useSelect - Populate Input Based on Dropdown Selection

Hi! I have the dropdown --

const { selectProps: selectProductProps } = useSelect({
        resource: "products",
        optionLabel: "ProductCode",
        optionValue: "ProductID",
    })

const { selectProps: selectProductProps } = useSelect({
        resource: "products",
        optionLabel: "ProductCode",
        optionValue: "ProductID",
    })

the resource products also returns an associated UnitPrice value. I also have an <Input/> for UnitPrice. How could I make it so that, when the user selects a product, the <Input/> is repopulated to the new UnitPrice of the product?

14 Replies

kapa.ai•12mo ago

Hi @avangeous. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- Hmm, I don't know enough to give you a confident answer yet. However, you might find the useSelect hook documentation (https://refine.dev/docs/api-reference/antd/hooks/field/useSelect/) helpful. It provides detailed information on how to use the useSelect hook with CRUD components and useForm. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•12mo ago

<@1122927158348763206> kapa.ai is still learning and improving, please let us know how it did by reacting below

probable-pink•12mo ago

@kapa.ai How can I populate a separate input based on a dropdown?

kapa.ai•12mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- To populate a separate input based on a dropdown selection, you would need to use a state management solution to store the selected value from the dropdown and then use that value to populate the input field. In the context of React and Refine, you can use the useState hook to store the selected value from the dropdown. When a user selects a product from the dropdown, you can set the state to the UnitPrice of the selected product. Then, you can use this state value to populate the UnitPrice input field. Here's a basic example of how you might do this:

import { useState } from 'react';
import { useSelect } from '@refinedev/antd';
import { Form, Select, Input } from 'antd';

const YourComponent = () => {
  const [unitPrice, setUnitPrice] = useState(null);
  const { selectProps } = useSelect({
    resource: 'products',
    optionLabel: 'ProductCode',
    optionValue: 'ProductID',
    onChange: (value, option) => {
      // Assuming the option object contains the UnitPrice
      setUnitPrice(option.UnitPrice);
    },
  });

  return (
    <Form>
      <Form.Item label="Product">
        <Select {...selectProps} />
      </Form.Item>
      <Form.Item label="Unit Price">
        <Input value={unitPrice} />
      </Form.Item>
    </Form>
  );
};

import { useState } from 'react';
import { useSelect } from '@refinedev/antd';
import { Form, Select, Input } from 'antd';

const YourComponent = () => {
  const [unitPrice, setUnitPrice] = useState(null);
  const { selectProps } = useSelect({
    resource: 'products',
    optionLabel: 'ProductCode',
    optionValue: 'ProductID',
    onChange: (value, option) => {
      // Assuming the option object contains the UnitPrice
      setUnitPrice(option.UnitPrice);
    },
  });

  return (
    <Form>
      <Form.Item label="Product">
        <Select {...selectProps} />
      </Form.Item>
      <Form.Item label="Unit Price">
        <Input value={unitPrice} />
      </Form.Item>
    </Form>
  );
};

In this example, the onChange prop of useSelect is used to update the unitPrice state whenever a new product is selected. The unitPrice state is then used as the value for the UnitPrice input field. Please note that this is a simplified example and the actual implementation might vary based on your specific use case and the structure of your data. For more information on how to use the useSelect hook, you can refer to the Refine useSelect documentation (https://refine.dev/docs/api-reference/antd/hooks/field/useSelect/). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•12mo ago

<@1122927158348763206> kapa.ai is still learning and improving, please let us know how it did by reacting below

probable-pink•12mo ago

@kapa.ai It's telling me onChange does not exist in useSelect.

kapa.ai•12mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- I apologize for the confusion. You're correct, the useSelect hook in Refine does not have an onChange prop. The useSelect hook returns selectProps which can be spread into a Select component. The Select component from Ant Design does have an onChange prop that you can use to set the state of the UnitPrice. Here's how you can do it:

import { useState } from 'react';
import { useSelect } from '@pankod/refine';
import { Select, Input, Form } from 'antd';

const YourComponent = () => {
    const [unitPrice, setUnitPrice] = useState(null);
    const { selectProps } = useSelect({
        resource: 'products',
        optionLabel: 'ProductCode',
        optionValue: 'ProductID',
    });

    const handleProductChange = (value, option) => {
        // Assuming the option object contains the UnitPrice
        setUnitPrice(option.UnitPrice);
    };

    return (
        <Form>
            <Form.Item label="Product">
                <Select {...selectProps} onChange={handleProductChange} />
            </Form.Item>
            <Form.Item label="Unit Price">
                <Input value={unitPrice} />
            </Form.Item>
        </Form>
    );
};

import { useState } from 'react';
import { useSelect } from '@pankod/refine';
import { Select, Input, Form } from 'antd';

const YourComponent = () => {
    const [unitPrice, setUnitPrice] = useState(null);
    const { selectProps } = useSelect({
        resource: 'products',
        optionLabel: 'ProductCode',
        optionValue: 'ProductID',
    });

    const handleProductChange = (value, option) => {
        // Assuming the option object contains the UnitPrice
        setUnitPrice(option.UnitPrice);
    };

    return (
        <Form>
            <Form.Item label="Product">
                <Select {...selectProps} onChange={handleProductChange} />
            </Form.Item>
            <Form.Item label="Unit Price">
                <Input value={unitPrice} />
            </Form.Item>
        </Form>
    );
};

