Develop Reference

How to clear data on Select multiple when typing on another textfield using reactjs

This is my current code, what I want here is after selecting on Select option (CHIP) and if the user type on the textfield I want to clear what the user selected on CHIP, What should I do to get what i want functionality?
const names = [
'Oliver Hansen',
'Van Henry',
'April Tucker',
];
function getStyles(name, personName, theme) {
return {
fontWeight:
personName.indexOf(name) === -1
? theme.typography.fontWeightRegular
: theme.typography.fontWeightMedium,
};
}
export default function MultipleSelectChip() {
const theme = useTheme();
const [personName, setPersonName] = React.useState([]);
const handleChange = (event) => {
const {
target: { value },
} = event;
setPersonName(
// On autofill we get a stringified value.
typeof value === 'string' ? value.split(',') : value
);
};
const handleChangeTextField = (event) => {
setPersonName(null);
};
return (
<div>
<FormControl sx={{ m: 1, width: 300 }}>
<InputLabel id="demo-multiple-chip-label">Chip</InputLabel>
<Select
labelId="demo-multiple-chip-label"
id="demo-multiple-chip"
multiple
value={personName}
onChange={handleChange}
input={<OutlinedInput id="select-multiple-chip" label="Chip" />}
renderValue={(selected) => (
<Box sx={{ display: 'flex', flexWrap: 'wrap', gap: 0.5 }}>
{selected.map((value) => (
<Chip key={value} label={value} />
))}
</Box>
)}
MenuProps={MenuProps}
>
{names.map((name) => (
<MenuItem
key={name}
value={name}
style={getStyles(name, personName, theme)}
>
{name}
</MenuItem>
))}
</Select>
<TextField
variant="outlined"
label="Type anything to remove the value of Chip"
onChange={handleChangeTextField} />
</FormControl>
</div>
This is my current code, what I want here is after selecting on Select option (CHIP) and if the user type on the textfield I want to clear what the user selected on CHIP, What should I do to get what i want functionality?

I would set your textfield to be controlled (ie backed by a state variable) and add an effect hook to watch it.
When it receives a value, clear the selected names by setting personNames back to an empty array.
const [text, setText] = useState("");
useEffect(() => {
if (text) {
setPersonName([]);
}
}, [text]);
const handleChangeTextField = ({ target: { value } }) => {
setText(value);
};
<TextField
value={text}
variant="outlined"
label="Type anything to remove the value of Chip"
onChange={handleChangeTextField}
/>
You might also want to clear the text field when selecting names by adding this into handleChange...
setText("");

get field value from Formik & Material UI form

I am trying to disable a checkbox group based on the value of a radio group. I followed the method used in the last part of the Formik tutorial. Using react context removes a lot of clutter from the form itself but I'm not sure how to expose some values now.
In the form below, in the CheckboxGroup component, I'm attempting to print the word disabled as an attribute of checkbox1 if radio4's value is "yes". I'm not sure what value should be used here as fields doesn't work. How do I pass a value to the form given the React Context method used?
The form:
export default function HealthAssessmentForm() {
return (
<Formik
initialValues={{
radio4: '',
symptoms: '',
}}
onSubmit={async (values) => {
await new Promise((r) => setTimeout(r, 500));
console.log(JSON.stringify(values, null, 2));
}}
validator={() => ({})}
>
<Form>
<RadioInputGroup
label="Disable the checkbox?"
name="radio4"
options={['Yes','No']}
/>
<CheckboxGroup
{(fields.radio4.value === "yes") ? "disabled" : null}
name="checkbox1"
options={[
{name:"hello",label:"hello"},
{name:"there",label:"there"},
]}
/>
<button type="submit">Submit</button>
</Form>
</Formik>
)
}
I'm not sure the custom components are relevant here but...
const RadioInputGroup = (props) => {
const [field, meta] = useField({...props, type:'radio'});
return (
<FormControl component="fieldset">
<FormLabel component="legend">{props.label}</FormLabel>
<RadioGroup aria-label={props.name} name={props.name} value={props.value}>
<FieldArray name="options">
{({ insert, remove, push }) => (
props.options.length > 0 && props.options.map((option,index) => (
<FormControlLabel key={index} {...props} value={option.toLowerCase()} control={<Radio />} label={option} />
))
)}
</FieldArray>
</RadioGroup>
</FormControl>
)
};
const CheckboxGroup = (props) => {
const [field, meta] = useField({...props, type: 'checkbox', });
return (
<FormControl component="fieldset">
<FormLabel component="legend">{props.label}</FormLabel>
<FormGroup>
<FieldArray name="options">
{({ insert, remove, push}) => (
props.options.length > 0 && props.options.map((option,index) => (
<FormControlLabel
{...field} {...props}
key={index}
control={<Checkbox />}
label={option.label}
/>
))
)}
</FieldArray>
</FormGroup>
<FormHelperText>Be careful</FormHelperText>
</FormControl>
)
}

