Update Aggregate on Change with Locked columns

[Jakub Wilk]

Hello,

I followed this example of updating aggregates on change:

http://docs.telerik.com/kendo-ui/controls/data-management/grid/how-to/update-aggregates-on-change

However there is a problem with frozen (locked) columns as shown in this dojo:

http://dojo.telerik.com/oLutu

Note that upon change, ".k-footer-template" is replaced with a "normal" footer i.e. the footer that would be normally displayed if the columns were not locked. The effect is that the cells move to the left.

Is there a way to generate only the footer inside the ".k-grid-footer-wrap" without the locked cells?

Also it appears that method "footerTempalte" in the Grid object is not documented anywhere in the JavaScript api (http://docs.telerik.com/kendo-ui/api/javascript/ui/grid)

[Jakub Wilk]

I attach two images showing the problem

[Dimiter Topalov]

Hi Jakub,

The issue has already been resolved in another thread, but I will also post the answer here, so others can benefit too:

The footerTemplate() method is not documented, because it is intended for internal use only.

The described behavior occurs, because in locked columns scenarios, to tables (bodies, footers, headers) are created - one for the locked content, and one for the regular one. This leads to two elements with the .k-footer-template class.

The footerTemplate() method on the other hand returns a string for the whole footer regardless of whether there are frozen columns or not.

The described scenario is not supported out-of-the-box, but the workaround is to programmatically get only what you need from the string, returned by the footerTemplate() function, and replace with it the contents of the regular footer template.

I have modified the provided dojo with a sample implementation of the suggested approach:

http://dojo.telerik.com/oLutu/4

Please mind that the involved custom logic should be adjusted accordingly every time the grouping configuration, or the number of locked columns is modified.

Regards,
Dimiter Topalov
Telerik by Progress