java.lang.IllegalArgumentException

[pancakeleh]

i have added a delete button on the table that i have created to allow user to delete values straight from the table and the database will then be updated. however when i try to run the program an error incurred. Error: java.lang.IllegalArgumentException: unrecognized virtual form name: addIncidentStatus my code as follows:

public String Del_btn_action() {

    form1.discardSubmittedValues("addIncidentStatus");
    try {

        RowKey rk = tableRowGroup1.getRowKey();
        if (rk != null) {

          incidentStatusDataProvider.removeRow(rk);
           incidentStatusDataProvider.commitChanges();
            incidentStatusDataProvider.refresh();}

    } catch (Exception ex) {

        log("ErrorDescription", ex);
        error(ex.getMessage());
    }
    return null;
}

By the way the "addIncidentStatus" is a function in the sessionbean. May i know what went wrong?