[richfaces-issues] [JBoss JIRA] Work started: (RF-1133) rich:datascroller does not reset when data model is changed

[Nick Belaevski (JIRA)]

     [ http://jira.jboss.com/jira/browse/RF-1133?page=all ]

Work on RF-1133 started by Nick Belaevski.

> rich:datascroller does not reset when data model is changed
> -----------------------------------------------------------
>
>                 Key: RF-1133
>                 URL: http://jira.jboss.com/jira/browse/RF-1133
>             Project: RichFaces
>          Issue Type: Bug
>    Affects Versions: 3.1.1
>            Reporter: henrik lindberg
>         Assigned To: Nick Belaevski
>            Priority: Critical
>             Fix For: 3.2.0
>
>
> When the datamodel for a rich:dataTable is replaced with a new model the rich:datascroller still remembers its old page index.
> Now, in order to make it work, I have to look up the UIData and set the index to 0 when I change the datamodel.
> I would expect it to either be set to 0, or to the value of "first" attribute in the rich:dataTable when its model is changed.
> This problem is blocking me from releasing my application - I have *many* affected datascrollers and doing the following for all of them would not be fun...
> // how I reset the first value - perhaps there are beter ways to do this
> 		String id = "spaceForm:content_list";
> 		UIComponent comp = FacesContext.getCurrentInstance().getViewRoot().findComponent( id );
> 		if(comp == null)
> 			throw new IllegalArgumentException("Can not find component with id = '"+id+"'");
> 		if(!(comp instanceof UIData))
> 			throw new IllegalArgumentException("Id does not refer to a UIData instance");
> 		UIData uidata = (UIData)comp;
> 		uidata.setFirst(0);

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