A modal window to edit a particular field in a Grid
I have a grid which displays records. A record represents an object that has an attribute which is a list of strings. In the record, I want only the number of these strings (the list's length) to be on display. However, I also would like to make it so that if a user clicks on the field, a modal window opens which allows to edit all these strings, so that they be updated and sent via AJAX back to the server.
For now I have a fully-working grid with records that are taken from the server and are sent back on editing, except for that particuar fields which is required to be treated in a special way.
My best guess on how to make the field display a number of strings instead of the array that contains them - is to use a 'converter' for the value?
How can I acheive all this with ExtJS?