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I figured out a way to do this, so I’ll post it in
case anyone else needs to accomplish this same task: 1. Page displaying DataTable with DataScroller to scroll
through large result set: <t:dataTable id=”data” value=”#(backingbean.datamodel)”
rowIndexVar="rowindex"
rows=”#{backingbean.displayrows}”
first=”#{backingbean.pageindex}”
rendered="#{backingbean.datamodel.rowCount > 0}"
…… (snippet only) // command link to link to details page for selected
row <t:commandLink action=""
immediate="true" >
<h:outputText value="view details" />
// update pageindex property on backing bean with rowindex var from the
datatable when commandlink is clicked
<t:updateActionListener property="#{backingbean.pageindex}" value="#{rowindex}"
/> </t:commandLink> <t:dataScroller id="scroll_1"
for="" fastStep="10" pageCountVar="pagecount"
pageIndexVar="pageindex" paginatorMaxPages="9"
paginator="true" rendered="#{backingbean.datamodel.rowCount
> backingbean.displayrows}"> 2. Backing Bean
for Page displaying the DataTable (session scope) private int pageindex; // keep track of page index
within datascroller private int displayrows; // number of rows displayed
in datascroller // constructor public BackingBean() { pageindex = 0; // set initial
page index to zero or first row in backingbean.datamodel displayrows=10; } // getters & setters – setter for pageindex is one
of interest // setPageindex example: displayrows=25; current
rowindex =6; ((62/25)*25) = 2*25 = 50 (first row of datascroller) public void setPageindex(int rowindex) {
this.pageindex = ((rowindex/displayrows)* displayrows); } public int getPageindex() { return pageindex; } public int getDisplayrows() { return displayrows; } 3. Detail page
(linked to from page containing datatable) // when return to datatable page, will be placed at
same position within the datascroller <h:commandButton action="" value="Return
to DataTable Page" /> // navigation specified in faces-config.xml From: Tom Butler
[mailto: Is it possible to return to the same position within a
datascroller after leaving the page and returning (i.e., datatable displays a
large result set; user has scrolled through the data and is on the 3rd
page of data; user selects a record which links them to a detail page; now want
to return the user to the original .jsf page at the same 3rd page of
data within the datascroller)? If so, how? thanks |
