mergeCells feature doesn't stick text in Scheduler

[chuckn0rris]

Forum post

Hi Bryntum Team,

We are using Scheduler for our project and would like to use mergeCells option. As I can see in your demo for Grid https://bryntum.com/products/grid/examples/merge-cells/ In this demo if you scroll down the name of the megredCells stays sticky unless all rows for that city will be scrolled.
So I would like to have the same thing, but for Scheduler - resources part.

I checked your example with merged Cells for Scheduler https://bryntum.com/products/scheduler/examples/merge-cells/ . In this example the mergeCells' name just scrolls out of the view. How can I make it stay sticky as in your Grid example. I have tried to change css but it seems like it's not helping. Are there any workaround on this ?

Thank you,
Maria

[ExtAnimal]

It's when there's a subgrid which offers scrolling in the X axis. It sets the subgrid to overflow-x : auto
Stickiness doesn't work with anything except overflow : visible. It's a terrible piece of design by W3C.

If the sub grid is configured with

subGridConfigs : {
    locked : {
        scrollable : {
            overflowX : 'visible',
            overflowY : 'visible'
        }
    }
}

Then the example "works".

But resizing a column wider causes the sub grid content to spill into the scheduler area. That gets fixed as the sub grid auto sizes after the mouseup.

But dragging the splitter to make the sub grid narrower completely breaks it.

The columns in the locked side have to be flexed to fit within instead of having a fixed width. So if the merged cells feature is present. column width setting must set the style like this:

column.flex = `1 1 ${width}px`;

So that the column requests its width, but flexes down if the space is not available. This requires the ColumnResize feature to have a setting which makes it set the width like this instead of using the width property.

The MergeCells feature will have to poke the ColumnResize feature to set this setting. And set the overflow of the merge column's subGrid.