user name is the column of the database table in which you store the user data.

Yeah as Shabbir suggested-

C# syntax
session["Userid"] = dt.rows[0]["UserName"];
Response.Redirect("AnotherPage.aspx");  

--AnotherPage.aspx

On this page's Page load Function check whether the sessions exists or not by using "If" statement,If User Session Doesnot exists then redirect to Login Page as

if(session["Userid"]==null)
{
Response.Redirect("login.aspx");  
}

Hi,
For this,

first, You can to assign the value of session varable on click event of login button (after Authentication and just before the Redirect to Another page). To assign the value, Use the following code in VB:

Session("VariableName")="SomeValue"

and the load event of every page that comes after login (i.e. All the secured pages that you want user cant see wihout login), just check whether Session("VariableName") is null or not, if it is null, then redirect it to Login Page. Here is the code for the same:

If session("VariableName") Is Nothing Then
    Response.Redirect("login.aspx")
End If