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Warning: Each child in an array or iterator should have a unique "key" prop. Check the render method of TableHeader. #1583

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binarykitchen opened this issue Sep 3, 2015 · 7 comments
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Warning: Each child in an array or iterator should have a unique "key" prop. Check the render method of TableHeader. #1583

binarykitchen opened this issue Sep 3, 2015 · 7 comments
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component: table This is the name of the generic UI component, not the React module! duplicate This issue or pull request already exists

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@binarykitchen
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I tried adding unique keys everywhere but no luck.

Probably this warning is due to an internal bug? Can you check that you assign unique keys in the iterator for table header contents?
@avocadowastaken
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+1

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@peterpuzos
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+1

AllenSH12 added a commit to AllenSH12/material-ui that referenced this issue Sep 11, 2015
@AllenSH12
[bugfix] moves key prop to TableHeaderColumn
56853fc 
- Key property was defined on the Checkbox element, causing React
to throw a warning when enumerating any TableHeaderColumns
- Fixes mui#1583
@AllenSH12 AllenSH12 mentioned this issue Sep 11, 2015
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@afilp
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afilp commented Sep 23, 2015

+1
Same in 'dialog.js'

@atlewee
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atlewee commented Oct 15, 2015

+1

@chmann
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chmann commented Oct 15, 2015

I just traced this through because it was driving me nuts. The problem is that no key is being placed on the Select All column. The key is added for the checkbox but not for the TableHeaderColumn wrapper.

...which is exactly what has already been fixed. #1625 :-) Thanks!

@oliviertassinari
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Duplicate of #2028

@tianwawawa
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move key prop is right

@zannager zannager added duplicate This issue or pull request already exists component: table This is the name of the generic UI component, not the React module! labels Dec 21, 2022
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@binarykitchen @oliviertassinari @chmann @avocadowastaken @afilp @peterpuzos @atlewee @tianwawawa @zannager