column names are not shown if the slickgrid table is not on the screen

I’m submitting a Bug report

Your Environment

Software	Version(s)
Aurelia	2.0.2
Aurelia-Slickgrid	3.2.1
TypeScript	vanilla JS
Operating System	windows 10 20h2
NPM/Node/Yarn	14.15.4

Context

I have several tabs on in the web-application. one of my slickgrid tables is there. If I open this tab, everything goes well except the column names, they are all not displayed until I do next:

1. resize the window.
2. run this code when the tab is opened:

let cols = this.grid.getColumns();
this.grid.setColumns(cols);

issue image:

Expected Behavior

After I open any of the tabs (where there is a slickgrid table), the slickgrid table’s column names is not sized (shown) correctly and do not displayed on a page

Current Behavior

After I open any of the tabs (where there is a slickgrid table), column names must be sized (shown) correctly on a page

Possible Solution

But this is just a workaround, I believe there is better solution there.

let cols = this.grid.getColumns();
this.grid.setColumns(cols);

Code Sample

[ghiscoding]

You should ask these kind of questions on Stack Overflow where many more users could answer but to answer some of the questions

• Read Grid & DataView Events
  • use the onSelectedRowsChanged to get info of what changed (before/after), if you want to know if everything is selected then check its new length against your dataset length I guess that would work without looping through them all
• setSelectedRows is the correct way to change selection and if you need to add a setTimeout then it’s because you have a racing condition somewhere (something else is changing or rendering the grid)

[ghiscoding]

The onSelectedRowsChanged event is not from my lib but from SlickGrid itself (core) lib itself, on this line, so if you want some changes then you can contribute and create a PR (Pull Request) on 6pac/SlickGrid fork, the Example 22 was modified with that missing code for that reason.

So I think I have answered all your questions and again if you have more questions, I suggest you ask on Stack Overflow since there a lot more people that can answer (I answer some there too)

Cheers ⭐