ASP.NET

protected void Page_Load(object sender, System.EventArgs e)
{
 Session[COMPLETE] = false;

 //The rest of the page loading code down here

}

protected void Page_Load(object sender, System.EventArgs e)
{

   if (Session[COMPLETE] == null)
   {
        //Then we are in a state that we shouldn't be in, push back to the notification page.
        Response.Redirect("notification.aspx");
   }

   if (Session[COMPLETE] == true)
   {
        //Then the user has already taken the test, push forward to "thank_you"
        Response.Redirect("answerSheet.aspx");
   }

  ///The rest of the page code down here

}

protected void Page_Load(object sender, System.EventArgs e)
 {

   Session[COMPLETE] == true;

   //The rest of the page loading code down here

 }

arun$aini wrote:

You will be treated like this

public static DataTable getDataTable(string strFilename)
    {
        string SQL = "select * from [Sheet1$]";
         string connectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + strFilename + ";";
        connectionString += @"Extended Properties=""Excel 12.0;HDR=YES;""";
        OleDbConnection conn = new OleDbConnection(connectionString);
        OleDbCommand cmd = new OleDbCommand(SQL, conn);
        DataTable dt = new DataTable();
        OleDbDataAdapter da = new OleDbDataAdapter(cmd);
        da.Fill(dt);
        da.Dispose();
        conn.Dispose();
        cmd.Dispose();
        return dt;
    }