adverse-sapphire•2d ago

InputLabelProps shrink not working

I have the following create component, that uses InputLabelProps with shrink rule listening to hook form, but when something is typed in the input, the label stays above the text typed. how can i fix it? code below: import React from "react"; import type { HttpError } from "@refinedev/core"; import { Breadcrumb, Create, EmailField } from "@refinedev/mui"; import Box from "@mui/material/Box"; import TextField from "@mui/material/TextField"; import { useForm } from "@refinedev/react-hook-form"; import { Typography } from "@mui/material"; import { Nullable } from "../../@types"; import { Controller } from "react-hook-form"; export const SpecialityCreate = () => { const { saveButtonProps, register, control, formState: { errors }, getValues, } = useForm<any, HttpError, Nullable<any>>(); return ( <Create breadcrumb={<Breadcrumb hideIcons />} saveButtonProps={saveButtonProps} title={<Typography variant="h5">Crear especialidad</Typography>} > <Box component="form" sx={{ display: "flex", flexDirection: "column" }} autoComplete="off" > <TextField id="name" {...register("name", { required: "This field is required", })} error={!!errors.name} margin="normal" fullWidth label="Nombre" required name="name" autoFocus InputLabelProps={{ shrink: !!getValues("name") }} /> <TextField id="description" {...register("description", { required: "This field is required", })} error={!!errors.description} margin="normal" label="Descripción" required name="description" InputLabelProps={{ shrink: !!getValues("description") }} /> </Box> </Create> ); };

10 Replies

kapa.ai•2d ago

Hi @jpauloc97. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- The issue you're experiencing with the InputLabelProps and the shrink property not working as expected is a common one when using Material-UI TextField components with React Hook Form. The problem occurs because the getValues function doesn't trigger a re-render when the input value changes. To fix this issue, you can use the watch function from React Hook Form instead of getValues. The watch function will cause a re-render when the input value changes, ensuring that the label shrinks properly. Here's how you can modify your code to fix the issue: 1. First, import the watch function from useForm:

const {
  saveButtonProps,
  register,
  control,
  formState: { errors },
  watch,
} = useForm<any, HttpError, Nullable<any>>();

const {
  saveButtonProps,
  register,
  control,
  formState: { errors },
  watch,
} = useForm<any, HttpError, Nullable<any>>();

2. Then, use the watch function in the InputLabelProps:

<TextField
  id="name"
  {...register("name", {
    required: "This field is required",
  })}
  error={!!errors.name}
  margin="normal"
  fullWidth
  label="Nombre"
  required
  name="name"
  autoFocus
  InputLabelProps={{ shrink: !!watch("name") }}
/>

<TextField
  id="description"
  {...register("description", {
    required: "This field is required",
  })}
  error={!!errors.description}
  margin="normal"
  label="Descripción"
  required
  name="description"
  InputLabelProps={{ shrink: !!watch("description") }}
/>

<TextField
  id="name"
  {...register("name", {
    required: "This field is required",
  })}
  error={!!errors.name}
  margin="normal"
  fullWidth
  label="Nombre"
  required
  name="name"
  autoFocus
  InputLabelProps={{ shrink: !!watch("name") }}
/>

<TextField
  id="description"
  {...register("description", {
    required: "This field is required",
  })}
  error={!!errors.description}
  margin="normal"
  label="Descripción"
  required
  name="description"
  InputLabelProps={{ shrink: !!watch("description") }}
/>

By using watch instead of getValues, the component will re-render when the input value changes, and the label will shrink properly. Alternatively, you can use the Controller component from React Hook Form, which handles the input state and re-rendering automatically. Here's an example of how you can use Controller:

<Controller
  name="name"
  control={control}
  rules={{ required: "This field is required" }}
  render={({ field }) => (
    <TextField
      {...field}
      id="name"
      error={!!errors.name}
      margin="normal"
      fullWidth
      label="Nombre"
      required
      autoFocus
    />
  )}
/>

<Controller
  name="description"
  control={control}
  rules={{ required: "This field is required" }}
  render={({ field }) => (
    <TextField
      {...field}
      id="description"
      error={!!errors.description}
      margin="normal"
      label="Descripción"
      required
    />
  )}
/>

<Controller
  name="name"
  control={control}
  rules={{ required: "This field is required" }}
  render={({ field }) => (
    <TextField
      {...field}
      id="name"
      error={!!errors.name}
      margin="normal"
      fullWidth
      label="Nombre"
      required
      autoFocus
    />
  )}
/>

