Web Development

Tuning question: JavaScript to generate options inside select

7-Dec-07 19:55

Are you using the non-english version of OS or something(eg. VS, SQL or etc)?? it might cause this issue.. I think you should set the current culture to English before exporting the excel.

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

Stephan Pilz7-Dec-07 3:06

Stephan Pilz

7-Dec-07 3:06

Hello togetherm

I have a self written AJAX-Combobox and I have a tuning problem inside javascript.

I get many records from server and will fill a client side combobox (select element) with all records like this:

for (var i = 0; i < length; i++) {
	oSel.options[i] = new Option (arrT[i], arrV[i], false, false);
}

This takes 30 seconds for 3600 array elements (-> 3600 options will be created).

Have anybody an idea, how I can create the options very very faster?

Thank you very much
Stephan

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| Stephan Pilz   stephan.pilz@stephan-pilz.de |
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Re: Tuning question: JavaScript to generate options inside select

Michael Sync7-Dec-07 4:24

Re: Tuning question: JavaScript to generate options inside select

7-Dec-07 4:24

Just an idea. (not so sure whether it will work with your self-written Ajax-combobox).

What about loading the data on demand? Like Microsoft Live Search result or dzone search result. In your case, it will be in your combobox instead of a page. You have 3600 records in the database, right? firstly, you can load a few records (50 or 100 records) and add them to your combobox. then, when the user scroll down then you can load the more records on demand...

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

Stephan Pilz7-Dec-07 4:40

Stephan Pilz

7-Dec-07 4:40

Yes. But (sorry for my stupid answer) I have no time to implement it. Have only time to make the line inside the loop faster.

Stephan

                   \\\|///
                 \\  - -  //
                  (  @ @  )
+---------------oOOo-(_)-oOOo-----------------+
| Stephan Pilz   stephan.pilz@stephan-pilz.de |
|                <a href="http://www.stephan-pilz.de">www.stephan-pilz.de</a>          |
|                ICQ#: 127823481              |
+-----------------------Oooo------------------+
                 oooO   (   )
                (   )    ) /
                 \ (    (_/
                  \_)

Re: Tuning question: JavaScript to generate options inside select

Michael Sync7-Dec-07 5:20

Re: Tuning question: JavaScript to generate options inside select

7-Dec-07 5:20

Stephan Pilz wrote:
Have only time to make the line inside the loop faster

Okay. All the best!

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

Shog⁹7-Dec-07 5:54

Re: Tuning question: JavaScript to generate options inside select

7-Dec-07 5:54

As Michael suggested, your best bet is to find a way of putting fewer items in the list. Not only will that speed up the routine, but you may actually find that your end-user is able to find items in the list more quickly as well...

Otherwise, try building the HTML for the options in-memory and blasting it all out at once by assigning it to oSel.innerHTML. Might be a little faster, depending on the browser in use.

Michael Sync7-Dec-07 19:48

Problem with ASP.Net AJAX HoverMenu And Rounded Corner Extender

7-Dec-07 19:48

Shog9 wrote:
try building the HTML for the options in-memory and blasting it all out at once by assigning it to oSel.innerHTML. Might be a little faster, depending on the browser in use

Yeah. I think this is good idea too..

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

Member 46484916-Dec-07 20:16

Member 4648491

6-Dec-07 20:16

I have a problem in HOVER MENU and ROUNDED CORNER EXTENDER control of ASP.Net AJAX....
I took a label and 3 link buttons in a panel and tuk hover menu extender....set the properties of it like the
Target control id=Label1;
Popup Control id=Panel1;
but i want the panel with rounded corners at the bottom...so i tuk a rounded corner extender control and set its Targetcontrol id = Panel1...
Here comes my problem... the panel1 which is Popup Control id for HOVER MENU is not at all displaying the link buttons that are present in it....
That is the bottom of the panel is rounded but the hover menu functionality is not working at all... ....
Cud u plz help me out of this problem...

Re: Problem with ASP.Net AJAX HoverMenu And Rounded Corner Extender

Shog⁹7-Dec-07 5:50

Re: Problem with ASP.Net AJAX HoverMenu And Rounded Corner Extender

7-Dec-07 5:50

Perhaps asking this ASP.NET question in the ASP.NET forum might get you somewhere...