I wrapped the whole <Form> in a function that passes props as an argument. I then get access to props.values.radio1. However, that has exposed that radio1 does not have a value even when it is clicked, which should be a separate issue.
{(props) => (
<Form>
<RadioInputGroup
label="Disable the checkbox?"
name="radio4"
options={['Yes','No']}
/>
<CheckboxGroup
disabled={props.values.radio1 === "No"}
name="checkbox1"
options={[
{name:"hello",label:"hello"},
{name:"there",label:"there"},
]}
/> </Form>
)}

Material-UI TextField loses focus on every onChange

I am creating the following component:
It will contain an array of objects, where each object is a prescription, with the medicine name from the select and a TextField for the Dosis.
My problem is that the TextField loses focus on every onChange() and is very frustrating because it cannot be edited on a single focus.
This is my component :
const MedicineSelect = ({ medications, setMedications, ...props }) => {
const { medicines } = useMedicines()
const classes = useStyles()
const handleChange = (index, target) => {
// setAge(event.target.value)
const newMedications = cloneDeep(medications)
newMedications[index][target.name] = target.value
setMedications(newMedications)
}
const handleAddMedicine = () => {
const newMedications = cloneDeep(medications)
newMedications.push({ medicine: '', dosis: '', time: '' })
setMedications(newMedications)
}
const handleDeleteMedicine = (index) => {
console.log('DELETE: ', index)
const newMedications = cloneDeep(medications)
newMedications.splice(index, 1)
setMedications(newMedications)
}
return (
<Paper style={{ padding: 5 }}>
<List>
{medications.map((medication, index) => (
<ListItem key={nanoid()} divider alignItems='center'>
<ListItemIcon>
<Tooltip title='Eliminar'>
<IconButton
className={classes.iconButton}
onClick={() => handleDeleteMedicine(index)}
>
<HighlightOffOutlinedIcon />
</IconButton>
</Tooltip>
</ListItemIcon>
<FormControl className={classes.formControl}>
<InputLabel
id={`${index}-select-${medication}-label`}
>
Medicamento
</InputLabel>
<Select
labelId={`${index}-select-${medication}-label`}
id={`${index}-select-${medication}`}
name='medicine'
value={medication.medicine}
onChange={(event) =>
handleChange(index, event.target)
}
>
{medicines.map((medicine) => (
<MenuItem
key={nanoid()}
value={medicine.name}
>
{medicine.name}
</MenuItem>
))}
</Select>
</FormControl>
<TextField
// fullWidth
id={`${index}-text-${medication}`}
label='Dosis'
name='dosis'
onChange={(event) =>
handleChange(index, event.target)
}
value={medication.dosis}
/>
</ListItem>
))}
<Button onClick={handleAddMedicine}>+ agregar</Button>
</List>
</Paper>
)
}
And here is where I set the component:
const [medications, setMedications] = useState([
{ medicine: '', dosis: '', time: '' },
])
...
<Grid item md={12} xs={12}>
<Accordion>
<AccordionSummary
expandIcon={<ExpandMoreIcon />}
aria-controls='panel1a-content'
id='panel1a-header'
>
<Typography variant='h4'>
Tratamiento:
</Typography>
</AccordionSummary>
<AccordionDetails>
<Container disableGutters>
<MedicineSelect
medications={medications}
setMedications={setMedications}
/>
</Container>
</AccordionDetails>
</Accordion>
</Grid>
...
Adding and removing objects from the array works perfect. selecting the medicine from the select, also works perfect. the only problem I have is when editing the Dosis TextField, with every character, the focus is lost and I have to click again on the TextField.
Please help me getting this fixed!!!

