Add Rows To Datatable

[James Ellis]

I want to be able to add rows to a datatable based on a selection from a dropdown box. So I know that you can use the ValueChangeListener to fire off an event where I should lookup the datatable and add rows to it, but I don't know how to look up the datatable nor do I know how to add a row to it once I've found it.

Any sample code out there?

[Hemanth Pillai]

Please get hold of a copy of Core JavaServer Faces by David Geary and Cay Horstmann. Chapter 5 covers this in detail.

HTH
Hemanth

[James Ellis]

I accomplished this using a panelGrid. Basically what I did was this. Create a panelGrid on a JSF page with two columns. Bind the panelGrid to a backing bean. In the getter for the panelGrid on the backing bean you can add elements to the panelGrid using code like below:

HtmlOutputText column1= new HtmlOutputText();
column1.setValue("Column 1");
column1.setStyleClass("label");
column1.setId("_"+random.nextInt());
dynamicPanel.getChildren().add(column1);
 
HtmlOutputText column2= new HtmlOutputText();
column2.setValue("Column 1");
column2.setStyleClass("label");
column2.setId("_"+random.nextInt());
dynamicPanel.getChildren().add(column2);
 
this.dynamicPanel.getChildren().add(column1);
this.dynamicPanel.getChildren().add(column2);