Member 46484919-Dec-07 19:06

Member 4648491

9-Dec-07 19:06

Hi Shog...Thanks for the reply...Since this is the AJAX Section i have posted my question over here.... Smile | :)

Regards
Abhishek

Re: Problem with ASP.Net AJAX HoverMenu And Rounded Corner Extender

Shog⁹10-Dec-07 3:36

Can PASTE be disabled for asp:textbox?

10-Dec-07 3:36

The problem is, your question has little or nothing to do with AJAX; ASP.NET AJAX isn't quite the same thing.

alexvw6-Dec-07 9:08

alexvw

6-Dec-07 9:08

Hi,

I wrote a javascript routine for the onKeydown event to prevent users from typing letters in certain textboxes Poke tongue | ;-P

. However, a user could still PASTE non-numeric content from the clipoard. I also wrote a javascript routine for the onChange event of these textboxes, but it only works if the users sets the focus on another control Cry | :((

.

I found that the onChange event does not fire if the user clicks the summit button right after pasting the contents of the clipboard. Is there any way to prevent pasting from the clipboard to these only-number-textboxes? Confused | :confused:

thanks.

Fred_Smith6-Dec-07 10:11

Fred_Smith

6-Dec-07 10:11

I don't know - but even if there was I would caution against using it.

1) Pasting can be useful - people can copy/paste their tel / security number / whatever in without fear of typos.

2) "Make a better system, and a better fool will come along." This si a well known truism - ie you're wasting your time.

3) You may well piss users off - me, for example. I *hate* it when sites (try to) block right-click functions for example. Makes me all the more determined to get round it, or go elsewhere if I can.

4) People can always disable Javascript - so you will have to code for the possibility of incorrect input anyway - ie you're wasting your time.

You will do better to validate their input both BEFORE submitting the page (for the user's benefit) and AFTER (for yours) and present the user with a notice if appropriate.

Fred

alexvw7-Dec-07 9:08

alexvw

7-Dec-07 9:08

Thank you Fred for your arguments. They do make sense. Rarely things are just as we want them to be.

I had forgoten that javascripts can be disabled Frown | :(

Have a great weekend!

Alex.

Shog⁹7-Dec-07 5:54

7-Dec-07 5:54

IE has an onpaste event that you could use to strip non-numeric chars from the text after a paste. Mozilla/Firefox has oninput that fires immediately when the text changes for any reason (typing, pasting, drag'n'drop...). Between those two events, you should be able to handle things...

Re: Adding XSD to webmethods

alexvw7-Dec-07 9:10

alexvw

7-Dec-07 9:10

Hi Shog,

Thank you for your hints, I believe I'll be able to do the trick with them.

Have a great weekend!

Alex.

Adding XSD to webmethods

Sameer Narkar6-Dec-07 1:20

Sameer Narkar

6-Dec-07 1:20

Is it possible to apply xsd to each webmethod in asp.net. If yes then how ?

Please help.

Regards,
Sameer J Narkar

Paddy Boyd6-Dec-07 1:43

Paddy Boyd

6-Dec-07 1:43

Can you elaborate slightly on what you mean? How do you apply an xsd to a webmethod?

Disable toolbar in Mozila firefox 3 Beta 1

Sachin Pimpale5-Dec-07 23:01

Sachin Pimpale

5-Dec-07 23:01

hi all
i want to disable menubar,toolbar,ststusbar in my application i used following Paramenters in window.open

location=no,status=no,menubar=no,scrollbars=auto,resizable=no,alwaysRaised,dependent=no,titlebar=no,toolbar=no

It works with IE7 & Mozila Firefox 2.0 but it shows toolbar in Mozila Firefox 3 Beta 1
please suggest
Thanks in Advance

The Stifler
--
Bugs can neither be created nor be removed from software by a developer. They can only be converted from one form to another. The total number of bugs in the software always remain constant.

Re: Disable toolbar in Mozila firefox 3 Beta 1

Michael Sync6-Dec-07 0:23

Re: adding menus using html

6-Dec-07 0:23

I think that there might be some problems in FF3 beta1. You can either report this to Mozilla team or wait until they release.

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

adding menus using html

srinivas4315-Dec-07 20:27

srinivas431

5-Dec-07 20:27

i want to add menus in my project using html or javascript
like in our www.codeproject.com we have "Message Boards" under that we hav different categories like visual c#,c++,asp.net,c#.net etc..,

Christian Graus5-Dec-07 22:22

Christian Graus

5-Dec-07 22:22

This is quite complex, and on the other hand, there are tons of free DHTML menus you can download. Did you try google ?

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Re: adding menus using html

Shog⁹6-Dec-07 9:54