hi
i took your example lazy loading and combind it with a groupModel on Dates like
.. {title: "Datum", width: 100, dataType: "date","format":"dd.mm.yy", dataIndx: "`datum1`",editor: {type: "textbox",attr: "type='date'"},
groupChange: function (val) {
return new Date(val).getFullYear()+' '+['Jan','Feb','Mär','Apr','Mai','Jun','Jul','Aug','Sep','Okt','Nov','Dez'][new Date(val).getMonth() ]}
},
At first click on "Gruppierung ein/aus", it does not display grouped months but its showing the ungrouped dates. At second click it is grouping --- containing undefined records
Finally i played with the parameters and when i alter rpp from 100 to 10000, it's working like expected.
Could not setup a working example in jsfiddle, but you can have a look at this link:
https://deligno.chpost.ch/bad.html