[mapguide-internals] Please review the patch for ticket #1850

[Bruce Li]

Hi lists,


I add a new patch "fix Ticket #1850.patch" for you review in http://trac.osgeo.org/mapguide/ticket/1850.


This patch fixed the issue: if you open a tab of map preview and minimize the studio window, an unexpected pop message will appear.

Solution:
The minimizing of studio will trigger the function of OnresizeChanged which will send a map request with an invalid parameter,
this patch add a check of parameter before sending map request. If the parameter is invalid, the map request will not be sent.


Please review. Thanks.

Bruce Li