ratty-blush•13mo ago

To be required to enter a value in a dynamically generated textField?

{Object.entries(itemsState).map(([key, value], index) => (
        <Box key={index} sx={{display: "flex", alignItems: "center", marginBottom: 1}}>
          <TextField          
            required={true}
            label={`${index + 1}회차 이상`}
            variant="outlined"
            size="small"
            sx={{marginBottom: 1}}
            value={value || ''}
            onChange={(e) => {
              setItemsState({
                ...itemsState,
                [key]: parseInt(e.target.value),
              });
            }}
          />
          <Typography variant="h6" sx={{marginLeft: 1}}>%</Typography>
        </Box>
      ))}

{Object.entries(itemsState).map(([key, value], index) => (
        <Box key={index} sx={{display: "flex", alignItems: "center", marginBottom: 1}}>
          <TextField          
            required={true}
            label={`${index + 1}회차 이상`}
            variant="outlined"
            size="small"
            sx={{marginBottom: 1}}
            value={value || ''}
            onChange={(e) => {
              setItemsState({
                ...itemsState,
                [key]: parseInt(e.target.value),
              });
            }}
          />
          <Typography variant="h6" sx={{marginLeft: 1}}>%</Typography>
        </Box>
      ))}

5 Replies

kapa.ai•13mo ago

Hi @florent_26629. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- In the provided code, the TextField component already has the required prop set to true. This means that the field is already set to require a value before the form can be submitted. If you want to add validation messages or more complex validation rules, you would need to use a form library like react-hook-form or formik that works with Material-UI. Unfortunately, the provided extracts do not contain specific examples of using these libraries with Material-UI. However, they do contain examples of using react-hook-form with Refine's Ant Design and Material-UI integrations. Here is an example from the extracts of using react-hook-form with Refine's Ant Design integration:

<Form.Item
 label="Name"
 name="name"
 rules={[
 {
 required: true,
 },
 ]}
 >
 <Input />
</Form.Item>

<Form.Item
 label="Name"
 name="name"
 rules={[
 {
 required: true,
 },
 ]}
 >
 <Input />
</Form.Item>

In this example, the rules prop is used to specify that the input is required. If the input is not provided, the form will not be submitted. For more detailed information on how to use these libraries with Material-UI, you may want to refer to their respective documentation. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•13mo ago

<@1184365192482652173> kapa.ai is still learning and improving, please let us know how it did by reacting below

ratty-blushOP•13mo ago

@kapa.ai But The value is initialized to zero and entered, how do I modify it to receive the value?

kapa.ai•13mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- In your current code, the value of the TextField is being set to value || ''. This means that if value is 0 or undefined, the TextField will be initialized with an empty string. If you want to initialize the TextField with a value of 0, you can simply remove the || '' part. Here's how you can modify your code:

{Object.entries(itemsState).map(([key, value], index) => (
  <Box key={index} sx={{display: "flex", alignItems: "center", marginBottom: 1}}>
    <TextField          
      required={true}
      label={`${index + 1}회차 이상`}
      variant="outlined"
      size="small"
      sx={{marginBottom: 1}}
      value={value}
      onChange={(e) => {
        setItemsState({
          ...itemsState,
          [key]: parseInt(e.target.value),
        });
      }}
    />
    <Typography variant="h6" sx={{marginLeft: 1}}>%</Typography>
  </Box>
))}

{Object.entries(itemsState).map(([key, value], index) => (
  <Box key={index} sx={{display: "flex", alignItems: "center", marginBottom: 1}}>
    <TextField          
      required={true}
      label={`${index + 1}회차 이상`}
      variant="outlined"
      size="small"
      sx={{marginBottom: 1}}
      value={value}
      onChange={(e) => {
        setItemsState({
          ...itemsState,
          [key]: parseInt(e.target.value),
        });
      }}
    />
    <Typography variant="h6" sx={{marginLeft: 1}}>%</Typography>
  </Box>
))}

In this modified code, value is directly passed to the TextField. So, if value is 0, the TextField will be initialized with 0. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•13mo ago

<@1184365192482652173> kapa.ai is still learning and improving, please let us know how it did by reacting below