====== ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay ======

{{section>upgrade_map_suite_to_10.0}}

Represents a MarkerOverlay object that dynamically creates markers from the InMemory features.
===== Inheritance Hierarchy =====
  *System.Object
    *ThinkGeo.MapSuite.WpfDesktopEdition.Overlay
      *ThinkGeo.MapSuite.WpfDesktopEdition.MarkerOverlay
        ***ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay**
===== Members Summary =====
==== Public Constructors ====
** {{wiki:PublicMethod.gif|}} InMemoryMarkerOverlay() **

  * //Constructor of the InMemoryMarkerOverlay class.//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#InMemoryMarkerOverlay.28.29//
== Parameters ==
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** {{wiki:PublicMethod.gif|}} InMemoryMarkerOverlay(IEnumerable<FeatureSourceColumn>) **

  * //Constructor of the InMemoryMarkerOverlay class.//
== Remarks ==
  * //For the most updated Info for this topic, please check it here://
== Parameters ==
  * //featureColumns//
    * Type:IEnumerable<[[ThinkGeo.MapSuite.Core.FeatureSourceColumn|FeatureSourceColumn]]>
    * Description:This parameter indicates the feature source columns for InMemoryMarkerOverlay.

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==== Protected Constructors ====
==== Public Methods ====
** {{wiki:PublicMethod.gif|}} GetMarkersForDrawing(RectangleShape) **

  * //This method gets a marker collection for drawing on the overlay.//
== Remarks ==
  * //This is a wrapper method for the abstract method GetDrawingMarkersCore.//

== Return Value ==
  * Type:[[ThinkGeo.MapSuite.Core.GeoCollection<T>[[ThinkGeo.MapSuite.WpfDesktopEdition.Marker, WpfDesktopEdition, Version=9.0.0.0, Culture=neutral, PublicKeyToken=null]]|GeoCollection<T>]]
  * Description:An marker collection for drawing.

== Parameters ==
  * //boundingBox//
    * Type:[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]
    * Description:This parameter is the extent in world coordinate for requesting markers.

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** {{wiki:PublicMethod.gif|}} Refresh(IEnumerable<RectangleShape>) **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here://

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //extentsToRefresh//
    * Type:IEnumerable<[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]>
    * Description:N/A

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** {{wiki:PublicMethod.gif|}} Refresh(TimeSpan) **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#Refresh.28TimeSpan.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //bufferTime//
    * Type:TimeSpan
    * Description:N/A

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** {{wiki:PublicMethod.gif|}} Refresh(TimeSpan,RequestDrawingBufferTimeType) **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here://

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //bufferTime//
    * Type:TimeSpan
    * Description:N/A

  * //bufferTimeType//
    * Type:[[ThinkGeo.MapSuite.Core.RequestDrawingBufferTimeType|RequestDrawingBufferTimeType]]
    * Description:N/A

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** {{wiki:PublicMethod.gif|}} Refresh(RectangleShape,TimeSpan) **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#Refresh.28RectangleShape.2C_TimeSpan.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //extentToRefresh//
    * Type:[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]
    * Description:N/A

  * //bufferTime//
    * Type:TimeSpan
    * Description:N/A

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** {{wiki:PublicMethod.gif|}} Refresh(RectangleShape,TimeSpan,RequestDrawingBufferTimeType) **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here://

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //extentToRefresh//
    * Type:[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]
    * Description:N/A

  * //bufferTime//
    * Type:TimeSpan
    * Description:N/A

  * //bufferTimeType//
    * Type:[[ThinkGeo.MapSuite.Core.RequestDrawingBufferTimeType|RequestDrawingBufferTimeType]]
    * Description:N/A

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** {{wiki:PublicMethod.gif|}} Refresh(IEnumerable<RectangleShape>,TimeSpan) **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here://

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //extentsToRefresh//
    * Type:IEnumerable<[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]>
    * Description:N/A

  * //bufferTime//
    * Type:TimeSpan
    * Description:N/A

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** {{wiki:PublicMethod.gif|}} Refresh(IEnumerable<RectangleShape>,TimeSpan,RequestDrawingBufferTimeType) **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here://

