Very simple AJAX question

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  • Steven
    #1

    Very simple AJAX question

    I have an online store catalog. On the page that displays all the category
    items (like "Dresses") I have a ListView with an embedded DataPager, and all
    this is wrapped with an AJAX UpdatePanel so the whole page doesn't have to
    refresh to get the next page of items. Do I have to preload all the images
    with client-side script on the initial load of the page, or is the handled
    somehow through the UpdatePanel during subsequent async updates? My guess
    is I have to load the pictures when the page initially loads....?

    if(!IsPostBack && !ScriptManager1 .IsInAsyncPostB ack)
    {
    //add client-side script to preload ALL possible pictures for this
    category
    //of the catalog?
    }

    Thanks!

    Steven


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    • Alexey Smirnov
      #2
      Re: Very simple AJAX question

      On Nov 19, 7:03 pm, "Steven" <sedison@protro nix_nospam_.com wrote:
      I have an online store catalog.  On the page that displays all the category
      items (like "Dresses") I have a ListView with an embedded DataPager, and all
      this is wrapped with an AJAX UpdatePanel so the whole page doesn't have to
      refresh to get the next page of items.  Do I have to preload all the images
      with client-side script on the initial load of the page, or is the handled
      somehow through the UpdatePanel during subsequent async updates?  My guess
      is I have to load the pictures when the page initially loads....?
      >
      if(!IsPostBack && !ScriptManager1 .IsInAsyncPostB ack)
      {
        //add client-side script to preload ALL possible pictures for this
      category
        //of the catalog?
      >
      }
      >
      Thanks!
      >
      Steven
      Hi Steven,

      it would work without preload. If you have an Image control in
      ListView, the UpdatePanel will manage updates.

        Comment

        • Steven
          #3
          Re: Very simple AJAX question

          Awesome, I'm assuming this would include an image button?
          Thanks for your response.

          Steven

          "Alexey Smirnov" <alexey.smirnov @gmail.comwrote in message
          news:25ea5431-b20a-4941-8cb2-3da4fb466f93@n1 0g2000yqm.googl egroups.com...
          On Nov 19, 7:03 pm, "Steven" <sedison@protro nix_nospam_.com wrote:
          I have an online store catalog. On the page that displays all the category
          items (like "Dresses") I have a ListView with an embedded DataPager, and
          all
          this is wrapped with an AJAX UpdatePanel so the whole page doesn't have to
          refresh to get the next page of items. Do I have to preload all the images
          with client-side script on the initial load of the page, or is the handled
          somehow through the UpdatePanel during subsequent async updates? My guess
          is I have to load the pictures when the page initially loads....?
          >
          if(!IsPostBack && !ScriptManager1 .IsInAsyncPostB ack)
          {
          //add client-side script to preload ALL possible pictures for this
          category
          //of the catalog?
          >
          }
          >
          Thanks!
          >
          Steven
          Hi Steven,

          it would work without preload. If you have an Image control in
          ListView, the UpdatePanel will manage updates.


            Comment

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