Agreed. If You deliver the record count with the pagesize info.

-Ken

> On Oct 20, 2016, at 6:26 AM, Thomas Maas <[email protected]> wrote:
> 
> But having a count of the total number of items doesn’t need to load all 
> those items in memory, does it?
> 
>> On 20 Oct 2016, at 10:59, Ken Wilson <[email protected]> wrote:
>> 
>> I have to agree with Mike T. … we deliver one page at a time also, using 
>> Angular and REST api calls. … performance is very important.
>> 
>> sincerely
>> Ken
>> 
>> 
>>> On Oct 19, 2016, at 4:04 PM, mike thompson <[email protected]> wrote:
>>> 
>>>> 
>>>> On Oct 18, 2016, at 11:36 AM, SJ Cox <[email protected]> wrote:
>>>> 
>>>> Hello fellow PatternFlyers!
>>>> 
>>>> This sprint I'm working on the conceptual design for pagination across 
>>>> data tables (includes card and list view)
>>>> 
>>>> I wanted to share my thoughts and progress and see if anyone had any 
>>>> concerns or feedback based on what is being done with tables in products 
>>>> to date.  What works, what doesn't?
>>>> 
>>>> With the addition of pagination, all elements/controls related to 
>>>> pagination would be found on the bottom of the table.  This includes:
>>>>    • See the number of items on a page and total number of pages
>>>>    • See how many pages of data there is.
>>>>    • View which page you are on (current location)
>>>>    • Modify how many pages are being displayed.
>>>>    • Skip to the next or previous page.
>>>>    • Skip multiple pages.
>>>>    • Navigate to the first/last page.
>>>> With this story we wanted to add the ability to select all items across 
>>>> multiple pages. Initially, if you select all on a page, it will select all 
>>>> items only on that page. Then it would prompt the user to select all items 
>>>> across the table. I came up with two options for the "select all" option.
>>>> 
>>>> OPTION 1
>>>> 
>>>> <Screen Shot 2016-10-18 at 11.07.41 AM.png> <Screen Shot 2016-10-18 at 
>>>> 11.07.49 AM.png>
>>>> The first option above shows a new row appearing within the table under 
>>>> the row headers, in the form of a message. This message informs you of how 
>>>> many items are selected and gives you the ability to select all.  Once all 
>>>> are selected, you have the ability to clear selection from the within the 
>>>> same message. 
>>>> 
>>>> Also, what would happen as you page through the table? I've seen it behave 
>>>> differently.  In google, as you page through, the selection is cleared. In 
>>>> this design I didn't think that would be a great experience. 
>>>> 
>>>> Option 1 Pros:  the addition of the message row is obvious and will draw 
>>>> the users attention.
>>>> Option 1 Cons: Table height would have to adjust to accommodate new 
>>>> message row.  Also, does the placement of the message make sense under the 
>>>> row headers?  Furthermore, it's redundant to show the number of items 
>>>> shown twice (upper right, and in message)
>>>> 
>>>> 
>>>> OPTION 2
>>>> 
>>>> Option two addresses the cons of option 1.   When selecting all items 
>>>> within a page, you get prompted to select all items within the table next 
>>>> to where it shows you total number of items selected. Same with clearing 
>>>> selection.
>>>> 
>>>> <Screen Shot 2016-10-18 at 11.08.03 AM.png>
>>>> <Screen Shot 2016-10-18 at 11.08.11 AM.png>
>>>> 
>>>> Option 2 Pros: No need for creating a new message row and shifting the 
>>>> table down.  No redundant info.
>>>> Option 3 Cons:  Might not be obvious that you can select all items. Does 
>>>> is seem hidden?
>>>> 
>>>> 
>>>> Let me know your thoughts, thank you!
>>> 
>>> Another perspective of the pagination is not only for perusing visual sets 
>>> of data. But also, for technical reasons (i.e., Memory constraints) the 
>>> pages are fetched one page at a time, to conserve memory. Thousands of 
>>> users with hundred of records in memory quickly bog down an application. 
>>> 
>>> The Select All 90 Items type of operations require these large result sets 
>>> to be in memory.
>>> 
>>> Sorry, if I’m bringing implementation details into conceptual design, but 
>>> it might alter the conceptual design.
>>> 
>>> 
>>> — Mike
>>> 
>>> 
>>>> 
>>>> 
>>>> -- 
>>>> Sarah Jane Cox 
>>>> User Interaction Designer 
>>>> User Experience Design Team
>>>> 
>>>> Red Hat, Inc.
>>>> 
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