After searching a lot, finally I found the solution. Actually when using nanoid() to create unique keys, on every state update React re-renders all components and since the id of both the List and the TextField component are regenerated by nanoid on every render, React loses track of the original values, that is why Focus was lost.
What I did was keeping the keys unmuttable:
<ListItem key={`medication-${index}`} divider alignItems='center'>
and
<TextField
key={`dosis-${index}`}
fullWidth
// id={`${index}-dosis-${medication}`}
label='Dosis'
name='dosis'
onChange={(event) =>
handleChange(index, event.target)
}
value={medication.dosis}
/>

Disable backspace deleting of options in Autocomplete

I want to use an Autocomplete (from the Material-Ui library) component from material ui to select multiple options, and those options should not be able to be removed (directly) by the user.
The problem I'm facing is that the user can delete the options from the Autocomplete if they focus the component and press backspace as if they are deleting text.
Code
This is the component I'm using:
<Autocomplete multiple
options={options}
getOptionLabel={option => option.title}
renderInput={params =>
<TextField {...params} label="Autocomplete" variant="outlined" />
}
onChange={this.onAutocompleteChange.bind(this)}
getOptionSelected={(option: Option, value: Option) => option.value === value.value}
filterSelectedOptions={true}
renderTags={(tagValue, getTagProps) =>
tagValue.map((option, index) => (
<Chip key={option.value} label={option.title} color="primary" />
))
}
disableClearable={true}
/>
What I tried
Disabling the TextField from the renderInput prop with disable={true} has no effect.
Adding InputProps={{ disabled: true }} or InputProps={{ readOnly: true }} to TextField disables the Autocomplete completely.
Adding ChipProps={{ disabled: true }} to the Autocomplete has no effect.
Thanks for reading!

To control this aspect, you need to use a controlled approach to the Autocomplete's value as demonstrated in this demo.
In the documentation for the onChange prop you will find the following:
onChange Callback fired when the value changes.
Signature:
function(event: object, value: T | T[], reason: string) => void
event: The event source of the callback.
value: The new value of the component.
reason: One of "create-option", "select-option", "remove-option", "blur" or "clear".
The third argument to onChange is the "reason" for the change. In your case, you want to ignore all of the "remove-option" changes:
onChange={(event, newValue, reason) => {
if (reason !== "remove-option") {
setValue(newValue);
}
}}
Here's a full working example:
import React from "react";
import TextField from "#material-ui/core/TextField";
import Autocomplete from "#material-ui/lab/Autocomplete";
import Chip from "#material-ui/core/Chip";
const options = ["Option 1", "Option 2"];
export default function ControllableStates() {
const [value, setValue] = React.useState([options[0]]);
const [inputValue, setInputValue] = React.useState("");
return (
<div>
<div>{`value: ${value !== null ? `'${value}'` : "null"}`}</div>
<div>{`inputValue: '${inputValue}'`}</div>
<br />
<Autocomplete
multiple
value={value}
disableClearable
onChange={(event, newValue, reason) => {
if (reason !== "remove-option") {
setValue(newValue);
}
}}
inputValue={inputValue}
onInputChange={(event, newInputValue) => {
setInputValue(newInputValue);
}}
id="controllable-states-demo"
options={options}
style={{ width: 300 }}
renderInput={params => (
<TextField {...params} label="Controllable" variant="outlined" />
)}
renderTags={(tagValue, getTagProps) =>
tagValue.map((option, index) => (
<Chip key={option} label={option} color="primary" />
))
}
/>
</div>
);
}