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //extentsToRefresh//
    * Type:IEnumerable<[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]>
    * Description:N/A

  * //bufferTime//
    * Type:TimeSpan
    * Description:N/A

  * //bufferTimeType//
    * Type:[[ThinkGeo.MapSuite.Core.RequestDrawingBufferTimeType|RequestDrawingBufferTimeType]]
    * Description:N/A

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** {{wiki:PublicMethod.gif|}} Initialize(MapArguments) **

  * //This method initializes overlay object.//
== Remarks ==
  * //This is a wrapper method for the virtual method InitializeCore.//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //mapArguments//
    * Type:[[ThinkGeo.MapSuite.WpfDesktopEdition.MapArguments|MapArguments]]
    * Description:This parameter maintains current map information for calculating mechanism.

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** {{wiki:PublicMethod.gif|}} Refresh(RectangleShape) **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#Refresh.28RectangleShape.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //extent//
    * Type:[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]
    * Description:N/A

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** {{wiki:PublicMethod.gif|}} Refresh() **

  * //This method refreshes all the content in the OverlayCanvas. For example, LayerOverlay with multiple tiles; when the style of one layer is changed, call Refresh to refresh all the tiles to accept new styles.//
== Remarks ==
  * //The difference from Draw() method is that Refresh() method refreshs all the elements while Draw() does not.//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
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** {{wiki:PublicMethod.gif|}} Close() **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#Close.28.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
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** {{wiki:PublicMethod.gif|}} Open() **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#Open.28.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
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** {{wiki:PublicMethod.gif|}} Draw(RectangleShape) **

  * //This method draws the overlay with the provided extent in world coordinate.//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#Draw.28RectangleShape.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //targetExtent//
    * Type:[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]
    * Description:This parameter indicates an extent in world coordinate for drawing the overlay.

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** {{wiki:PublicMethod.gif|}} Draw(RectangleShape,OverlayRefreshType) **

  * //This method draws the overlay with the provided extent in world coordinate.//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#Draw.28RectangleShape.2C_OverlayRefreshType.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //targetExtent//
    * Type:[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]
    * Description:This parameter indicates an extent in world coordinate for drawing the overlay.

  * //refreshType//
    * Type:[[ThinkGeo.MapSuite.WpfDesktopEdition.OverlayRefreshType|OverlayRefreshType]]
    * Description:This parameter indicates whether the elements of this overlay needs to be refreshed. For example, TileOverlay is formed by tiles. When panning the map around, the existing tile doesn't need to be redraw, the only thing we need to do is modifying the position of these tiles. On another hand, when click to change the style of the overlay, we need to redraw the tile images to change the appearance. So we need refresh mode.

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** {{wiki:PublicMethod.gif|}} PanTo(RectangleShape) **

  * //This method pans the overlay to the provided world extent.//
== Remarks ==
  * //Some overlay doesn't need to continously drawing all the tile. For example, MarkerOverlay is formed by markers. When mouse down to pan, the markers don't need to redraw, we can only change its position. When mouse up to end panning, we can redraw the overlay for better performance.//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //targetExtent//
    * Type:[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]
    * Description:This parameter is the target world extent for panning.

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** {{wiki:PublicMethod.gif|}} GetBoundingBox() **

  * //This method gets a bounding box of the Overlay.//
== Remarks ==
  * //This method is the concrete wrapper for the abstract method GetBoundingBoxCore. This method returns the bounding box of the Overlay. As this is a concrete public method that wraps a Core method, we reserve the right to add events and other logic to pre- or post-process data returned by the Core version of the method. In this way, we leave our framework open on our end, but also allow you the developer to extend our logic to suit your needs. If you have questions about this, please contact our support team as we would be happy to work with you on extending our framework.//

== Return Value ==
  * Type:[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]
  * Description:A RectangleShape indicating the bounding box of this overlay

== Parameters ==
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** {{wiki:PublicMethod.gif|}} SaveState() **

  * //This method saves overlay state to a byte array.//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#SaveState.28.29//

== Return Value ==
  * Type:Byte[]
  * Description:A byte array indicates current overlay state.

