Problem With Richfaces datatable and datascroller

[Felix Read]

I am having problems with a datatable with a datascroller where the datascroller does not
navigate and is stuck in the first column

any idea what can be going on?

[Tim Holloway]

Not without further information, I'm afraid. But the datascroller scrolls rows, not columns.

[Felix Read]

sorry rows,

well let me give you some info
i am making a dynamically editable grid.
everything works but the pagination.

first the situation, y must make a component who is dynamic datagrid where you can the info in a list of objects you recieve
and when you post you call a method with the list of objects as data.

Seeying how it is dinamic grid i decided i need first to know the colums i need.
so i created the following interface

(Excuse the naming but they are translations of the names we are using wich are in spanish).

public interface IGridConfColumn<T> extends Serializable {

	Object getValue(T data);

	void setValue(T data, Object value);

	//Returs the type of component used for modification on the grid.
	EComponentTipeForGrid getTipoComponentTipe();

	Boolean isRendered();

	String getTitel();

	Serializable getId();

	Serializable getIdData(T dato);
}

important in this is that not knowing what T is i use the getValue and setValue methods
to call the getter and setter of the corresponding objects.

now i also need a object that is gona be the reference for a ROW this object is gona
represent one row of the grid, and gona do the coresponding procesing of the diferent aspects of the ROW

public class ImplGridRow<T> implements Serializable {

	private static final long	serialVersionUID	= 4833274845660888627L;

	final T							data;

	//This is the bean representing the grid i go into more detail about it later
	final IGridData<T>			grid;

	//This is needed for a 2 way binding with the editable components and the data Object
	final Object[]					columnsData;

	final Serializable			id;

	public ImplGridRow(final T data, final IGridData<T> grid) {
		super();
		this.data = data;
		this.grid = grid;

		final List<IGridConfColumn<T>> CColumns = grid.getColumns();

		this.columnsData = new Object[CColumns.size()];

		if (CColumns.size() > 0) {
			this.id = CColumns.get(0).getIdData(data);
		} else {
			throw new Exception("No Columns Defined");
		}

		for (int idx = 0; idx < CColumns.size(); idx++) {
			this.columnsData[idx] = CColumns.get(idx).getValue(data);
		}
	}

	public T getData() {
		return this.data;
	}

	public IGridData<T> getGrid() {
		return this.grid;
	}

	public Object[] getColumnsData() {
		return this.columnsData;
	}

	public Serializable getId() {
		return this.id;
	}

	public void procesData() {
		final List<IGridConfColumn<T>> CColumns = this.grid.getColumns();

		for (int idx = 0; idx < CColumns.size(); idx++) {
			CColumns.get(idx).setValue(this.data, this.columnsData[idx]);
		}
	}

}

once i have that i made my GridBean, i left it abstract cause each individual,
must implement it with a method who is getColumnsInternal witch must return a List of IGridConfColumn<T>

public abstract class AImplGridData<T> implements IGridData<T> {

	boolean															editActive;

	private List<ImplGridRow<T>>								listRows;

	private List<T>												listData;

	private List<IGridConfColumn<T>>			columns;

	private int														numColumns;

	public AImplGridData() {
	}


	//We do this so we can garantee that the list of columns is unmodifiable.
	
	public abstract List<IGridConfColumn<T>> getColumnsInternal();

	@Override
	public List<IGridConfColumn<T>> getColumnas() {
		if (this.columnas == null) {
			this.numColumns = this.getColumnsInternal().size();
			this.columns = Collections.unmodifiableList(this.getColumnsInternal());
		}
		return this.columns;
	}

	public int getNumColumns() {
		return this.numColumns;
	}

	@Override
	public void setEditActive(final boolean active) {
		this.editActive = active;
	}

	@Override
	public boolean isEditActive() {
		return this.editActive;
	}

	@Override
	public List<T> getListData() {
		return this.listData;
	}

	@Override
	public void setListData(final List<T> listData) {
		this.listData = listData;
	}

	@Override
	public synchronized List<ImplFilaGrid<T>> getListRows() {
		if (this.listRows == null) {

			final List<T> listData = this.getListData();
			this.listaRows = new LinkedList<ImplGridRow<T>>();

			for (final T data : listData) {
				final ImplGridRow<T> row = new ImplGridRow<T>(data, this);
				this.listaRows.add(row);
			}
			this.listRows = Collections.unmodifiableList(this.listRows);
		}
		return this.listRows;
	}