MUI autocomplete onchange not triggering on chip delete

I'm using the material ui autocomplete component but I noticed that when the chips (tags) are deleted directly from the (x) button on the chip the autocomplete's onchange function is not triggered. Any ideas how I can get the onchange to trigger when a tag is deleted directly from the chip component?
Bellow is my code:
My component which uses autocomplete
export default function FormSearchInput( props ) {
const classes = FormStyle();
const icon = <CheckBoxOutlineBlankIcon fontSize="small" />;
const checkedIcon = <CheckBoxIcon fontSize="small" />;
return (
<Grid item xs = {props.xs} className = {classes.formItem}>
<Autocomplete
className = {props.className}
size = {props.size}
limitTags = {4}
multiple
options = {props.options}
disableCloseOnSelect
getOptionLabel = {( option ) => option}
defaultValue = {props.selectedOptions}
renderOption = {( option, {selected} ) => (
<React.Fragment>
<Checkbox
icon = {icon}
checkedIcon = {checkedIcon}
style = {{ marginRight: 8 }}
checked = {selected}
onChange = {props.onChange( option, selected )}
/>
{option}
</React.Fragment>
)}
renderInput = {( params ) => (
<TextField {...params} variant = "outlined" label = {props.label}/>
)}
/>
</Grid>
)
}
My onchange handler which i pass to my formsearchcomponent:
function handleCollaboratorsChange( option, selected ) {
console.log("triggering")
let tempCollaborators = collaborators
if( selected && !tempCollaborators.includes(option) ) {
// If collaborator not in list add to list
tempCollaborators.push( option )
} else if( !selected && tempCollaborators.includes(option) ) {
// If collaborator in list remove from list
tempCollaborators.splice( tempCollaborators.indexOf(option), 1 );
}
setCollaborators( tempCollaborators )
}

Capture the "reason" in the onchange.
In the following example, I've an autocomplete that allows the user to add new options and display them as chips.
// HANDLE: ON CHANGE
const on_change = (
event: React.SyntheticEvent,
newValue: any,
reason: string,
details: any,
) => {
const selected_item = newValue[newValue.length - 1]
switch (reason) {
case 'removeOption':
case 'remove-option':
if (details.option.name) {
// remove an existing option
remove_tag(details.option.name)
} else {
// remove a new created option
remove_tag(details.option.inputValue)
}
break
case 'createOption':
case 'selectOption':
if (typeof selected_item === 'string') {
if (can_add()) create_tag(newValue)
} else if (selected_item && selected_item.inputValue) {
// Create a new value from the user input
if (can_add()) create_tag(selected_item.inputValue)
} else {
if (can_add()) {
if (!tags.includes(selected_item)) set_tag([...tags, selected_item])
}
}
break
}
}
And define the component like this:
<Autocomplete
multiple={true}
autoHighlight={true}
limitTags={tags_limit}
id="cmb_tags"
options={full_tags}
getOptionLabel={on_get_option_label}
defaultValue={tags}
freeSolo
filterOptions={on_filter}
selectOnFocus
noOptionsText={i18n.t('sinopciones')}
onChange={on_change}
renderInput={(params) => (
<TextField
{...params}
variant="standard"
placeholder={placeholder}
/>
)}
renderOption={(props, option, { selected }) => (
<li {...props}>
<Checkbox
icon={icon}
checkedIcon={checkedIcon}
style={{ marginRight: 8 }}
checked={selected}
/>
{option.name}
</li>
)}
/>
Let me know if this helps you.

Add the onChange property...
<Autocomplete
className = {props.className}
size = {props.size}
limitTags = {4}
multiple
options = {props.options}
disableCloseOnSelect
getOptionLabel = {( option ) => option}
defaultValue = {props.selectedOptions}
**onChange = {(event, newValue) => { handleCollaboratorsChange(newValue); }}**
renderOption = {( option, {selected} ) => (