how i get all options value from select tag

fuadhamidov · Oct 10, 2003

hi
i need to get all options value from select tag. i have some code like
<select name=TEST size=5>
<option value='...'>large
<option value='...'>small
...
</select>
is there any method to get all options value. ot smth like that

venur · Oct 10, 2003

Hi,

You need to use javascript to send all values of a select tag to the server. On the server you can use request.getParameterValues() which will return the array of strings, which has all the values of the select tag.

Cheers
-Venu

Hattusas · Oct 11, 2003

Why do you need such a thing by the way?

Salih Sipahi
Software Engineer.
City of Istanbul Turkey
s.sipahi@sahinlerholding.com.tr

fuadhamidov · Oct 12, 2003

because i fill select tag by using js. and i want all option that i have filled in it.
now OK. i can read request.getParameterValues("< select.name >&quot

;
thanks

fuadhamidov · Oct 27, 2003

hi
i have some problem with request.getParameterValues(). it works a while (or i didn't see ita error ) and after i have changed some code i see it gets only selected value.
i don't know where is my mistake
my code

menu.jsp
<SELECT NAME="SIZE2" size='5'>
</SELECT></TD></TR>
<button name="SUBMIT" type=button onclick='insert()' value='Insert'>Insert<button>

//function 'insert() -> insert options

target.jsp
String size2[] = request.getParameterValues( "SIZE2" );
System.out.println( size2.length );
System.out.println( size2[0] );
// prints 1 and selected option's value but i need all options' value

sedj · Oct 27, 2003

>>> System.out.println( size2[0] );

This is just printing the first element of the size2 array - you need to loop the array to display all elements ...

fuadhamidov · Oct 27, 2003

yes, i know
>>>System.out.println(size2.length);
prints 1

byam · Oct 27, 2003

request.getParameterValues( ); only return the selected value. you need separate hidden field to send all option to server.

e.g.

Code:

<select name=TEST size=5> 
  <option value='...'>large
  <option value='...'>small
  ...
</select> 

<!-- replace all options here again with hidden field -->
<input type=hidden name=testOptions value=large/>
<input type=hidden name=testOptions value=small/>
...

Then in the server side.
you can do request.getParameterValues("testOptions&quot

to retrieve the hidden field values for the options.

venur · Oct 27, 2003

Hi,

Try this, If you dont want to use the Java Script follow the byam suggition of storing the values into hidden fields.

Below Example uses the Java Script.

<script language="javascript">
function allOptions(){
List = document.forms[0].chosen;
//alert(List.length);
for (i=0;i<List.length;i++)
{
List.options.selected = true;
}
}

</script>
<body>
<form method="POST" action="testselect.jsp" onsubmit="allOptions()">
<p><select size="5" name="chosen" multiple>
<option>test</option>
<option>test1</option>
<option>test2</option>
<option>test3</option>
<option>test4</option>
</select><input type="submit" value="submit" name="B1" >
</p>
</form>

<%
if(null != request.getParameterValues("chosen&quot)
{
String chosenVal[] = request.getParameterValues("chosen"
out.println(chosenVal.length);
for(int i=0; i< chosenVal.length; i++)
{
out.println(chosenVal);
}
}
%>

out put >> 5 test test1 test2 test3 test4

Cheers
-Venu

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how i get all options value from select tag

fuadhamidov

Programmer

venur

MIS

Hattusas

Programmer

fuadhamidov

Programmer

fuadhamidov

Programmer

sedj

Programmer

fuadhamidov

Programmer

byam

Programmer

venur

MIS

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