How to clear entries from a table view

Hi All,
I am using a tableview in a BSP page. I am setting the attribute allrowseditable = 'TRUE'. The internal table I am using for the tableview contains only initial lines. Once the tableview is displayed i am entering some values on the cells. But even after triggering the DO_REQUEST the values i entered in the tableview remains, its not getting cleared eventhough my internal table contains only initial lines. I am not getting back the values from tableview in HANDLE_DATA or EVENT. Can anyone tell me why the cells in tableview is retaining the values. How can i overcome this.
Thanks,
regards
Vishnu Aravind

Hi Sebastian,
The following is the code of my view
<%@page language="abap"%>
<%@ extension name="bsp" prefix="bsp" %>
<%@ extension name="htmlb" prefix="htmlb" %>
<%@ extension name="xhtmlb" prefix="xhtmlb" %>
<%@ extension name="PlmHelp" prefix="plmhelp" %>
<htmlb:gridLayout columnSize="1"
                  rowSize="2"
                  cellSpacing="10">
<htmlb:gridLayoutCell rowIndex="1"
                      columnIndex="1">
<htmlb:tableView
                    id                     = "attribute1"
                    allRowsEditable        = "X"
                    table                  = "<%= controller->tbl_attributes %>"/>
</htmlb:gridLayoutCell>
</htmlb:gridLayout>

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