why I need to click refresh button in order to see session values

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  • =?Utf-8?B?YzY3NjIyOA==?=
    #1

    why I need to click refresh button in order to see session values

    Hi all,
    Recently, I just found out that our program behaves differently from before.

    in our asp, in order to prevent data disppearing problem in form fields,we
    use session variable to display the field values if a customer click "back"
    button on the page2.asp in the browser,(the session variables
    Session(aQuoteN ame(iPerson)&"T ripCost") is set up in the page2.asp) i.e.
    then in the page1.asp, we use:
    <input name="<%=aQuote Name(iPerson)& "TripCost" %>" type="text" size="6"
    value="<%=Sessi on(aQuoteName(i Person)&"TripCo st")%>">
    to display the tripcost. This works very well in the past all the time. But
    today, when I do the similar programming, whenever I click "back" button on
    page2.asp, the data on the page1.asp all disappeared and I have to click
    "refresh" button on page1.asp in order to display all the session variables.
    What's going on, does this have to have something to do with window security
    patches, I didn't have anything changed in the program or IIS configuration.
    I also test the production version, same thing happened which it never
    happend before???
    Can you shed a light on me?
    --
    Betty
    Tags: None
    • Anthony Jones
      #2
      Re: why I need to click refresh button in order to see session values


      "c676228" <bettys@communi ty.nospamwrote in message
      news:35B705D9-961C-4B8D-BB33-EF62780D503D@mi crosoft.com...
      Hi all,
      Recently, I just found out that our program behaves differently from
      before.
      >
      in our asp, in order to prevent data disppearing problem in form fields,we
      use session variable to display the field values if a customer click
      "back"
      button on the page2.asp in the browser,(the session variables
      Session(aQuoteN ame(iPerson)&"T ripCost") is set up in the page2.asp) i.e.
      then in the page1.asp, we use:
      <input name="<%=aQuote Name(iPerson)& "TripCost" %>" type="text" size="6"
      value="<%=Sessi on(aQuoteName(i Person)&"TripCo st")%>">
      to display the tripcost. This works very well in the past all the time.
      But
      today, when I do the similar programming, whenever I click "back" button
      on
      page2.asp, the data on the page1.asp all disappeared and I have to click
      "refresh" button on page1.asp in order to display all the session
      variables.
      What's going on, does this have to have something to do with window
      security
      patches, I didn't have anything changed in the program or IIS
      configuration.
      I also test the production version, same thing happened which it never
      happend before???
      Can you shed a light on me?
      Are you sure it was working before? The browser is not obliged to re-fetch
      the previous page from the origin server when you hit the back button. In
      fact in my experience it rarely does.



        Comment

        • Steven Cheng[MSFT]
          #3
          Re: why I need to click refresh button in order to see session values

          Hi Betty,

          As for the behavior you mentioned, I've try testing it on my local side and
          seems haven't been able to repro the exact same symptom. Have you tried
          visiting that page from different client machine to see if you'll get the
          consistent result?

          One thing I could get is the client-browser caching, however, normally
          client cache will also display the input values from previous view. Anyway,
          you can try add the following like code snippet to disable client cache for
          your input page to see whether it can help some.


          =============== =============
          <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dt d">
          <%
          pStr = "private, no-cache, must-revalidate"
          Response.Expire sAbsolute = #2000-01-01#
          Response.AddHea der "pragma", "no-cache"
          Response.AddHea der "cache-control", pStr
          %>
          <html xmlns="http://www.w3.org/1999/xhtml" >
          <head>
          <title>Untitl ed Page</title>
          </head>
          <body>
          <form id="form1" method="post" action="test.as p">
          <input id="Text1" name="Text1" type="text" value='<%= Session("Text1" )
          %>' />
          <input id="Text2" name="Text2" type="text" value='<%= Session("Text2" )
          %>' />
          <input id="Submit1" type="submit" value="submit" />

          </form>

          </body>
          </html>
          =============== ==============

          Sincerely,

          Steven Cheng

          Microsoft MSDN Online Support Lead



          =============== =============== =============== =====

          Get notification to my posts through email? Please refer to
          Microsoft Learn: Build skills that open doors in your career
          http://msdn.microsoft.com/subscriptions/managednewsgroups/default.aspx#notif
          Gain technical skills through documentation and training, earn certifications and connect with the community

          ications.



          Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
          where an initial response from the community or a Microsoft Support
          Engineer within 1 business day is acceptable. Please note that each follow
          up response may take approximately 2 business days as the support
          professional working with you may need further investigation to reach the
          most efficient resolution. The offering is not appropriate for situations
          that require urgent, real-time or phone-based interactions or complex
          project analysis and dump analysis issues. Issues of this nature are best
          handled working with a dedicated Microsoft Support Engineer by contacting
          Microsoft Customer Support Services (CSS) at
          http://msdn.microsoft.com/subscripti...t/default.aspx.

          =============== =============== =============== =====



          This posting is provided "AS IS" with no warranties, and confers no rights.

