disable grouping feature does not disable column menu "group by this field"

[imc-pp]

Ext version tested:
4.1.3.548

Browser versions tested against:
FF16

Description:

Defining a grid panel and a store like this

var localStore = Ext.create('Ext.data.JsonStore', {
    name: 'localStore',
    fields: ['name', 'data', 'skill'],
    data: [
{ 'name': 'metric one',   'data': 10, 'skill':'skill3' },
        { 'name': 'metric two',   'data':  7, 'skill':'skill3' },
        { 'name': 'metric three', 'data':  5, 'skill':'skill3' },
        { 'name': 'metric four',  'data':  2, 'skill':'skill2' },
        { 'name': 'metric five',  'data': 27, 'skill':'skill1' }
    ]
});



var sampleGrid = Ext.create('Ext.grid.Panel', {
    title: 'Sample store',
    store: localStore,
    width: 700,
    height: 700,
    features: [
        Ext.create('Ext.grid.feature.GroupingSummary', {
            id: 'groupSummary',
            groupHeaderTpl: '{name} ({rows.length})'
        })        
    ],

    columns: [
{ text: 'name',  dataIndex: 'data', width:300},
{ text: 'skill',  dataIndex: 'skill' }
    ],
    height: 200,
    width: 400,
    renderTo: Ext.getBody()
});

I would assume that

sampleGrid.getView().getFeature('groupSummary').disable();

will disable the grouping feature AND disable the grouping-column Menu ("group by this field")

However even after using the "disable" method on the feature, the column menu in the grid panel can still be clicked by the user. Thus "disabling" the grouping feature is only possible by iterating over all configured columns and set the "groupable" property to "false"

for (var i in sampleGrid.columns) {
            console.log("disable groupable on column" + sampleGrid.columns[i].dataIndex);
            sampleGrid.columns[i].groupable = false;
}

This will then also disable the column menu "Group by this field".
However I would assume that using the

getFeature('groupSummary').disable()

I can achieve the same effect without the need to iterate over all defined columns.

[mitchellsimoens]

Thanks for the report! I have opened a bug in our bug tracker.