In needing to place things in the cells of spreadsheets (such as images and my own custom controls) as can be seen in my images 1 and 2, it
I checked out the feature request provisions on your site. Since I'd like to include photos with my description, I'm hoping that it is okay that I send this to you for forwarding on to the appropriate audience.
My feature request involves the spreadsheet control in Kendo's JQuery controls
In my image 4, you can see the background color attribute of a cell div. In image 3, you can see my collection of custom controls. Each of my div.custom-control has a control_index property. I have a routine that runs periodically to reckon the location and size of each control whose background color is set to a value matching one of my cell's control indices. Once located, the controls are laid down onto their respective cells at their appropriate size (or made invisible if the target cell is scrolled off of the container).
This work around contains a lot of painful overhead. For instance, when a spreadsheet is first rendered, I have to traverse the div.k-spreadsheet-cell elements to check their background color attributes. If they qualify, a css class must be placed on the cell so that a black cell isn't presented in the time that it takes to reckon and position my custom controls.
I would be happy to discuss this further with anybody who is interested.