I updated to Web Edition v. 6.0
Now I get an error in my existing spatial query that run fine until now.
The error is "NullReferenceException was unhandled by user code.?
in
returnMarkers = zoomLevel.GetMarkers(markerOverlay.FeatureSource.GetFeaturesInsideBoundingBox(feature.GetShape().GetBoundingBox(), ReturningColumnsType.AllColumns))
statement:
below is complete code for the routine.
[code]
Protected
Sub Map1_TrackShapeFinished(ByVal sender As Object, ByVal e As System.EventArgs) Handles Map1.TrackShapeFinishedDim dynamicOverlay As LayerOverlay = DirectCast(Map1.CustomOverlays("DynamicOverlay"), LayerOverlay)Dim shapeLayer As InMemoryFeatureLayer = DirectCast(dynamicOverlay.Layers("shapeLayer"), InMemoryFeatureLayer)Dim markerOverlay As InMemoryMarkerOverlay = DirectCast(Map1.CustomOverlays("MarkerOverlay"), InMemoryMarkerOverlay)Dim MarkeID As String = "'"
'Dim Analyte As String = ddAnalyte.SelectedValue.ToString
'Dim cOperator As String = ddOperator.SelectedValue.ToString
'Dim cVal As String = txtValue.Text
For Each feature As Feature In Map1.EditOverlay.FeaturesDim returnMarkers As New Collection(Of Marker)Dim zoomLevel As MarkerZoomLevel = markerOverlay.ZoomLevelSet.GetZoomLevelForDrawing(GetZoomFromScale(Map1.CurrentScale, Map1.ZoomLevelSet))If Not (IsDBNull(zoomLevel)) Then
markerOverlay.FeatureSource.Open()
'returnMarkers include all markers contained within that shape
returnMarkers = zoomLevel.GetMarkers(markerOverlay.FeatureSource.GetFeaturesInsideBoundingBox(feature.GetShape().GetBoundingBox(),
markerOverlay.FeatureSource.Close()
MarkeID = MarkeID + Marker.Id +
ReturningColumnsType.AllColumns))For Each Marker As Marker In returnMarkers"','"
Next
End If
shapeLayer.InternalFeatures.Add(feature.Id, feature)
Next
End Sub
Hello Jakub,
Thanks for your post, could you please sort out your code and re-post it again? I’m confused with some parts like:
returnMarkers = zoomLevel.GetMarkers(markerOverlay.FeatureSource.GetFeaturesInsideBoundingBox(feature.GetShape().GetBoundingBox(),
markerOverlay.FeatureSource.Close()
MarkeID = MarkeID + Marker.Id +
ReturningColumnsType.AllColumns))For Each Marker As Marker In returnMarkers"’,’"
Looks like it’s some format problem, can you re-check it?
Regards,
Gary
Sub routine attached in the text file
Error is on this line
returnMarkers = zoomLevel.GetMarkers(markerOverlay.FeatureSource.GetFeaturesInsideBoundingBox(feature.GetShape().GetBoundingBox(),
ReturningColumnsType.AllColumns))
Map1_TrackShapeFinished.txt (1.45 KB)
Gary, dod you have chace to look at the error? I am unable to upgrade to versipn 6 because of that.
Any resolution to this?
I need to start using version 6
Hi Jakub,
I tried your code but looks that’s because you haven’t get features from markerOverlay.FeatureSource.GetFeaturesInsideBoundingBox, then you pass a empty collection to zoomLevel.GetMarkers function.
Could you review that?
Dim features As System.Collections.ObjectModel.Collection(Of ThinkGeo.MapSuite.Core.Feature)
features = markerOverlay.FeatureSource.GetFeaturesInsideBoundingBox(feature.GetShape().GetBoundingBox(), returningColumnsType.AllColumns)
returnMarkers = zoomLevel.GetMarkers(features)
Regards,
Don