Hide the first column in the column group when the group is expanded

[mikep]

The first column in my column group is a calculated column and I only want it to display when the column is collapsed.
Can you add the Javascript to this file so that the column "rollup" is hidden when the group is collapsed?

https://jsfiddle.net/ftjhrqum/

[mikep]

Sorry, to clarify, "rollup" should be hidden when expanded and the only column visible when collapsed.

[paramvir]

This is done by setting collapsible.last of parent to null and setting showifOpen of children columns as per your requirement.

Code: [Select]

title: "Level1", align: "center", collapsible: {last: null},
colModel: [
  {title: "rollup", dataindx:"mycalc", showifOpen: false},
  {title: "project", dataindx:"company", showifOpen: true},
{title: "rank", dataindx:"rank",showifOpen: true}
]
},

https://jsfiddle.net/3jamf6x7/

PS: version of pqgrid is quite old in the jsfiddle.