I got a cast error , when i use customer IChoiceRender class ColumnRender implements IChoiceRenderer<ColumnInfo> {
public Object getDisplayValue(ColumnInfo object) { return object.getFormattedName(); } public String getIdValue(ColumnInfo object, int index) { return object.getId(); } } new DropDownChoice<ColumnInfo>(form, "columnId", columnMangerService.selectAllColumnInfo(), new ColumnRender()); I can make sure it's the right type in the data list. and the dropdownlist is show well, but it make a cast error when i save. in the getIdValue method, render only get a string object with the hashcode of ColumnInfo object. I think the error is related generics. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user