Databases
StackOverflow2013
Postsdbo
POPage refresh Vs IsPostBack
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POPage refresh Vs IsPostBack
    primarykey
    data
    text
    <p>I've got an index page which sends users to an edit products page on separate browser tabs.</p> <p>For each products edited the index rewrites the Session["ProductID"].</p> <p>The Edit page then has the following code to have a unique identifier for this tab and product:</p> <pre><code>if (!IsPostBack) //first time page load { Random R = new Random(DateTime.Now.Millisecond + DateTime.Now.Second * 1000 + DateTime.Now.Minute * 60000 + DateTime.Now.Minute * 3600000); PageID.Value = R.Next().ToString(); Session[PageID.Value + "ProductID"] = Session["ProductID"]; } </code></pre> <p>This works, and when the same user opens multiple tabs I only reference the Session[PageID.Value + "ProductID"] in my code so that I always have the proper ID. (I'm working in a trusted environment this is for an intranet, therefore I'm not too bothered with the level of security).</p> <p>My issue occurs if the user does a page refresh by hitting the F5 key. At which point the Session[PageID.Value + "ProductID"] gets the Session["ProductID"] of the last product he opened.</p> <p>For example:</p> <p>User 1 opens product1 in tab1</p> <p>User 1 opens product2 in tab2</p> <p>Whenever they use the tool normally, everything works fine. However if:</p> <p>User 1 on product1 page hits the refresh button (F5) the product1 page becomes product2 page</p> <p>Is there a way to detect a page refresh from a "first load/redirect from another page" so that I can then tell my page not to update my Session[PageID.Value + "ProductID"]?</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USmarcind
    1. USLanFeusT
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POPage refresh Vs IsPostBack
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POPage refresh Vs IsPostBack
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POPage refresh Vs IsPostBack
      1. This table or related slice is empty.
      1. VTUpMod
    1. COIt's worth quickly testing whether testing the presence of Request.Headers["HttpReferer"] works.
      singulars
      1. POPage refresh Vs IsPostBack
      1. USPeter Taylor
    2. COI tried with Request.UrlReferrer.ToString() and when I load the page the first time I get the Index page as referrer. Unfortunately if I refresh the page with F5 I still get the Index page. The only way for the referrer to change is if I do a postback on the Edit page then the referrer becomes the Edit page.
      singulars
      1. POPage refresh Vs IsPostBack
      1. USLanFeusT
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload