David Hsueh

@ghiscoding We also found this problem when setting the `frozenColumn` option by: ```js grid.setColumns([]) // 1. set a empty column grid.setColumns([{....}]) // 2. set new column list (not a TreeColumns)...

@ghiscoding @6pac Sorry for reply late, Here is a codepen: https://codepen.io/aasdkl/pen/MWbvvzx 1. When you click `1st` button, the cols will be update to `new - ...`. 2. And then click...

Hello @ghiscoding @6pac @arthur-clifford, I'd like to share a codepen about TreeCol: https://codepen.io/aasdkl/pen/RwKeOWg The TreeCol is used for **column-group** which implemented by the X-SlickGrid: ```js var oldColumns = [ {...

We can disable this feature in preferences now! :tada: https://github.com/kfahy/slack-disable-wysiwyg-bookmarklet#update