<Controller
  name="description"
  control={control}
  rules={{ required: "This field is required" }}
  render={({ field }) => (
    <TextField
      {...field}
      id="description"
      error={!!errors.description}
      margin="normal"
      label="Descripción"
      required
    />
  )}
/>

Using the Controller component, you don't need to specify InputLabelProps explicitly, as it will handle the label shrinking automatically. These solutions should resolve the issue with the label not shrinking when text is entered in the input fields. React Hook Form Validation with Complete Examples (https://refine.dev/blog/react-hook-form-validation-examples/#integrating-react-hook-forms) Material UI Edit Component (https://refine.dev/docs/ui-integrations/material-ui/components/basic-views/edit/#autosaveprops) ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2d ago

<@665317837656555562> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

adverse-sapphireOP•2d ago

@kapa.ai sometimes the Controller solution doesn't work and the watch solution, makes the browser lag, is there any other way?

kapa.ai•2d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I understand you're facing challenges with both the Controller and watch solutions for managing form inputs in refine with React Hook Form and Material-UI. Let's explore another approach that might help resolve your issue without causing browser lag. One alternative solution is to use the InputLabelProps with the shrink property set to true and combine it with the placeholder prop. This approach can help ensure the label always stays above the input field, regardless of whether there's content or not. Here's how you can modify your TextField components:

<TextField
  id="name"
  {...register("name", {
    required: "This field is required",
  })}
  error={!!errors.name}
  margin="normal"
  fullWidth
  label="Nombre"
  required
  name="name"
  autoFocus
  InputLabelProps={{ shrink: true }}
  placeholder="Enter name"
/>

<TextField
  id="description"
  {...register("description", {
    required: "This field is required",
  })}
  error={!!errors.description}
  margin="normal"
  label="Descripción"
  required
  name="description"
  InputLabelProps={{ shrink: true }}
  placeholder="Enter description"
/>

<TextField
  id="name"
  {...register("name", {
    required: "This field is required",
  })}
  error={!!errors.name}
  margin="normal"
  fullWidth
  label="Nombre"
  required
  name="name"
  autoFocus
  InputLabelProps={{ shrink: true }}
  placeholder="Enter name"
/>

<TextField
  id="description"
  {...register("description", {
    required: "This field is required",
  })}
  error={!!errors.description}
  margin="normal"
  label="Descripción"
  required
  name="description"
  InputLabelProps={{ shrink: true }}
  placeholder="Enter description"
/>

By setting InputLabelProps={{ shrink: true }} and adding a placeholder, the label will always be positioned above the input field, and the placeholder text will provide a visual cue for the expected input when the field is empty. If you still encounter issues with this approach, another option is to use the useWatch hook from React Hook Form, which is designed to be more performant than the watch function. Here's how you can implement it:

import { useWatch } from "react-hook-form";

// Inside your component
const nameValue = useWatch({ control, name: "name" });
const descriptionValue = useWatch({ control, name: "description" });
// Then in your TextField components
<TextField
  // ... other props
  InputLabelProps={{ shrink: !!nameValue }}
/>

<TextField
  // ... other props
  InputLabelProps={{ shrink: !!descriptionValue }}
/>

import { useWatch } from "react-hook-form";

// Inside your component
const nameValue = useWatch({ control, name: "name" });
const descriptionValue = useWatch({ control, name: "description" });
// Then in your TextField components
<TextField
  // ... other props
  InputLabelProps={{ shrink: !!nameValue }}
/>

<TextField
  // ... other props
  InputLabelProps={{ shrink: !!descriptionValue }}
/>

The useWatch hook is optimized to minimize re-renders and should provide better performance compared to the watch function. These alternatives should help you manage the label shrinking behavior without causing significant browser lag. If you continue to experience issues, it might be worth investigating if there are other factors in your application contributing to the performance problems. React Hook Form Validation with Complete Examples (https://refine.dev/blog/react-hook-form-validation-examples/#integrating-react-hook-forms) ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2d ago

<@665317837656555562> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

adverse-sapphireOP•2d ago

@kapa.ai i have an edit page that is even bigger than the create one that i have shown here. can i use useWatch for multiple textfields or i must gat an instance of each field?

kapa.ai•2d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Yes, you can use useWatch for multiple TextField components in your larger edit page without needing to create a separate instance for each field. The useWatch hook from React Hook Form allows you to watch multiple fields efficiently. Here's how you can implement it for multiple fields:

import { useWatch } from "react-hook-form";

// Inside your component
const { control } = useForm();

const watchedValues = useWatch({
  control,
  name: ["field1", "field2", "field3", "field4"], // Add all the field names you want to watch
  defaultValue: { field1: "", field2: "", field3: "", field4: "" } // Provide default values
});

