Please check out a bug in the material design theme for grid pageing combobox in mobile device. 

You can check this bug at http://demos.telerik.com/kendo-ui/grid/remote-data-binding 

you have to adjust "mobile:true" option and then run by mobile simulator instead of web.

When you change the page with combobox. Grid's height will be reduced by combobox height.

This bug occured only in material design theme. (I didn't check all theme. I checked material, default, bootstrap, nova, fiori, office365)

The Grid should optionally select an entire row instead of individual cells within a row.

Use Case:
In my app, the cells are all read-only. Below just about every grid in the app is a details view (showing the selected grid row) and I want them to have up/down keyboard navigation on every grid within the app. This should be a simple configuration setting but there is currently no easy way to get this behavior.