== Parameters ==
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** {{wiki:PublicMethod.gif|}} LoadState(Byte[]) **

  * //This method restore the overlay state back from the specified state.//
== Remarks ==
  * //For the most updated Info for this topic, please check it here://

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //state//
    * Type:Byte[]
    * Description:This parameter indicates the state for restore the overlay.

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** {{wiki:PublicMethod.gif|}} Dispose() **

  * //This method dispose unmanaged resource used in this class.//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#Dispose.28.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
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** {{wiki:PublicMethod.gif|}} ToString() **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#ToString.28.29//

== Return Value ==
  * Type:String
  * Description:N/A

== Parameters ==
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** {{wiki:PublicMethod.gif|}} Equals(Object) **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#Equals.28Object.29//

== Return Value ==
  * Type:Boolean
  * Description:N/A

== Parameters ==
  * //obj//
    * Type:Object
    * Description:N/A

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** {{wiki:PublicMethod.gif|}} GetHashCode() **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#GetHashCode.28.29//

== Return Value ==
  * Type:Int32
  * Description:N/A

== Parameters ==
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** {{wiki:PublicMethod.gif|}} GetType() **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#GetType.28.29//

== Return Value ==
  * Type:Type
  * Description:N/A

== Parameters ==
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==== Protected Methods ====
** {{wiki:ProtectedMethod.gif|}} DrawCore(RectangleShape,OverlayRefreshType) **

  * //This method creates markers by the passed parameters.//
== Remarks ==
  * //When overriding this method; consider dispose the old image source in the existing markers; or else some image source cannot be recycled.//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //targetExtent//
    * Type:[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]
    * Description:A world extent that to query features that for creating markers.

  * //overlayRefreshType//
    * Type:[[ThinkGeo.MapSuite.WpfDesktopEdition.OverlayRefreshType|OverlayRefreshType]]
    * Description:This parameter indicates whether needs to redraw this overlay.

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** {{wiki:ProtectedMethod.gif|}} GetMarkersForDrawingCore(RectangleShape) **

  * //Returns a collection of markers based on the extent and zoomlevel that you passed in.//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#GetMarkersForDrawingCore.28RectangleShape.29//

== Return Value ==
  * Type:[[ThinkGeo.MapSuite.Core.GeoCollection<T>[[ThinkGeo.MapSuite.WpfDesktopEdition.Marker, WpfDesktopEdition, Version=9.0.0.0, Culture=neutral, PublicKeyToken=null]]|GeoCollection<T>]]
  * Description:A collection of marker objects that will be placed on the map.

== Parameters ==
  * //boundingBox//
    * Type:[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]
    * Description:The extent that includes the markers you want to serialize.

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** {{wiki:ProtectedMethod.gif|}} GetBoundingBoxCore() **

  * //This method gets an entire boundingbox to maintain all the markers which are added in this overlay.//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#GetBoundingBoxCore.28.29//

== Return Value ==
  * Type:[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]
  * Description:Returns a RectangleShape that maintains all the markers which are added in this overlay.

== Parameters ==
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** {{wiki:ProtectedMethod.gif|}} InitializeCore(MapArguments) **

  * //This method initializes overlay object.//
== Remarks ==
  * //When implementing this method, consider initializing the overlay canvas such as setting its z-index, setting current map reference to the CurrentMap property.//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //mapArguments//
    * Type:[[ThinkGeo.MapSuite.WpfDesktopEdition.MapArguments|MapArguments]]
    * Description:This parameter maintains current map information for calculating mechanism.

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** {{wiki:ProtectedMethod.gif|}} RefreshCore(RectangleShape) **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#RefreshCore.28RectangleShape.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //extent//
    * Type:[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]
    * Description:N/A

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** {{wiki:ProtectedMethod.gif|}} RefreshCore() **

  * //This method refreshes all the content in the OverlayCanvas. For example, LayerOverlay with multiple tiles; when the style of one layer is changed, call Refresh to refresh all the tiles to accept new styles.//
== Remarks ==
  * //The difference from Draw() method is that Refresh() method refreshs all the elements while Draw() does not.//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
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** {{wiki:ProtectedMethod.gif|}} CloseCore() **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#CloseCore.28.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
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** {{wiki:ProtectedMethod.gif|}} OpenCore() **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#OpenCore.28.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
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** {{wiki:ProtectedMethod.gif|}} 4hM=(GeoCanvas) **

  * //N/A//
== Remarks ==
  * //N/A//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //canvas//
    * Type:[[ThinkGeo.MapSuite.Core.GeoCanvas|GeoCanvas]]
    * Description:N/A

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** {{wiki:ProtectedMethod.gif|}} DrawAttributionCore(GeoCanvas) **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#DrawAttributionCore.28GeoCanvas.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //canvas//
    * Type:[[ThinkGeo.MapSuite.Core.GeoCanvas|GeoCanvas]]
    * Description:N/A

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** {{wiki:ProtectedMethod.gif|}} OnDrawingAttribution(DrawingAttributionOverlayEventArgs) **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#OnDrawingAttribution.28DrawingAttributionOverlayEventArgs.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //args//
    * Type:[[ThinkGeo.MapSuite.WpfDesktopEdition.DrawingAttributionOverlayEventArgs|DrawingAttributionOverlayEventArgs]]
    * Description:N/A

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** {{wiki:ProtectedMethod.gif|}} OnDrawnAttribution(DrawnAttributionOverlayEventArgs) **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#OnDrawnAttribution.28DrawnAttributionOverlayEventArgs.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //args//
    * Type:[[ThinkGeo.MapSuite.WpfDesktopEdition.DrawnAttributionOverlayEventArgs|DrawnAttributionOverlayEventArgs]]
    * Description:N/A

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** {{wiki:ProtectedMethod.gif|}} PanToCore(RectangleShape) **

  * //This method pans the overlay to the provided world extent.//
== Remarks ==
  * //Some overlay doesn't need to continously drawing all the tile. For example, MarkerOverlay is formed by markers. When mouse down to pan, the markers don't need to redraw, we can only change its position. When mouse up to end panning, we can redraw the overlay for better performance.//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //targetExtent//
    * Type:[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]
    * Description:This parameter is the target world extent for panning.

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** {{wiki:ProtectedMethod.gif|}} OnDrawing(DrawingOverlayEventArgs) **

  * //This method raises before the overlay is drawing.//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#OnDrawing.28DrawingOverlayEventArgs.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //e//
    * Type:[[ThinkGeo.MapSuite.WpfDesktopEdition.DrawingOverlayEventArgs|DrawingOverlayEventArgs]]
    * Description:This parameter is the event argument for Drawing event.

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** {{wiki:ProtectedMethod.gif|}} OnDrawn(DrawnOverlayEventArgs) **

  * //This method raises after the overlay is drawn.//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#OnDrawn.28DrawnOverlayEventArgs.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //e//
    * Type:[[ThinkGeo.MapSuite.WpfDesktopEdition.DrawnOverlayEventArgs|DrawnOverlayEventArgs]]
    * Description:This parameter is the event argument for Drawn event.

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** {{wiki:ProtectedMethod.gif|}} SaveStateCore() **

  * //This method saves overlay state to a byte array.//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#SaveStateCore.28.29//

== Return Value ==
  * Type:Byte[]
  * Description:A byte array indicates current overlay state.

== Parameters ==
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** {{wiki:ProtectedMethod.gif|}} LoadStateCore(Byte[]) **

  * //This method restore the overlay state back from the specified state.//
== Remarks ==
  * //For the most updated Info for this topic, please check it here://

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //state//
    * Type:Byte[]
    * Description:This parameter indicates the state for restore the overlay.

