Restrict the min/max zoom on a Bing Map with v7 of the AJAX control? -

i'm working on site makes use of v7 of bing maps ajax control. 1 of things need restrict zoom level prevent users zoom in past level, or zoom out past level.

i found "getzoomrange" method on map object, after inspecting it, returns object literal "min" , "max" properties. so, figured overloading trick:

// "map" our bing maps object map.getzoomrange = function () {   return {     max:      14     min:      5   }; }; 

...but no. has no effect (it has appearance of zoom slider when using default dashboard).

hijacking event , preventing proceeding seems have no effect.

according bing maps support, way (which isn't particularly elegant, , results in unwelcome jitter on map) follows:

// "map" our bing maps object, overload built-in getzoomrange function // set our own min/max zoom map.getzoomrange = function () {   return {     max:      14,     min:      5   }; };  // attach handler event gets fired whenever map's view change microsoft.maps.events.addhandler(map,'viewchangestart',restrictzoom);  // forcibly set zoom our min/max whenever view starts change beyond them  var restrictzoom = function () {   if (map.getzoom() <= map.getzoomrange().min)    {     map.setview({       'zoom':       map.getzoomrange().min,       'animate':    false     });   }   else if (map.getzoom() >= map.getzoomrange().max)    {     map.setview({       'zoom':       map.getzoomrange().max,       'animate':    false     });   } };