OPTGROUP In Forms - Other Options?
Feb 27, 2002
Info from:
http://www.w3.org/TR/html4/interact/forms.html
I am trying to create a multiple selectable SELECT menu however I also want to have categories in this menu, so the menu might look like:
Category 1
>> Select Option
>> Select Option
>> Category 2
>> >> Select Option
>> >> Select Option
Category 3
>> Selection Option
for example. Now this OPTGROUP would be perfect but it only works one level deep. Can anyone think of an alternative to this, perhaps using javascript which prevents the user from selecting the categories?
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Aug 16, 2011
I google'd myself silly, I can't find tutorials for this. I hope someone could lend me a hand.
I'll try to make this simple. I have a PHP & MySQL driven site. I have a form for adding new content.
The form has a set of check box options that are pulled from MySQL.
At the bottom of the check boxes there is an "Add New" input field which I want to be used to add new check box options right above it.
database
So as I understand how this should work, when I click in the 'add new' text field, type something in, then press enter - the value of the add new field should be sent to a php script, addnew_backend.php. The form itself should not submit it's data. The PHP script will add the new value to the mysql table of options, and if successful, returns the newley generated checkbox which should fade in right above the add new text field into div#newoptions.
addnew_backend.php
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Jun 17, 2011
Is it possible to add additional data to the forms plugin options before submitting an ajax form, this would be only setting the data option after setting the main submit options previously in an object?
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Sep 6, 2009
On change of the first drop down i want another drop down list to get populate with optgroup in it
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Jul 23, 2005
I have more than once wanted to manipulate the contents of select boxes
dynamically, whilst the boxes contain <optgroup> tags.
Manipulation of a select box containing only <option> tags is fairly
easy and there is plenty of material on the net to assist with this.
However, I have searched long and found the material on the subject of
<optgroup> to be sparse, with a few posts here & there, but basically
you're on your own.
After much trial & error regarding techniques for this, I have a fairly
generic solution, which I decided to share, and the code is below. Two
different scenarios I have come across are (1) altering the contents of
one <select> dynamically depending upon another, and (2) being able
click 'up' and 'down' buttons to alter the sequence of the listing
(whilst keeping each <option> within its respective <optgroup>) I tried
various solutions for both of these which tended to either trash the
screen, alter which <optgroup> an <option> was under or trash the
<optgroup>s altogether.
Both these situations can be handled with the solution here. Basically
I keep the <optgroup>s and <option>s stored in an Array(), and then use
the Array() to reconstruct the <select>.
To use, just manipulate the Array() in memory - which I find very easy
- and then call the function to reconstruct.
I like to build the <select> <optgroup> <option> set using HTML as
normal and then create the Array() with <body as this makes
it usable where javascript is unavailable, rather than have the Array()
as a hard-coded start point. Code:
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Jul 11, 2011
I need to display the text selected in the dropdown below the dropdown. I used the script
$("#dropdown").change(function () {
var str = "";
$("#dropdown option:selected").each(function () {
str += $(this).text() + " ";
[Code]....
Its working fine, now I need to display the selected text with its optgroup label.
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Jan 28, 2010
My drop down uses an <optgroup label> facility (6 optgroup categories, many values per category).This works fine (when the user chooses a category from the first drop down, a second drop down menu refreshes with the values for that category).HOWEVER, the above system requires me to have every VALUE in plain text on every page. This is no good. It is affecting how the search engines view my page (the text cache version).I want to store these values in a separate file so the search engines do not cache all the values as content on every page.
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Jul 20, 2005
In a <select> drop-down, the onchange event isn't called when
scrolling through the dropdown using the mouse-wheel and when crossing
over a new <optgroup>.
Using the example below, notice how the onchange event isn't called
when mouse wheel scrolling between A3 and B1, but it works properly
when scrolling between A1 and A2.
E.g.
------------------------------------------
<html>
<body onload="document.forms['myForm'].elements['mySelect'].focus()">
<form name="myForm" id="myForm">
<select onchange="alert('onchange event');" name="mySelect"
id="mySelect">
<optgroup label="Group A">
<option value="A1">A1</option>
<option value="A2">A2</option>
<option value="A3">A3</option>
</optgroup>
<optgroup label="Group B">
<option value="B1">B1</option>
<option value="B2">B2</option>
<option value="B3">B3</option>
</optgroup>
<optgroup label="Group C">
<option value="C1">C1</option>
<option value="C2">C2</option>
<option value="C3">C3</option>
</optgroup>
</select>
</form>
</body>
</html>
------------------------------------------
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Jan 30, 2010
I want to add more dropdown options which are dependent on previous options. Now I have "hand" and "loft". I want to add next option "model" How to add third dropdown option box?
Here is the code:
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Sep 16, 2010
I want to make few forms but 1 submit button. I want to do 1 page , 5 forms , 1 submit button so when i click on the submit button it will send the 5 forms as 1 form.
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Nov 14, 2011
how to add forms in javascript, but it's limited to text input forms.
<script type="text/javascript"><!--
function updatesum() {
document.form.sum.value = (document.form.sum1.value -0) + (document.form.sum2.value -0);
}
//--></script>
Where the inputs sum1 and sum2 are text fields you put whatever numbers you want in. That works fine. Great. Now what I'm having trouble with is modifying the code so that it will add one form with an input number with a form that spits out a randomly generated number.
<input type="button" value="D20" onclick="this.form.display.value = Math.round (20 * Math.random())" class="buttonHi" /> <input name="display" type="text" size="6" value="" />
This is what I'm using for my random number generator. So basically I want to be able to put, say, 5, into the input text field above this. And then click on the d20 button to get a random number, say, 15, and then have the first code add the inputted 5 with the randomly generated 15.