	@Override
	public void processRows() {
		for (final ImplGridRow<T> row : this.listRows) {
			row.procesData();
		}
	}

}

to finish this i made a composite component.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:composite="http://java.sun.com/jsf/composite" xmlns:f="http://java.sun.com/jsf/core" xmlns:rich="http://richfaces.org/rich" xmlns:c="http://java.sun.com/jsp/jstl/core" xmlns:a4j="http://richfaces.org/a4j" xmlns:h="http://java.sun.com/jsf/html" > <composite:interface componentType="CPGrid"> <composite:attribute name="id" type="java.lang.String"></composite:attribute> <composite:attribute name="listData" type="java.util.List" ></composite:attribute> <composite:attribute name="dataGrid" type="IGridData"></composite:attribute> <composite:attribute name="edit" type="java.lang.Boolean" required="true"></composite:attribute> <composite:actionSource name="metodToRun"/> </composite:interface> <composite:implementation> #{cc.attrs.dataGrid.setListData(cc.attrs.listData)} <rich:panel id="gridPanel#{cc.attrs.id}"> <rich:dataTable id="tabla#{cc.attrs.id}" rowKeyVar="idx" value="#{cc.attrs.dataGrid.listRows}" var="row" rows="10" > <c:forEach items="#{cc.attrs.dataGrid.columns}" var="column" varStatus="loop"> <rich:column id="#{column.id}" rendered="#{column.isRendered()}" > <f:facet name="header"> #{column.titel} </f:facet> <div style="overflow:hidden;width:#{column.width}"> <rich:label value="#{row.columnsData[loop.getIndex()]}" rendered="#{!(cc.attrs.dataGrid.editActive and cc.attrs.edit) and cc.isShowText(column)}"></rich:label> <h:inputText value="#{row.columnsData[loop.getIndex()]}" rendered="#{cc.isShowText(columna) and (cc.attrs.dataGrid.editActive and cc.attrs.edit)}" ></h:inputText> <!-- and so on here we decide depending on the column configuration wich component to use to present the text by asking the CPGrid about it. --> </div> </rich:column> </c:forEach> <f:facet name="header"> <rich:dataScroller id="scrollerHead#{cc.attrs.id}" for="tabla#{cc.attrs.id}"/> </f:facet> <f:facet name="footer"> <rich:dataScroller id="scrollerFoot#{cc.attrs.id}" for="tabla#{cc.attrs.id}"/> </f:facet> </rich:dataTable> <a4j:commandButton value="Edit" render="gridPanel#{cc.attrs.id}" id="btnEdit#{cc.attrs.id}" rendered="#{!(cc.attrs.dataGrid.editActive and cc.attrs.edit)}"> <f:setPropertyActionListener value="true" target="#{cc.attrs.dataGrid.editActive}"/> </a4j:commandButton> <a4j:commandButton value="Process" render="gridPanel#{cc.attrs.id}" id="btnPost#{cc.attrs.id}" rendered="#{(cc.attrs.dataGrid.editActive and cc.attrs.edit)}"> <f:setPropertyActionListener value="false" target="#{cc.attrs.dataGrid.editActive}"/> <f:actionListener binding="#{cc.attrs.dataGrid.procesRows()}"/> <f:actionListener binding="#{cc.attrs.metodToRun}"/> </a4j:commandButton> <a4j:status> <f:facet name="start"> <h:graphicImage value="#{resource['componentes:ai.gif']}" alt="ai" style="width:16px; height:16px;"/> </f:facet> </a4j:status> </rich:panel> </composite:implementation> </html>

and for last the CPGrid which is no more than a empty container with minimal logic

@FacesComponent("CPGrid")
public class CPGrid extends UINamingContainer implements Serializable{


	protected enum Properties {
		id,
	}

	public CPGridPlantilla() {
	}

	@Override
	public String getId() {
		return (String) this.getStateHelper().get(Properties.id);
	}

	@Override
	public void setId(final String id) {
		this.getStateHelper().put(Properties.id, id);
	}

	public <T> Boolean isShowText(final IGridConfColumn<T> columna) {
		//We check what type component it has and return true if it is
	}

}

So here you have all the code, everything works perfect except the datascroller any help?

ps i did my best in the translation, maybe i missed something my bad.
all that i removed from the code is logic conserning the components to show on screen.