[richfaces-issues] [JBoss JIRA] (RF-11916) extendedDataTable partial update => extend the functionality with INSERT and DELETE row where scroll position does not go up.

extendedDataTable partial update => extend the functionality with INSERT and DELETE row where scroll position does not go up. ----------------------------------------------------------------------------------------------------------------------------- Key: RF-11916 URL: https://issues.jboss.org/browse/RF-11916 Project: RichFaces Issue Type: Feature Request Security Level: Public(Everyone can see) Components: component-tables Reporter: Tom Giberius Fix For: 4.Future Situation: 1) extendDataTable with a verticall ScrollBar 2) Insert or delete record by insert/delete in myBean and by a re-render of the table. 3) The re-render causes a full rebuild of the table in the DOM and the effect is that the scrollbar goes up to the beginning.In fact this makes a scrollable extendedDataTable not useful for inserting/deleting records. Partial Table Render for extendedDataTable is available in RF 4.1 with a construction like: render="myTable@rows(myBean.listOfUpdateRows):myColumn" This works fine for already available rows and indeed it is an UPDATE. Also @body, @header and @footer are available for partial table update. I would like to have a kind of partitial table INSERT and UPDATE where not the whole table is "re-draw", only the record(s) are INSERTED or DELETED and where the scroll position for the user visually stays the same. Maintaining the scroll position is the reason for this request, a user should be able to insert/delete rows any where in a scrollalbe table larger then the table height. It could look like: render="myTable(a)insert(myBean.Row) render="myTable(a)delete(myBean.RowKey) Also take care of the "selected" row: * For deletes the RowKey is passed, so no problem * For inserts one could consider: - Pass RowKey as parameter and insert before/after the given RowKey - Use the current "selected record" E.g.current selected record: * No record - then insert in first position * A record selected - insert after selected records The inserted record is anyway the new "selected row" Also with a delete you should consider what the "selected record" should be if a selected record is deleted. I use the selected record (single selection mode) in insert/delete. For that I made some changes to the JavaScript of the extendenDataTable. If you have questions I will gladly elaborate on above.