Please write always which version of jqGrid, which you use (can use), and from which fork (free jqGrid, commercial Guriddo jqGrid JS or an old jqGrid in version <=4.7).
Your requirements could be easy realized in "free jqGrid", which I develop. It allows to use groupCollapse
as callback function, which returns Boolean (see the issue). In combination with onClickGroup
callback or jqGridGroupingClickGroup
event one can easy persist the grouping state.
UPDATED: I created the demo https://jsfiddle.net/92da8xhq/, which demonstrates how one can persist the collapsing state in the grouping grid. Below I describe shortly the code. The demo uses one level of grouping to make the code more simple for understanding.
I added custom collapsedGroups: {}
parameter to jqGrid. We will use the parameter to hold the list of collapsed groups. I used collapsedGroups: { "test2": true }
in the demo to demonstrated that we can create the grid with some collapsed groups at the beginning. We don't use the value of the property of collapsedGroups
object. Just the existence of the property test2
for example means that the group with the value test2
has collapsed state.
The demo uses groupCollapse
property of groupingView
defined as the callback function. The function tests whether the group is in the list of collapsed groups (has collapsedGroups
property with some value)
groupingView: {
groupField: ["name"],
groupCollapse: function (options) {
var collapsedGroups = $(this).jqGrid("getGridParam", "collapsedGroups") || {};
// options looks like { group: number, rowid: string }
if (collapsedGroups.hasOwnProperty(options.group.value)) {
return true;
}
return false;
}
}
We adjust additionally the properties of the custom collapsedGroups
parameter after expanding/collapsing of the group. We use the following onClickGroup
callback:
onClickGroup: function (hid, isCollapsed) {
var p = $(this).jqGrid("getGridParam"),
iGroup = $(this).jqGrid("getGroupHeaderIndex", hid),
group = p.groupingView.groups[iGroup];
if (p.collapsedGroups == null) {
// be sure that the custom parameter is initialized as an empty object
p.collapsedGroups = {};
}
if (isCollapsed) {
// we place group.value in the p.collapsedGroups object as a property
if (!p.collapsedGroups.hasOwnProperty(group.value)) {
// create the property group.value in with some value
p.collapsedGroups[group.value] = true;
}
} else if (p.collapsedGroups.hasOwnProperty(group.value)) {
// remove group.value property from the p.collapsedGroups object
delete p.collapsedGroups[group.value];
}
}
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