// Then in your TextField components
<TextField
  // ... other props
  InputLabelProps={{ shrink: !!watchedValues.field1 }}
/>

<TextField
  // ... other props
  InputLabelProps={{ shrink: !!watchedValues.field2 }}
/>

// ... and so on for other fields

import { useWatch } from "react-hook-form";

// Inside your component
const { control } = useForm();

const watchedValues = useWatch({
  control,
  name: ["field1", "field2", "field3", "field4"], // Add all the field names you want to watch
  defaultValue: { field1: "", field2: "", field3: "", field4: "" } // Provide default values
});

// Then in your TextField components
<TextField
  // ... other props
  InputLabelProps={{ shrink: !!watchedValues.field1 }}
/>

<TextField
  // ... other props
  InputLabelProps={{ shrink: !!watchedValues.field2 }}
/>

// ... and so on for other fields

This approach allows you to watch multiple fields with a single useWatch call, which is more efficient than creating separate instances for each field. The useWatch hook will return an object containing the current values of all the watched fields, and it will update whenever any of these fields change. This method is particularly useful for larger forms as it helps to minimize re-renders and improve performance. It's a good balance between the simplicity of watch and the performance needs of a larger form. Remember, if you're still experiencing performance issues, you might want to consider breaking your form into smaller components or using techniques like memoization to optimize rendering. React Hook Form Validation with Complete Examples (https://refine.dev/blog/react-hook-form-validation-examples/#integrating-react-hook-forms) ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2d ago

<@665317837656555562> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

adverse-sapphireOP•16h ago

@kapa.ai it prompted an error: Property 'name' does not exist on type '[any, any, any, any, any, any, any, any, any, any, any, any, any, any, any]'

kapa.ai•16h ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I apologize for the confusion. The error you're encountering suggests that there's a type mismatch in how we're using the useWatch hook. Let's address this issue with a more type-safe approach. When using useWatch with multiple fields in TypeScript, we need to be more explicit about the types. Here's a corrected version that should resolve the error:

import { useWatch, UseFormReturn } from "react-hook-form";

// Assuming you have an interface for your form values
interface FormValues {
  field1: string;
  field2: string;
  field3: string;
  field4: string;
  // ... add other fields as needed
}

// Inside your component
const { control } = useForm<FormValues>();

const watchedValues = useWatch<FormValues>({
  control,
  name: ["field1", "field2", "field3", "field4"], // Add all the field names you want to watch
  defaultValue: { field1: "", field2: "", field3: "", field4: "" } // Provide default values
});

// Then in your TextField components
<TextField
  // ... other props
  InputLabelProps={{ shrink: !!watchedValues.field1 }}
/>

<TextField
  // ... other props
  InputLabelProps={{ shrink: !!watchedValues.field2 }}
/>

// ... and so on for other fields

import { useWatch, UseFormReturn } from "react-hook-form";

// Assuming you have an interface for your form values
interface FormValues {
  field1: string;
  field2: string;
  field3: string;
  field4: string;
  // ... add other fields as needed
}

// Inside your component
const { control } = useForm<FormValues>();

const watchedValues = useWatch<FormValues>({
  control,
  name: ["field1", "field2", "field3", "field4"], // Add all the field names you want to watch
  defaultValue: { field1: "", field2: "", field3: "", field4: "" } // Provide default values
});

// Then in your TextField components
<TextField
  // ... other props
  InputLabelProps={{ shrink: !!watchedValues.field1 }}
/>

<TextField
  // ... other props
  InputLabelProps={{ shrink: !!watchedValues.field2 }}
/>

// ... and so on for other fields

By specifying the FormValues interface and using it with useWatch<FormValues>, we ensure that TypeScript correctly infers the types of the watched values. If you're using useForm from @refinedev/react-hook-form, you might need to adjust the import and type declaration slightly:

import { useForm } from "@refinedev/react-hook-form";
import { UseFormReturn } from "react-hook-form";

// ... rest of the code remains the same

import { useForm } from "@refinedev/react-hook-form";
import { UseFormReturn } from "react-hook-form";

// ... rest of the code remains the same

This approach should resolve the type error you encountered while still allowing you to efficiently watch multiple fields in your larger edit form. React Hook Form Validation with Complete Examples (https://refine.dev/blog/react-hook-form-validation-examples/#integrating-react-hook-forms) If you continue to face issues, please provide more details about your form structure and the specific error message, and I'll be happy to help further. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------