Grid Sorting is empty on the third time

[Alberto]

Hi All

 

I am using kendo UI 2016.1.112 with angular and I am having an issue with sorting, the first time e.data.sort is populated nicely with the field and direction , second time same field and direction as desc but clicking for third time get an empty array

     

     dataSource: {
        transport: {
            read: function (e) {
                if (!e.data.sort || e.data.sort.length === 0) {

                 ///WTH ..... WHY?


                }
                var sort = e.data.sort[0];
                exclusionsService.getExclusions(e.data.skip, e.data.take, sort.field, sort.dir).then(function (data) {
                    e.success(data);
                });
...

[Dimo]

Hello Alberto,

The observed behavior is expected - an empty array indicates that no sorting is currently applied.

Do you by any chance want the Grid to not allow unsorted mode?

http://docs.telerik.com/kendo-ui/api/javascript/ui/grid#configuration-sortable.allowUnsort

Regards,
Dimo
Telerik

[Alberto]

Hi Dimo

 

The first time works fine, then click on the column to apply sorting by descendant, then clicking on the same column I one to sort it back as ascendant but array is empty, that is not happening on the demo found here http://demos.telerik.com/kendo-ui/grid/angular,

In my code the maximum time I can click is twice.

 

 

[Dimo]

Hi Alberto,

I am not sure I understand. Please do the following:

1. Go to http://demos.telerik.com/kendo-ui/grid/angular
2. Execute the following code in the browser's JavaScript console:

$(".k-grid[options='mainGridOptions']").data("kendoGrid").dataSource.bind("requestStart", function(e) {
  console.log(e.sender.sort());
});

3. Click on any master Grid header cell to sort three times. You will see that the third time the sort method returns an empty array, which is normal, because the third time the column returns to unsorted state.

http://docs.telerik.com/kendo-ui/api/javascript/data/datasource#methods-sort

Here is a video:

http://screencast.com/t/xqBfQvCC8Kiy

If you want the column to be sorted ascending the third time, then set the allowUnsort property, as suggested earlier.

Let me know if I am missing something.

Regards,
Dimo
Telerik