            Comment

            • =?Utf-8?B?YzY3NjIyOA==?=
              #4
              Re: why I need to click refresh button in order to see session val

              Yes, Anthony. It worked perfectly fine. The reason I am 100% sure is before
              we never used session variables to retain field values in the form and a lot
              of customers complained about and I fixed that long time ago after using
              session variables and shocked yesterday, it doesn't work that way anymore.
              --
              Betty


              "Anthony Jones" wrote:
              >
              "c676228" <bettys@communi ty.nospamwrote in message
              news:35B705D9-961C-4B8D-BB33-EF62780D503D@mi crosoft.com...
              Hi all,
              Recently, I just found out that our program behaves differently from
              before.

              in our asp, in order to prevent data disppearing problem in form fields,we
              use session variable to display the field values if a customer click
              "back"
              button on the page2.asp in the browser,(the session variables
              Session(aQuoteN ame(iPerson)&"T ripCost") is set up in the page2.asp) i.e.
              then in the page1.asp, we use:
              <input name="<%=aQuote Name(iPerson)& "TripCost" %>" type="text" size="6"
              value="<%=Sessi on(aQuoteName(i Person)&"TripCo st")%>">
              to display the tripcost. This works very well in the past all the time.
              But
              today, when I do the similar programming, whenever I click "back" button
              on
              page2.asp, the data on the page1.asp all disappeared and I have to click
              "refresh" button on page1.asp in order to display all the session
              variables.
              What's going on, does this have to have something to do with window
              security
              patches, I didn't have anything changed in the program or IIS
              configuration.
              I also test the production version, same thing happened which it never
              happend before???
              Can you shed a light on me?
              >
              Are you sure it was working before? The browser is not obliged to re-fetch
              the previous page from the origin server when you hit the back button. In
              fact in my experience it rarely does.
              >
              >
              >
              >

                Comment

                • =?Utf-8?B?YzY3NjIyOA==?=
                  #5
                  Re: why I need to click refresh button in order to see session val

                  Superb, Steven, your code works perfectly fine. After I cut and pasted that
                  part into my page1.asp. It behaves as I expected. Can you recommand me
                  several resouces(web site, book etc.) that I can refer that part of
                  knowledge. Response.AddHea der...
                  You are my lucky star.
                  --
                  Betty


                  "Steven Cheng[MSFT]" wrote:
                  Hi Betty,
                  >
                  As for the behavior you mentioned, I've try testing it on my local side and
                  seems haven't been able to repro the exact same symptom. Have you tried
                  visiting that page from different client machine to see if you'll get the
                  consistent result?
                  >
                  One thing I could get is the client-browser caching, however, normally
                  client cache will also display the input values from previous view. Anyway,
                  you can try add the following like code snippet to disable client cache for
                  your input page to see whether it can help some.
                  >
                  >
                  =============== =============
                  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
                  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dt d">
                  <%
                  pStr = "private, no-cache, must-revalidate"
                  Response.Expire sAbsolute = #2000-01-01#
                  Response.AddHea der "pragma", "no-cache"
                  Response.AddHea der "cache-control", pStr
                  %>
                  <html xmlns="http://www.w3.org/1999/xhtml" >
                  <head>
                  <title>Untitl ed Page</title>
                  </head>
                  <body>
                  <form id="form1" method="post" action="test.as p">
                  <input id="Text1" name="Text1" type="text" value='<%= Session("Text1" )
                  %>' />
                  <input id="Text2" name="Text2" type="text" value='<%= Session("Text2" )
                  %>' />
                  <input id="Submit1" type="submit" value="submit" />
                  >
                  </form>
                  >
                  </body>
                  </html>
                  =============== ==============
                  >
                  Sincerely,
                  >
                  Steven Cheng
                  >
                  Microsoft MSDN Online Support Lead
                  >
                  >
                  >
                  =============== =============== =============== =====
                  >
                  Get notification to my posts through email? Please refer to
                  Microsoft Learn: Build skills that open doors in your career
                  http://msdn.microsoft.com/subscriptions/managednewsgroups/default.aspx#notif
                  Gain technical skills through documentation and training, earn certifications and connect with the community

                  ications.
                  >
                  >
                  >
                  Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
                  where an initial response from the community or a Microsoft Support
                  Engineer within 1 business day is acceptable. Please note that each follow
                  up response may take approximately 2 business days as the support
                  professional working with you may need further investigation to reach the
                  most efficient resolution. The offering is not appropriate for situations
                  that require urgent, real-time or phone-based interactions or complex
                  project analysis and dump analysis issues. Issues of this nature are best
                  handled working with a dedicated Microsoft Support Engineer by contacting
                  Microsoft Customer Support Services (CSS) at
                  http://msdn.microsoft.com/subscripti...t/default.aspx.
                  >
                  =============== =============== =============== =====
                  >
                  >
                  >
                  This posting is provided "AS IS" with no warranties, and confers no rights.
                  >
                  >

                    Comment

                    • Steven Cheng[MSFT]
                      #6
                      Re: why I need to click refresh button in order to see session val

                      Thanks for your reply Betty,

                      I'm glad that the suggestion is of assistance. I'm not sure about any books
                      on classic ASP since ASP.NET is currently popluar for web application
                      dev:). For resource site, I think the FAQ site below is quite good:

                      http://tutorials.aspfaq.com/


                      You can find many useful suggestion for classic ASP there.

                      BTW, I've also point it in your another thread "multiple image button
                      submit..."

                      Hope this also helps.

                      Sincerely,

                      Steven Cheng

                      Microsoft MSDN Online Support Lead


                      This posting is provided "AS IS" with no warranties, and confers no rights.

                        Comment

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