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What is the best practice for passing variables from one HTML page to another?

Answer 1

+1 A:

It's good one, but better is to use some script language such as JSP,PHP, ASP....and you can use simple POST and GET methods.

vaske 2008-10-19 15:32:07

Answer 2

+1 A:

pkario 2008-10-19 15:47:08

Answer 3

+1 A:

One way to send over variables using POST to another page is to make the link to the subsequent page a submit input on a form where the action attribute is your target page. For every variable you have, you can include using inputs of attribute type "hidden" in this form, making only the button visible.

Another option is to dynamically generate links on the page with something like PHP where you basically repopulate the current GET queries.

Finally, you can always store this information in the PHP $_SESSION array and not have to worry about continually passing these variables through site navigation.

Your choice will depend on how many navigational options there are where you'd like to keep the same variables. It will also depend on how secure you'd like your back end to be and the amount you'd like to disclose to the advanced web user.

Robert Elwell 2008-10-19 15:48:26

Answer 4

A:

Assuming that you are limited to using html pages, I think the best approach would be to pass the id along on the query string to the next page. It is relatively easy to pull that value back off the query string on the next page. If you need to be a little more stealthy about passing the variable (or you need the variable to persist for more than one page), you could also set a cookie and retrieve it on the next page.

Mitch 2008-10-19 15:50:18

Answer 5

+2 A:

You could just use a hidden input field; that gets transmitted as part of the form.

<html>
  <head>
  </head>
  <body>
    <script type="text/javascript">
      function updateSelectedItemId() {
        document.myForm.selectedItemId.value = 2;
        alert(document.myForm.selectedItemId.value);

       // For you this would place the selected item id in the hidden
       // field in stead of 2, and submit the form in stead of alert
      }
    </script>

    Your grid comes here; it need not be in the form

    <form name="myForm">
      <input type="hidden" name="selectedItemId" value="XXX">
      The submit button must be in the form.
      <input type="button" value="changeSelectedItem" onClick="updateSelectedItemId()">
    </form>
  </body>
</html>

extraneon 2008-10-19 18:36:20

Forgot to say, a button which calls document.myForm.submit() may also be out of the form. Only a type=submit must be IN the form itself.

extraneon 2008-10-20 04:47:04

Thanks everyone! I'll go with this solution since it works well and easy and straightforward to implement.

Walter 2008-10-21 04:08:19

Answer 6

+1 A:

If you are only going to need the ID on the subsequent pages, then you can pass the id as a query string parameter.

But there will be times when you need to relay more information and passing a variety of parameters to different pages and having to maintain different sets of parameters for different pages can get a little hairy. When this is the case I'd suggest that you keep a hidden field on the form and create an argument object that stores each of your parameters. Serialize the argument object with JSON and store this in you hidden field. Post the form back to the server. When the next page loads, deserialize the object and retrieve the values you need.

David Robbins 2008-10-19 19:12:45

Answer 7

A:

Since you are trying to do this in a Grails application you do have a choice of using Flash scope. This might not make any sense if you want to go directly from one HTML page to the next as the scope would be defined in a controller. If you do not need to do any sort of processing between requests, I'd suggest using a hidden form field to keep it simple.

http://grails.org/Controllers+-+Controller+Scopes

Ed.T 2008-10-20 17:10:40

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What is the best practice for passing variables from one HTML page to another?

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