Hi Ed I explored the option of "another column that's always there" yesterday so I could have a getMagic() - to use Ed's terminology - method in a TableDecorator but hit a couple of problems with it:
- The empty column always displayed in the list - I couldn't work out how to do a hidden column as such - there was another post by someone on this subject some time ago (http://www.mail-archive.com/displaytag-user@lists.sourceforge.net/msg05162.html) but I didn't see a solution - I'd be slapped across the knuckles about "magic" not being a property of the bean (my beans are any of a significant number of DTO objects & introducing a magic field into the DTO for display purposes isn't really a runner. Is it possible to put a non-object field as a column in a displaytag table? However with a combination of a taglib function & javascript I have something that works - so in the JSP I have: > <display:column media="html" > blah... > <a href="#" > class="DATA-LINK" > > onclick="javascript:populate_parent("${pfn:buildReturnValueSelectionStr(rowObject,returnValueAssignmentPairs)}")"> > <c:out value="${rowObject[columnName]}"/> > > </display:column> > and my taglib function looks like: > public static String buildReturnValueSelectionStr(Object selectedObject, > String[] assignmentPairs){ > String returnAssignmentsStr = ""; > > for (int i=0; i<assignmentPairs.length; i++){ > String assignTo = assignmentPairs[i].split("=")[0]; > String assignFrom = assignmentPairs[i].split("=")[1]; > String fieldValue = evaluate(assignFrom, selectedObject).toString(); > returnAssignmentsStr = returnAssignmentsStr + assignTo + "=" + > fieldValue; > > if (i<assignmentPairs.length-1){ > returnAssignmentsStr += ";"; > } > } > > return returnAssignmentsStr; > } > My evaluate() is like the evaluate() in TableDecorator (with the object added as a param) & uses the displaytag LookupUtils. It seems to be behaving as hoped. Thanks for the suggestion Ed - if you've anything further to add on the problems I encountered with trying to hide a column & have a non-object field in the displaytag table, I'm all ears for future reference... Thelma -- View this message in context: http://www.nabble.com/Using-Link-on-Column-to-populate-fields-%28plural%21%29-in-parent-screen-tf4811614.html#a13861277 Sent from the DisplayTag - General mailing list archive at Nabble.com. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ displaytag-user mailing list displaytag-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/displaytag-user