In this example, the onChange prop is added directly to the Select component, not the useSelect hook. When a product is selected, the handleProductChange function is called, which sets the unitPrice state to the UnitPrice of the selected product. The unitPrice state is then used as the value for the UnitPrice input field. Please note that this is a simplified example and the actual implementation might vary based on your specific use case and the structure of your data. For more information on how to use the useSelect hook, you can refer to the Refine useSelect documentation (https://refine.dev/docs/api-reference/antd/hooks/field/useSelect/). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•12mo ago

<@1122927158348763206> kapa.ai is still learning and improving, please let us know how it did by reacting below

probable-pink•12mo ago

@kapa.ai The options object only contains the label (Name of the product) & the value (ID of the product) -- is there any way I can add an additional property for UnitPrice?

kapa.ai•12mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- Yes, you can add additional properties to the options object in the useSelect hook by using the mapDataToOption prop. This prop allows you to customize the structure of the options object. Here's an example of how you can add the UnitPrice to the options object:

const { selectProps } = useSelect({
    resource: "products",
    optionLabel: "ProductCode",
    optionValue: "ProductID",
    mapDataToOption: (data) => {
        return {
            label: data.ProductCode,
            value: data.ProductID,
            unitPrice: data.UnitPrice,
        };
    },
});

const { selectProps } = useSelect({
    resource: "products",
    optionLabel: "ProductCode",
    optionValue: "ProductID",
    mapDataToOption: (data) => {
        return {
            label: data.ProductCode,
            value: data.ProductID,
            unitPrice: data.UnitPrice,
        };
    },
});

In this example, the mapDataToOption prop is used to customize the structure of the options object. The function receives the original data object as a parameter and returns a new object with the label, value, and unitPrice properties. Please note that this is a simplified example and the actual implementation might vary based on your specific use case and the structure of your data. For more information on how to use the useSelect hook, you can refer to the Refine useSelect documentation (https://refine.dev/docs/api-reference/core/hooks/useSelect/). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•12mo ago

<@1122927158348763206> kapa.ai is still learning and improving, please let us know how it did by reacting below

probable-pink•12mo ago

@kapa.ai 'mapDataToOption' does not exist in type 'UseSelectProps'.

kapa.ai•12mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- I apologize for the confusion. You're correct, the useSelect hook in Refine does not have a mapDataToOption prop. The useSelect hook in Refine does not provide a direct way to add additional properties to the options object. It is designed to work with the optionLabel and optionValue props to create the options for the select component. However, you can achieve your goal by using the useQuery hook to fetch the data and then manually create the options for the select component. Here's an example:

import { useQuery } from "@refinedev/core";
import { Select, Input, Form } from "antd";
import { useState } from "react";

const YourComponent = () => {
    const [unitPrice, setUnitPrice] = useState(null);
    const { data, isLoading } = useQuery({
        resource: "products",
    });

    const options = data?.data.map((item) => ({
        label: item.ProductCode,
        value: item.ProductID,
        unitPrice: item.UnitPrice,
    }));

    const handleProductChange = (value, option) => {
        setUnitPrice(option.unitPrice);
    };

    return (
        <Form>
            <Form.Item label="Product">
                <Select options={options} onChange={handleProductChange} loading={isLoading} />
            </Form.Item>
            <Form.Item label="Unit Price">
                <Input value={unitPrice} />
            </Form.Item>
        </Form>
    );
};

import { useQuery } from "@refinedev/core";
import { Select, Input, Form } from "antd";
import { useState } from "react";

const YourComponent = () => {
    const [unitPrice, setUnitPrice] = useState(null);
    const { data, isLoading } = useQuery({
        resource: "products",
    });

    const options = data?.data.map((item) => ({
        label: item.ProductCode,
        value: item.ProductID,
        unitPrice: item.UnitPrice,
    }));

    const handleProductChange = (value, option) => {
        setUnitPrice(option.unitPrice);
    };

    return (
        <Form>
            <Form.Item label="Product">
                <Select options={options} onChange={handleProductChange} loading={isLoading} />
            </Form.Item>
            <Form.Item label="Unit Price">
                <Input value={unitPrice} />
            </Form.Item>
        </Form>
    );
};

In this example, the useQuery hook is used to fetch the data from the products resource. The data is then mapped to create the options for the Select component, including the unitPrice property. The onChange prop of the Select component is used to update the unitPrice state whenever a new product is selected. The unitPrice state is then used as the value for the UnitPrice input field. Please note that this is a simplified example and the actual implementation might vary based on your specific use case and the structure of your data. For more information on how to use the useQuery hook, you can refer to the Refine useQuery documentation (https://refine.dev/docs/api-reference/core/hooks/data/useQuery/). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•12mo ago

<@1122927158348763206> kapa.ai is still learning and improving, please let us know how it did by reacting below