I am trying to create a input-box where the available anwsers ar listed in a list below. This I can do but i am not able to sort the available anwsers in optgroups. When the code runs the anwsers is listed without the optgroups.
Is it at all possible to use optgroups in datalists or is optgroups exclusive to select elements?
Here is a code sample where the optgroups is not shown
<label>Välj en elbil
<input class="downdrop" id="valdModellCompare2" list="elfordon" onchange=getSelectValue();></label>
<datalist id="elfordon">
<optgroup value="Elbilar">elbil
<option value="teslas">Tesla Model S</option>
<option value="teslax">Tesla Model X</option>
<option value="tesla3">Tesla Model 3</option>
<option value="i3">BMW i3</option>
<option value="id3">Volkswagen ID.3</option>
<option value="id4">Volkswagen ID.4</option>
<option value="niro">KIA Niro</option>
<option value="etron">Audi e-Tron</option>
<option value="polestar">Polestar 2</option>
<option value="xc40e">Volvo XC40 Recharge</option>
<option value="leaf">Nissan Leaf</option>
<option value="taycan">Porsche Taycan</option>
</optgroup>
<optgroup value="Plug-in Hybrider">hybrid
<option value="outlander">Mitsubitshi Outlander Hybrid</option>
<option value="v60hybrid">Volvo V60 twin engine</option>
<option value="optima">KIA Optima SV</option>
<option value="passatgte">Volkswagen Passat GTE</option>
<option value="priushybrid">Toyota Prius Hybrid</option>
<option value="golfgte">Volkswagen Golf GTE</option>
<option value="x545e">BMW X5 45e</option>
<option value="530e">BMW 530e</option>
</optgroup>
</datalist>
As the documentation says for <optgroup> :
Permitted parents: A <select> element.
There are no other elements mentioned as permitted parents. Therefore optgroup is exclusively a child of select.
While optgroups is exclusively a child of select, select can be a child of datalist!
Although it is not the cleanest solution, you can use a trick used for compatibility of browsers that don't support datalist https://html.spec.whatwg.org/multipage/form-elements.html#the-datalist-element
In the more elaborate case, the datalist element can be given contents that are to be displayed for down-level clients that don't support datalist. In this case, the option elements are provided inside a select element inside the datalist element.
With the addition of value="" readonly to an option displaying the optgroup name. So that it is not possbile to select it.
<label>Välj en elbil
<input class="downdrop" id="valdModellCompare2" list="elfordon" onchange=getSelectValue();></label>
<datalist id="elfordon">
<label> Select from the list:
<select name="car">
<optgroup value="Elbilar">elbil
<option value="" readonly>Elbilar</option>
<option value="teslas"> >Tesla Model S</option>
<option value="teslax"> >Tesla Model X</option>
<option value="tesla3"> >Tesla Model 3</option>
<option value="i3"> >BMW i3</option>
</optgroup>
<optgroup value="Plug-in Hybrider">hybrid
<option value="" readonly>Plug-in Hybrider</option>
<option value="outlander"> >Mitsubitshi Outlander Hybrid</option>
<option value="v60hybrid"> >Volvo V60 twin engine</option>
<option value="optima"> >KIA Optima SV</option>
</optgroup>
</select>
</label>
</datalist>
I need to do something like this.
I've already tried to add nbsp symbols, but I am not sure it is the best thing I can do
Try to add this attribute to the option:
dir="rtl"
<select>
<option dir="rtl">RTL Text</option>
<option>This is an example</option>
</select>
Do the same using optgroup:
<select>
<optgroup label="Swedish Cars">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
</optgroup>
<optgroup label="German Cars">
<option value="mercedes">Mercedes</option>
<option value="audi">Audi</option>
</optgroup>
</select>
How would I go about setting a title in select tag? Here is my select box:
<select>
<option value="sydney">Sydney</option>
<option value="melbourne">Melbourne</option>
<option value="cromwell">Cromwell</option>
<option value="queenstown">Queenstown</option>
</select>
When I visit the site, by default it shows "Sydney". But I want to display a title, such as, "What is the name of your city?"
<select>
<option selected disabled>Choose one</option>
<option value="sydney">Sydney</option>
<option value="melbourne">Melbourne</option>
<option value="cromwell">Cromwell</option>
<option value="queenstown">Queenstown</option>
</select>
Using selected and disabled will make "Choose one" be the default selected value, but also make it impossible for the user to actually select the item, like so:
<select>
<optgroup label = "Choose One">
<option value ="sydney">Sydney</option>
<option value ="melbourne">Melbourne</option>
<option value ="cromwell">Cromwell</option>
<option value ="queenstown">Queenstown</option>
</optgroup>
</select>
You can combine it with selected and hidden
<select class="dropdown" style="width: 150px; height: 26px">
<option selected hidden>What is your name?</option>
<option value="michel">Michel</option>
<option value="thiago">Thiago</option>
<option value="Jonson">Jonson</option>
</select>
Your dropdown title will be selected and cannot chose by the user.
