What is the best way to create a column that adjusts its width based on the row width in a table?

Here is the code snippet that I am working with:

return (
  <Box sx={{ height: 400 }}>
    <DataGrid columns={columns} rows={rows} />
  </Box>
)

Currently, my table appears like this: https://i.sstatic.net/KWXwL.png

I am aiming for the email column to automatically adjust its width based on the widest cell in the row, resulting in a table layout like this:

https://i.sstatic.net/eeBJN.png

The structure of my columns and rows is pretty straightforward:

const columns = [ { field: "firstName" }, { field: "lastName" }, ...etc ]
const rows = [ 
   { firstName: "Camil Pasa Sokak", lastName: "In The Village", ...etc },
   ... etc
]

Is there a way to achieve this in MUI x (community table version)?

I want the column of the email to take the width of the widest row cell automatically

  • Please note: even though the table might be wide, it should still display both x and y scrollbars. I prefer not to disable these scrollbars.

For reference, you can explore a sandbox example here: https://codesandbox.io/s/strange-newton-z6pwj4?file=/src/App.js

Answer №1

After reviewing the documentation for the datatable component you're using, it seems that determining the best approach is not entirely straightforward. The main issue lies in the fact that this is a div + flexbox table rather than a traditional HTML table. This means that cells within a single column are not inherently linked to each other in the same way as they would be in a standard HTML table.

I looked into the section on column dimensions, but unfortunately, I didn't find a satisfactory solution there. I was particularly frustrated to discover that setting `maxWidth` appeared to have no effect. The closest workaround I found was to specify a fixed column width, although I'm not sure if that meets your requirements:

const columns = [{
  field: "email", width: 300,
}]

I then explored their guide on styling cells, which offers more control over customization. However, even this approach proved ineffective since the size of one flex cell doesn't influence the size of all other flex cells in the same column - resulting in varying cell sizes based on the length of email addresses in each row.

const columns = [{
  field: "email", cellClassName: "foobar",
}]

<DataGrid columns={columns} rows={rows} sx={{
  "& .foobar": {
    maxWidth: "300px !important"
  }
}} />

Given the limitations, my recommendation is to iterate through the data, identify the longest email address, and set the fixed `width` based on that value. While this is not ideal, it appears to be the only viable method for establishing dimensions in a flexbox-based table:

const longestEmail = rows.reduce((longest, row) => {
    return row.email.length > longest.length ? row.email : longest
}, '');

const columns = [{
  // Adjust the multiplier until a suitable width is achieved
  field: "email", width: longestEmail.length * 9,
}]

Answer №2

This excerpt is taken from the official Documentation. Check out the Number Signature section to learn more.

<DataGrid
  columns={[
    { field: 'username', colSpan: 2, hideable: false },
    {
      field: 'organization',
      sortable: false,
      filterable: false,
      hideable: false,
    },
    { field: 'age', hideable: false },
  ]}
  rows={rows}
  {...other}
/>

You can utilize colspan in your grid setup to make cells span across multiple columns within a column group.

const columns = [{
  field: "email",colSpan:2,
},]

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