Let’s say that when a user clicks on something, perhaps selecting something from a DataTable or DataGrid, you want to call some server side code, and then popup a modal panel which needs to show content based on the new state setup by your server side call. In my case I have a DataGrid showing a number of items, and when a user clicks on an item I want to set the current selected item on a Seam component on the server, and then popup a modal panel to display detailed information about the item, and provide the user some actions within the modal panel.
First, create your modal panel (rich:modalPanel). I do this in a separate .xhtml file, as I will use the same model panel in various pages throughout the site. In your modal-panel.xhtml file (or whatever you choose to name it), start with a
You need to give the modalPanel a unique id, in this case we’ll call it “myModalPanel”.
Inside your modalPanel tag, you need to define an inner div. This is the div which you will be rerendering after the server action is complete. I use tags, as I’m using Seam. Ensure that any references to backing beans or data that you want refreshed are within these div tags. You must give this div a unique id as well, in this case we’ll call it “myModalDiv”.
The one limitation that I’ve run into here, and if you know how to solve this, please let me know, is that the
tags for your header text and controls can’t be inside this div, and you can’t put the div around the whole modalPanel (or it makes the panel disappear when you rerender). As such you can’t make anything from the
s be updated on rerender. This is preventing me from having the modal panel header displaying the current selected item’s name. Not great, but not the end of the world.
So inside this div you have your dynamic output. I have lots of
type entries in mine.
On your actual page where you will be displaying the modal panel from you need to include the modal-panel.xhtml file, I use a:
Then, I have my page, which includes a rich:dataGrid, and inside it has an
which creates the AJAX clickable item. This commandLink has to call the backend action, display the modal panel, and rerender your div.
This makes the panel display, and then the new content is rendered in the panel. It seems to work just how I wanted it to. With the minor annoyance of having to use a static modalPanel header.
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