You can use the following
<select data-hai="whatup">
<option label="Select your city">Select your city</option>
<option value="sydney">Sydney</option>
<option value="melbourne">Melbourne</option>
<option value="cromwell">Cromwell</option>
<option value="queenstown">Queenstown</option>
</select>
I think that this would help:
<select name="select_1">
<optgroup label="First optgroup category">
<option selected="selected" value="0">Select element</option>
<option value="2">Option 1</option>
<option value="3">Option 2</option>
<option value="4">Option 3</option>
</optgroup>
<optgroup label="Second optgroup category">
<option value="5">Option 4</option>
<option value="6">Option 5</option>
<option value="7">Option 6</option>
</optgroup>
</select>
<option value="" selected style="display:none">Please select one item</option>
Using selected and using display: none; for hidden item in list.
You can add an option tag on top of the others with no value and a prompt like this:
<select>
<option value="">Choose One</option>
<option value ="sydney">Sydney</option>
<option value ="melbourne">Melbourne</option>
<option value ="cromwell">Cromwell</option>
<option value ="queenstown">Queenstown</option>
</select>
Or leave it blank instead of saying Choose one if you want.
Typically, I would suggest that you use the <optgroup> option, as that gives some nice styling and indenting to the element.
The HTML element creates a grouping of options within a element. (Source: MDN Web Docs: <optgroup>.
But, since an <optgroup> cannot be a selected value, you can make an <option selected disabled> and then stylize it with CSS so that it behaves like an <optgroup>....
.optionGroup {
font-weight: bold;
font-style: italic;
}
<select>
<option class="optionGroup" selected disabled>Choose one</option>
<option value="sydney" class="optionChild"> Sydney</option>
<option value="melbourne" class="optionChild"> Melbourne</option>
<option value="cromwell" class="optionChild"> Cromwell</option>
<option value="queenstown" class="optionChild"> Queenstown</option>
</select>
With a default option having selected attribute
<select>
<option value="" selected>Choose your city</option>
<option value ="sydney">Sydney</option>
<option value ="melbourne">Melbourne</option>
<option value ="cromwell">Cromwell</option>
<option value ="queenstown">Queenstown</option>
</select>
The first option's text will always display as default title.
<select>
<option value ="">What is the name of your city?</option>
<option value ="sydney">Sydney</option>
<option value ="melbourne">Melbourne</option>
<option value ="cromwell">Cromwell</option>
<option value ="queenstown">Queenstown</option>
</select>
You can create dropdown title | label with selected, hidden and style for old or unsupported device.
<select name="city" >
<option selected hidden style="display:none">What is your city</option>
<option value="1">Sydney</option>
<option value="2">Melbourne</option>
<option value="3">Cromwell</option>
<option value="4">Queenstown</option>
</select>
I added a <div> and it worked fine
<div title="Your title here!">
<select>
<option value="sydney">Sydney</option>
<option value="melbourne">Melbourne</option>
<option value="cromwell">Cromwell</option>
<option value="queenstown">Queenstown</option>
</select>
</div>
<select name="city">
<option value ="0">What is your city</option>
<option value ="1">Sydney</option>
<option value ="2">Melbourne</option>
<option value ="3">Cromwell</option>
<option value ="4">Queenstown</option>
</select>
You can use the unique id for the value instead
In an HTML select element, is it possible to have the second option selected by default?
<select class="styled" onchange="location = this.options[this.selectedIndex].value;">
<option value="9u.html">Team 9u</option>
<option value="10u.html">Team 10u</option>
<option value="11u.html">Team 11u</option>
<option value="12u.html">Team 12u</option>
<option value="13u.html">Team 13u</option>
<option value="14u.html">Team 14u</option>
<option value="15u.html">Team 15u</option>
<option value="16u.html">Team 16u</option>
</select>
I would like the value "10u" to be in the select box when I load the page.
Use the selected attribute. Is google down?
<option value="10u.html" selected>Team 10u</option>
Is it possible to set a default prompt when nothing is selected for select box using css? or is there an elegant way to deal with this other than
<option>Select Here</option>?
Try this:
<select>
<option value="" disabled>Select one--</option>
<option value="someVal1">Option 1</option>
<option value="someVal2">Option 2</option>
<option value="someVal3">Option 3</option>
<option value="someVal4">Option 4</option>
</select>
The accepted answer did not work for me as expected.
If you need the "Select one option" to be the selected one by default , this worked for me
<select id="selected_option" name="selected_option">
<option value="default" selected="selected">Select one option </option>
<option value="someVal1">Option 1</option>
<option value="someVal2">Option 2</option>
<option value="someVal3">Option 3</option>
<option value="someVal4">Option 4</option>
</select>
Is also important that the select has id and name so when you submit the form the value will be part of the POST or GET
<select>
<option style="display:none">Empty</option>
<option>button1</option>
<option>button2</option>
</select>
This is how I use for setup the default prompt but it will not set a default value. It use a HTML5 validation required. It may be a little bit shift from the question but I hope it could help as alternative.
<select id="car" name="car[brand]" required>
<option disabled selected>Select Car Brand</option>
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="opel">Opel</option>
<option value="audi">Audi</option>
</select>
Try using option with unset value
<select>
<option value>Select something</option>
<option value="1">Foo</option>
<option value="2">Bar</option>
</select>