I am getting below error when binding to radmap with collection, i am using radmap control with silverlight 4.0
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)
Message: Unhandled Error in Silverlight Application
Code: 4004
Category: ManagedRuntimeError
Message: System.NullReferenceException: Object reference not set to an instance of an object.
at Telerik.Windows.Controls.RadMap.ZoomToPoint(Point point, Int32 zoomAdjustment)
at Telerik.Windows.Controls.RadMap.OnMouseWheel(Double delta, Point point)
at Telerik.Windows.Controls.Map.MouseControl.HandleMouseWheel(Double delta, Point point)
at Telerik.Windows.Controls.Map.MouseControl.MapControl_MouseWheel(Object sender, MouseWheelEventArgs e)
at MS.Internal.CoreInvokeHandler.InvokeEventHandler(Int32 typeIndex, Delegate handlerDelegate, Object sender, Object args)
at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, Int32 actualArgsTypeIndex, String eventName)
How to Fix this issue ?
Thanks in advance