I want to display markers on the map for only higher zoom levels and have set:
ZoomLevel06.ApplyUntilZoomLevel =
ApplyUntilZoomLevel.Level20;
Map renders and displays as expected but when I click a button that generates a postback to the server, I get:
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[NullReferenceException: Object reference not set to an instance of an object.]
ThinkGeo.MapSuite.WebEdition.Map.x33f69bf60c5b503b(MarkerZoomLevel xbb0b6a55042a674c) +79
ThinkGeo.MapSuite.WebEdition.Map.x3371674bb1d3f783() +409
ThinkGeo.MapSuite.WebEdition.Map.LoadViewState(Object savedState) +1141
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +183
System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221
System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221
System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221
System.Web.UI.Page.LoadAllState() +312
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1661
Server Error in '/' Application.
Object reference not set to an instance of an object.
Version Information: Microsoft .NET Framework Version:2.0.50727.3053; ASP.NET Version:2.0.50727.3053