AG Grid doesn't resize correctly with its container

[falkoschindler]

Discussed in #2850

^{Originally posted by tz301 April 8, 2024}

Question

I have use aggrid combined with left drawer. When click button to show/hide the left drawer, aggrid style is strange, not fully fill the width.

from nicegui import ui

rows = [
    {'name': 'Alice', 'age': 18},
    {'name': 'Bob', 'age': 21},
]

left_drawer = ui.left_drawer(value=True).classes('bg-blue-100')
ui.button('click', on_click=left_drawer.toggle)

grid = ui.aggrid({
    'columnDefs': [
        {'headerName': 'Name', 'field': 'name'},
        {'headerName': 'Age', 'field': 'age'},
    ],
    'rowData': rows,
})

ui.run()

---

This can be reproduced with this tiny example:

with ui.card().style('width: 500px') as card:
    ui.aggrid({'columnDefs': [{'field': 'name'}], 'rowData': [{'name': 'Alice'}]})
ui.checkbox('Wide', on_change=lambda e: card.style('width: 1000px' if e.value else 'width: 500px'))

Strangely it doesn't happen when resizing the AG Grid directly:

grid = ui.aggrid({'columnDefs': [{'field': 'name'}], 'rowData': [{'name': 'Alice'}]}).style('width: 500px')
ui.checkbox('Wide', on_change=lambda e: grid.style('width: 1000px' if e.value else 'width: 500px'))

[vickorian]

@falkoschindler

So something like this is part of what inspired me to create #2822 since i was having so much trouble controlling the size of the grid. Rows would stick with original window size, they wouldn't flex correctly, etc. until i dropped a lot of the tailwind-css elements, went directly to style with hard pixel values, and passed " 'resizeable':True" explicitly in defaultColDef of ui.aggrid.

I attempted to expand the container size and have AgGrid match container dimensions but had to drop that after a while and do like you did and resize the table directly.

I'm working on a client project right now with nicegui, but when i get to a stopping point i was planning on investigating anyways since i'll be needing nicegui for future work.

[wasabismile]

I have also encountered this issue. I resolved it by adding the following code in aggrid.js. Hope this helps.

onGridSizeChanged: this.auto_size_columns ? (params) => params.api.sizeColumnsToFit() : undefined,

[falkoschindler]

Nice, @wasabismile!

We can use this workaround by passing the "onGridSizeChange" event handler to the options dictionary:

with ui.card().style('width: 500px') as card:
    ui.aggrid({
        'columnDefs': [{'field': 'name'}],
        'rowData': [{'name': 'Alice'}],
        ':onGridSizeChanged': '(params) => params.api.sizeColumnsToFit()',
    })
ui.checkbox('Wide', on_change=lambda e: card.style('width: 1000px' if e.value else 'width: 500px'))

[falkoschindler]

I managed to integrate this solution into aggrid.js, so we can finally resolve this issue. 🚀