you can't use document.getElementById() to access frames, you have to reference the frame with a variable of the same name, and your frame/iframe must have its "name" attribute defined
- Jackie clarkie342 wrote: > > After posting my question I did find a reference to the sample you have > sent below. It was well explained, but it did not work with my code. So I > tried to add it to the <HEAD> of the dotnetviewersample.aspx. It did not > work their either. > > The problem with my code as I noticed is this javascript is not able to > get a reference to my viewer frame. > As I mentioned I am using an iframe with id 'viewerFrame'. My app uses > master pages and this iframe is inside a contentplaceholder. I also tried > > document.getElementById(“viewerFrame”).contentWindow.GetMapFrame(); > > came back as object not found. Am I working with the right issues or is it > all supposed to work irrespective of the frame type? Thanks for any help. > > > Jackie Ng wrote: >> >> This is javascript code that hooks onto events from the viewer frame. >> >> So the code should go in the page that launches the viewer frame. >> >> A more detailed explaination here: >> http://trac.osgeo.org/mapguide/wiki/CodeSamples/JavaScript/AJAXViewerEventHooking >> >> - Jackie >> >> >> clarkie342 wrote: >>> >>> Hi Jason, >>> >>> I am trying to implement your suggestion below to make use of the >>> OnSelectionChanged Event Handler in mainframe.templ >>> I have a asp.net page with iframe showing a mapguide map. I want to be >>> able to do bunch of things when the user selects features on this map. >>> I am not very clear on how you are implementing your SelectionChanged >>> function instead of the original one. Where should this script go? >>> Appreciate your help. >>> >>> Thanks >>> >>> >>> Jason Birch wrote: >>>> >>>> >>>> There is an OnSelectionChanged function in the main frame, but it >>>> doesn't appear to be documented. >>>> >>>> I've just tried playing around with this, and I got the following to >>>> work when inserted into the <head> of the ajaxviewersample.php file. >>>> It does not appear to work with the DWF viewer; maybe why it's not >>>> documented? Or it could just be that my code is bad :) >>>> >>>> <script type="text/javascript" > >>>> >>>> var originalOnSelectionChanged; >>>> var initTimer = setInterval(watchInitialized, 200); >>>> >>>> function watchInitialized () { >>>> try { >>>> if(ViewerFrame.mapFrame.mapInit) >>>> { >>>> clearInterval(initTimer); >>>> originalOnSelectionChanged = ViewerFrame.OnSelectionChanged; >>>> ViewerFrame.OnSelectionChanged = MyOnSelectionChangedHandler; >>>> } >>>> } >>>> catch(Exception) {} >>>> } >>>> >>>> function MyOnSelectionChangedHandler() { >>>> originalOnSelectionChanged (); >>>> var mapFrame = ViewerFrame.GetMapFrame(); >>>> selCount = mapFrame.GetSelectedCount(); >>>> alert("Selected: " + selCount); >>>> } >>>> >>>> </script> >>>> >>>> >>>> >>>> ________________________________ >>>> >>>> From: Willem Schwarte [mailto:wil...@giskit.nl] >>>> Subject: [mapguide-users] OnSelection Event? >>>> >>>> >>>> I suppose there is no onSelectionChanged event like in MG6.5. So this >>>> would be done on a onClick? Where would I put the code for this? >>>> >>>> >>>> >>>> >>>> >>>> --------------------------------------------------------------------- >>>> To unsubscribe, e-mail: users-unsubscr...@mapguide.osgeo.org >>>> For additional commands, e-mail: users-h...@mapguide.osgeo.org >>>> >>> >>> >> >> > > -- View this message in context: http://n2.nabble.com/OnSelection-Event--tp1804304p2134420.html Sent from the MapGuide Users mailing list archive at Nabble.com. _______________________________________________ mapguide-users mailing list mapguide-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapguide-users