Guriddo » Topic: How does true scrolling work?

How does true scrolling work?

Guriddo
How does true scrolling work?

This topic has 13 replies, 3 voices, and was last updated 16 years, 4 months ago by monoclast.

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February 8, 2010 at 10:28 pm #75434

monoclast
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The demonstration page for New in Version 3.6 > True Scrolling Rows
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Viewing 13 replies - 1 through 13 (of 13 total)

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February 10, 2010 at 2:55 pm #92624

tony
Keymaster

Hello,

This is right. There should be no change in the server response. Everthing is done client side, the same way as you prepare the paging mechanizm.

Also it seems that your sever response is not correct. There is not somthing special. Just look deeper in the demo.

Best Regards

Tony

February 16, 2010 at 9:49 pm #92737

monoclast
Participant

LOL… I truly wish I could “look deeper in the demo”, but the demo isn't very deep to begin with! You don't allow us to view the PHP file in the demo. And again, the demo doesn't tell exactly which options are required to make it work. Obviously it's not as straight forward as you seem to indicate!

February 16, 2010 at 10:23 pm #92739

monoclast
Participant

Wow… This forum really screws up pasted code!

So if you want to see the actual code, here is an archive of it – I included a mySQL dump of the actual database being queried as well:

grid_test.zip

The first person to tell me what is wrong with the code gets a gold star.

February 17, 2010 at 11:40 am #92751

tony
Keymaster

Hello,

How many goldstars?

The error is in your php script just replace

$s .= “n”;
$s .= “

February 17, 2010 at 5:33 pm #92784

monoclast
Participant

Aha!!!! It works!!!!! Thank you so much for spotting that!

I have fixed my sloppy Javascript as well, thanks to you.

February 17, 2010 at 7:31 pm #92785

monoclast
Participant

One last question:

If I change the index.js rowNum: argument to 1000, the grid only loads the first 1000 rows. Is there something else I need to change to make it support loading 1000 rows at a time, or is it limited to auto-loading only 100?

February 20, 2010 at 10:07 am #92831

tony
Keymaster

Hello,

Look afgain in your php script, maybe you return only 100 from here

No limitations at all

Tony

February 20, 2010 at 5:10 pm #92866

monoclast
Participant

Ok thanks I'll debug it!

March 8, 2010 at 9:40 pm #93202

monoclast
Participant

I find now that this is actually not working correctly at all! Apparently there is a bug in jqGrid!

Only the first 400 rows are loaded, and after that jqGrid just stops invoking the PHP file!

I have documented it here with a live example:

/blog/?page_id=393/help/true-scrolling-bug/

Any comments would be appreciated!

March 9, 2010 at 10:50 pm #93245

rudiger
Participant

tony said:

Hello,

How many goldstars?

The error is in your php script just replace

$s .= “n”;
$s .= “

March 10, 2010 at 1:02 am #93250

monoclast
Participant

As I stated in my initial post, it sure would be nice if you would actually allow people to read the PHP you are using on your demo page.

Without being able to read the PHP we are left strictly guessing from seemingly incorrect documentation!

March 10, 2010 at 1:25 am #93252

rudiger
Participant

This looks like a bug.

The behavior for the examples is way different in IE8 (version 8.0.7600.16385) and in Firefox (version 3.6)…

IE8 won't display more than 50,000 (in the 500,000 row example).

March 10, 2010 at 1:42 am #93253

monoclast
Participant

Well, since we can't persuade you to help, I looked at the code again with a fresh mind today, and I figured it out on my own.
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