How to get the database value without submitting the jsp page

Hi,
I have a form that has many fields (textbox/listbox). when user enter/change a value in the first textbox, I need to pass this value to the database to check whether it exist and get the other values to be displayed to other fields in that form (i cannot get the javascript value to be pass to jsp without reload/refresh/submit. But, I need to get the user entered value, so I thought of hidden popup, iframe, etc but not sure how I could apply and which best suit this case). If I submit the page then I can easily get the value thru 'request.getParameter("fieldname") but cannot use this because I cannot submit the page.
Pls help and possible provide me with the sample coding
Thanks

The best way for you is surely AJAX. But there is another way to stay compatible with older browsers:
Since the default method a browser supposed to get data is refresh, there is nothing unnatural in it. Browsers are optimized to refreshes, like cached images, etc..
So for these step-by-step things, you need to roll forward your data from page to page, and make the page to respond according the data it actually have. This can be easily achived with type="hidden" input fields in a form: the user will send you back all the data. Optionally you may show him the data you already have as visible text too.
A more generalised way to "pull" the data: you make a whole page you include every time you need an additional data. This page will receive 2 parameters from where you've included it. This 2 parameters are each indexed arrays with the datas you have to pull in (here the default value), and you need to push forward. Optionally there is a 3rd parameter, the url it have to return (as the form's action property).
And for them who now say that it would me more culture way to store this data in the session: Beware! Common mistake: Sessions are to store data about the user itself, not the datas for the next page! You never know what will be the next page! The user click some backward button and refresh button, and depending on your script, it may go stupid! Ok, not all the codes, but I've seen some. It's ok to store a sent file (fx. image) on the server, but always think the evil refresh and back buttons!

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How to get the value from a database without submitting a jsp page

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Thanks For any assistance provided.

Alright,here is an example for you for the first case.
Present.jsp:
============
<html:html>
<head>
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Emp Id:<html:text property="empId" size="5" onkeyup="if(true){this.form.elements[0].value='populateDetails';this.form.submit();}"/>
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Email Address:<html:text property="email" size="10" />
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==================
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
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<form-beans>
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<forward name="failed" path="/error.jsp"></forward>
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=====================
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thanks
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Denes Kubicek
http://deneskubicek.blogspot.com/
http://www.apress.com/9781430235125
http://apex.oracle.com/pls/apex/f?p=31517:1
http://www.amazon.de/Oracle-APEX-XE-Praxis/dp/3826655494
-------------------------------------------------------------------

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How to display the contents of the database values which are retrived.

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if you load it all into the buffer that is going to be very difficult. I would suggest loading it into some sort of collection. I like using an ArrayList.
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In Jsp TagLib how can I get the Attribute value (like JavaBean) in jsp

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How to pass a numeric value without its format to a subsequence?

I have a sequence with a numeric parameter that is interpreted as a 16-bit bit mask. The numeric format of the parameter of that sequence is therefore "%#.16b".
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I just want to debug my subsequence and see its parameter represented as "0b0000000000011010" when I supply a literal value of 26.
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Attachments:
numeric-format-02c.seq ‏35 KB

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Ken Ford
Adobe Community Expert
"noijet" <[email protected]> wrote in
message
news:efc7gq$n7s$[email protected]..
> Hi, I'd like to know how to get form upload value?
> I have my initial page, index.cfm that has a upload
input box (named
> "fileToUpload")that submits to action.cfm. In action.cfm
I tried to get
> the
> value of the input by doing
<cfoutput>#form.fileToUpload#</cfoutput> but
> instead I got a string like
>
("E:\JRun4\servers\cfusion\SERVER-INF\temp\cfusion-war-tmp\neotmp5263.tmp"),
> I
> expected it to be the value that was in the upload input
field (i.e.
> "E:\My
> Pictures\Flowers.jpg"). How do I get this?
> Thanks,
> noijet
>

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Hello Anybody, I have a question. Can any of you please suggest me how to make an xml file from the database table with all the rows? Note:- I am having the XSD Schema file and the resulted XML file should be in that XSD format only.

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How to get the database value without submitting the jsp page

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