I am using lightning:input
of different types. Using readonly=true
in input of type text is working but does not work for checkbox
or for lightning:select
.
Anyone got any clue for this?
I am using lightning:input
of different types. Using readonly=true
in input of type text is working but does not work for checkbox
or for lightning:select
.
Anyone got any clue for this?
You may use attribute disabled
instead of readonly
.
Here's an example with lightning:input
[checkbox] and lightning:select
:
<div>
Checkboxes
<lightning:input type="checkbox" label="Red" name="red" checked="true" disabled="true"/>
<lightning:input type="checkbox" label="Blue" name="blue" disabled="true"/>
</div>
<br/>
<div>
<lightning:select name="selectItem" label="Select an item" value="2" disabled="true">
<option value="">choose one...</option>
<option value="1">one</option>
<option value="2">two</option>
</lightning:select>
</div>
HTML docs say that readonly
does not work for checkbox and that select does not have a readonly
attribute.
SELECT ... does not have a READONLY attribute. The reason is that technically lists don't have values... they have selected options, which themselves have values. You may wish to see , which disables the list.
It's important to understand that READONLY merely prevents the user from changing the value of the field, not from interacting with the field. For many types of fields, READONLY is irrelevent because you don't normally change the value. In checkboxes, for example, you can check them on or off (thus setting the CHECKED state) but you don't change the value of the field. DISABLED, however, actually prevents you from using the field. Notice in these examples that you can set the checkboxes even though they are "read only"
Both suggest using the disabled
attribute.
<lightning-input type="search"/>
and using disabled was exactly what I needed. Using read-only
covers the search icon.
Apr 20, 2021 at 19:04
The readonly
attribute is not supported on input type="checkbox" - as you can see by fiddling around here:
https://jsfiddle.net/xue78fhd/
to stop a checkbox being fiddled you need to do add a little javascript event "hack" to the the onclick, like this:
yes, readonly maynot work as intended for checkbox/toggle type lightning input, but we can handle this in js code. if we want it to be fixed in checked/unchecked under certain conditions, we can make use of onchange attribute to fix value in checked/unchecked
in html of LWC
<lightning-input type="toggle" data-name="fixvalue" label="Toggle" onchange={toggleHandler} message-toggle-active="Yes" message-toggle-inactive="No" checked={isChecked}>
</lightning-input>
in js code:
toggleHandler(){
if(//your condition where you want checkbox/toggle input to be
fixed)
{
//assume you want it to be checked always
this.template.querySelector('lightning-input[data-name="fixvalue"]').checked = true;
}
else
{
your regular toggle/checkbox handler
}
}