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Sep 4, 2009
Okay, I'm having some trouble getting my head around how to do this..
<select>
<option value="A">A</option>
<option value="B">B</option>
[code]....
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Nov 17, 2007
i currently have a few problems with my code, but currently i want to get my options into my function
<select id="menu">
<option value="first">First Time User</option>
<option value="Frequent">Frequent Flier</option>
<option value="Buying">Buying a Degree</option>
</select>
How do I use this info to make it part of my function, for example when First Time user is selected and the function is executed it i want a windows.alert to come up but i don't know how to code that.
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May 7, 2001
I have a bit of a question about CGI...I'm not very knowledgeable about it, so I have a specific question. Can you set up a site in which sites can be rated using CGI?
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Feb 3, 2006
I would like to allow users to print a page, but I want to suppress the
header and footer the appear by default. Are there options to permit this?
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Jan 11, 2007
I've tried to access the value of a selected option through the
following getSelectValue function, passing the name of the select
function getSelectValue (name) {
var sel = document.getElementsByName(name)[0];
var i = sel.options.selectedIndex;
return i == -1? "": sel.options[i].value;
}
getSelectValue ('belongsto')
...
<select name="belongsto" ...
yet I always get the error "sel has no properties". Any idea what's
wrong? Is there a simpler way?
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Apr 21, 2006
I have an some options like this:
<option value="12345" title="Frank">Frank - 12345</option>
What I want to do, is get the title. I've tried this:
document.MyForm.MySelect.options[document.MyForm.MySelect.selectedIndex].title
That dosn't work. I'm just using the title attribute as a place to hold the information I need. Maybe there is another attribute that would work better for this? How can I get the contents of the attribute?
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Jan 26, 2004
Code:
<script>
alert("You are not allowed to see this page");
self.location="javascript:history.go(-1)";
</script>
The above script has one option.
I like to make two options(yes or no) like the following.
Code:
<script>
alert("Are you sure to delete?");
Yes(self.location="delete.php");
No(self.location="javascript:history.go(-1))";
</script>
Is it possible? How?
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Jun 3, 2005
I have one select, I can say wich element is selected:
<select name="myselect">
<option value="100">A</option>
<option value="101">B</option>
<option value="102">C</option>
</select>
this line will select the option B
myselect.options.selectedIndex = 1;
but, how can I do if I want to select the option B without knowing it´s position?
I mean, I want to select the option B and the value 101, but I don´t know it´s position
any idea?
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Feb 21, 2007
Does anyone know how to get the value from a form option (dropdown list) and have it post the value without having a submit button?
So that when I choose a value in the option list the page is automatically reloaded with that value?
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Jul 23, 2005
Using IE5.5+, is it possible to hide options in a select?
The following doesn't work:
<HTML>
<HEAD>
<STYLE>
SELECT OPTION.orgA{ display:none }
.orgB{ display:inline }
.orgC{ display:none }
</STYLE>
</HEAD>
<BODY>
<SELECT id=cbo size=3>
<OPTION class="orgA">RTI</OPTION>
<OPTION class="orgB">LAB</OPTION>
<OPTION class="orgC">TCI</OPTION>
</SELECT>
</BODY>
</HTML>
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Jul 23, 2005
I have a drop down with alot of options say about 6000 cities and
districts. I need to select all options if user selects "All checkbox".
I use "on change" and a for loop to do this, but it takes a lot of time
to select all these options. Is there any faster way to select all
these options?
function selectAll()
{
var element = document.getElementById("location");
var length = document.getElementById("location").length;
for(var i=0; i<length; i++)
{
element.options[i].selected=true;
}
}
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Jul 23, 2005
I have two drop down box's in a form, how would I go about changing the
options of the seccond one depending on what option is selected in the
first one?
For example, if there's a drop down box with "a", "b" and "c" as the
options, and another drop down box with "1", "2" and "3" as the
options; then when you select "a" on the first drop down box the values
of the seccond one changes to "a1", "a2" and "a3". This should work for
all the options of the first drop down box.
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Jun 1, 2006
In JS, how can I change the selected value of a dropdownlist(select options)
I know the value of indexed value of the selected value before it is changed.
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Aug 3, 2006
I got this simmple function, It stays on onChange on select and on
change it hides all objects with ID equal to select name plus the
optionvalue. It works perfectly in Opera and FF, but IE crashes because
says that options object is null
the problem is in for (optionId in what.options)
It seems that IE does NOT return the list of options, but only some
other objects: language scrollheight, istextedit, currentstyle,
document, and onmouseup
Please can you help me how can I go throuth that cycle? I need to get
the values of all options in select. Thank you
function showHide (what) {
selectedId=what.options.selectedIndex;
selectedValue=what.options[selectedId].value;
selectedObject = document.getElementById(what.name+selectedValue);
selectedObject.className="";
for (optionId in what.options)
{
optionValue=what.options[optionId].value;
if (optionValue) {
optionObject = document.getElementById(what.name+optionValue);
if (optionId!=selectedId) {
optionObject.className="hidden";
}
}
}
}
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Aug 31, 2006
I have 4 select fields like;
<select id="choice_101" name="choice_101">
<option label="Will not attend" value="Will not attend"
selected="selected">Will not attend</option>
<option label="First Choice" value="First Choice">First
Choice</option>
<option label="Second Choice" value="Second Choice">Second
Choice</option>
<option label="Third Choice" value="Third Choice">Third
Choice</option>
<option label="Fourth Choice" value="Fourth Choice">Fourth
Choice</option>
</select>
choice_102, choice_103 and choice_104
The user must bem select options in this 4 files in order, for example,
he must bem select first "First Choice" next "Second Choice"... The
options not be same.
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