Grid with Bound Form in Window

This example illustrates how to implement a common scenario where UI consists of a grid that shows a read-only list of records and a form where it is possible to edit these records. The same form can be used to add a new, blank record. All four CRUD operations are implemented with writes to the server. The demo server does everything like a real server except writing to a real database.

Live Demo

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Main Features

  • full featured, production ready, well-written code
  • all four CRUD operations implemented
  • the server code simulates real-world responses – does not write in a real database, though
  • grid store defined in ViewModel loaded from server
  • grid selection propagated to upper level viewmodel
  • form fields bound to the selected record
  • validation rules defined on data model and used by form fields
  • reusable form window that is not destroyed when closed
  • formula to provide data for enabling/disabling button
  • field Base override to publish also invalid value – needed for Save enable/disable logic
  • grid Action column override to enable font icon support
  • does not use data session

Use Case

This approach can be used whenever you want to edit grid records in a form window. It can be, for example, when grid shows only a couple of fields, but the form would allow editing of all available fields.

Another situation could be when form fields are complicated extensions and/or their interrelation is complex hence grid cell or row editing wouldn’t do.

Example Files (relative to example root)

The example has been initially generated with sencha generate app in a workspace. The following list contains only the relevant files:

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  1. alex says

    On my mind, it’s not a very good solution, considering that window size is limited with the parent grid size. IMHO it would be better to send a data to viewmodel of a window at it’s creation.

  2. Ventsyslav Vassilev says

    Curious to see similar example, but with the form fields being comboboxes, which load their stores from the server (50+ records) when the window is shown. I mean the situation when the loadRecord method of the form get called before the combos are populated

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