useAutocomplete default values
I have a controller that renders an autocomplete component. I am using the useAutocomplete hook to get the options, but I need a default value or else I will get the "cannot go from uncontrolled to controlled" error, but I cant set a default value because the useAutocomplete hoook is async. How can I fix this?
5 Replies
Hi @.chasel. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
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The
useAutocomplete
hook in Refine provides a defaultValue
property that allows you to set options as selected by default. This can help you avoid the "cannot go from uncontrolled to controlled" error.
The defaultValue
property sends a separate useMany
query to the backend with the defaultValue
and appends it to the options of the select component. This ensures that the default values exist in the current options array. The defaultValue
can be a single value or an array of values.
Here is an example of how you can use it:
In this example, defaultValue: 11
sets the default value for the Autocomplete component. The useAutocomplete
hook takes care of fetching the data asynchronously and setting the default value.
For more details, you can refer to the useAutocomplete documentation (https://refine.dev/docs/api-reference/mui/hooks/useAutocomplete).
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complex-teal•15mo ago
@kapa.ai how can I display and error message when the validation fails on my custom validate function in my controller? I want it to display the error "this field is required". Here is my code:
Let me check the knowledge base for you. One moment! :books:
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In your code, you are using the
Controller
component from react-hook-form
and you have already set up the required
rule with the error message "This field is required". This message will be displayed when the field is empty.
However, your custom validate
function is checking if value.course_id
is not an empty string. If value
is the actual value of the field, you should check value !== ""
instead of value.course_id !== ""
.
Here is the corrected code:
When the validation fails, an error message will be displayed. The way to display this error message depends on the rest of your code. Typically, you would use the errors
object from react-hook-form
to display the error message for a specific field.
For example:
In this example, {errors.course_id.message}
will display the error message for the course_id
field when the validation fails.
For more details, you can refer to the React Hook Form Validation documentation (https://refine.dev/blog/react-hook-form-validation-examples).
----------------------
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