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** {{wiki:ProtectedMethod.gif|}} Finalize() **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#Finalize.28.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
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** {{wiki:ProtectedMethod.gif|}} Dispose(Boolean) **

  * //This method dispose unmanaged resource used in this class.//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#Dispose.28Boolean.29//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //disposing//
    * Type:Boolean
    * Description:N/A

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** {{wiki:ProtectedMethod.gif|}} OnRefreshing(OverlayRefreshType) **

  * //N/A//
== Remarks ==
  * //N/A//

== Return Value ==
  * Type:Void
  * Description:N/A

== Parameters ==
  * //refreshType//
    * Type:[[ThinkGeo.MapSuite.WpfDesktopEdition.OverlayRefreshType|OverlayRefreshType]]
    * Description:N/A

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** {{wiki:ProtectedMethod.gif|}} MemberwiseClone() **

  * //N/A//
== Remarks ==
  * //For the most updated Info for this topic, please check it here:http:wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#MemberwiseClone.28.29//

== Return Value ==
  * Type:Object
  * Description:N/A

== Parameters ==
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==== Public Properties ====
** {{wiki:PublicProperty.gif|}} Columns **

Gets the collection of FeatureSourceColumns that is the column definition of the feature data.
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#Columns
== Return Value ==
  * Type:Collection<[[ThinkGeo.MapSuite.Core.FeatureSourceColumn|FeatureSourceColumn]]>

** {{wiki:PublicProperty.gif|}} FeatureSource **

Gets a FeatureSource object by which you can perform queries on the features in the overlay.
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#InMemoryMarkerOverlay.28IEnumerable.3CFeatureSourceColumn.3E.29
== Return Value ==
  * Type:[[ThinkGeo.MapSuite.Core.InMemoryFeatureSource|InMemoryFeatureSource]]

** {{wiki:PublicProperty.gif|}} ZoomLevelSet **

This property gets the ZoomLevelSet object that controls the markers' generation.
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#ZoomLevelSet
== Return Value ==
  * Type:[[ThinkGeo.MapSuite.WpfDesktopEdition.MarkerZoomLevelSet|MarkerZoomLevelSet]]

** {{wiki:PublicProperty.gif|}} AutoRefreshInterval **

N/A
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#AutoRefreshInterval
== Return Value ==
  * Type:TimeSpan

** {{wiki:PublicProperty.gif|}} Name **

Gets or sets the name of this overaly.
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#Name
== Return Value ==
  * Type:String

** {{wiki:PublicProperty.gif|}} MapArguments **

Gets or sets current map information which will be used for calculating mechanism.
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#Initialize.28MapArguments.29
== Return Value ==
  * Type:[[ThinkGeo.MapSuite.WpfDesktopEdition.MapArguments|MapArguments]]

** {{wiki:PublicProperty.gif|}} OverlayCanvas **

Gets or sets the actual canvas which maintains all the visual elements on the overlay.
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#OverlayCanvas
== Return Value ==
  * Type:Canvas

** {{wiki:PublicProperty.gif|}} IsBase **

N/A
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#IsBase
== Return Value ==
  * Type:Boolean

** {{wiki:PublicProperty.gif|}} CanRefreshRegion **

N/A
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#CanRefreshRegion
== Return Value ==
  * Type:Boolean

** {{wiki:PublicProperty.gif|}} DrawingExceptionMode **

This property gets and sets the DrawingExceptionMode used when an exception occurs during drawing.
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#DrawingExceptionMode
== Return Value ==
  * Type:[[ThinkGeo.MapSuite.Core.DrawingExceptionMode|DrawingExceptionMode]]

** {{wiki:PublicProperty.gif|}} IsVisible **

Gets or sets if this overlay is visible.
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#IsVisible
== Return Value ==
  * Type:Boolean

** {{wiki:PublicProperty.gif|}} Attribution **

N/A
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#DrawAttributionCore.28GeoCanvas.29
== Return Value ==
  * Type:String

** {{wiki:PublicProperty.gif|}} IsEmpty **

This property gets if this overlay is empty or not.
== Remarks ==
This property enhances the performance of the overlay while drawing. If is true, we will skip drawing this overlay and continue drawing the next overlay.
== Return Value ==
  * Type:Boolean

==== Protected Properties ====
** {{wiki:ProtectedProperty.gif|}} PreviousExtent **

Gets or sets the previous exent of the overlay.
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#PreviousExtent
== Return Value ==
  * Type:[[ThinkGeo.MapSuite.Core.RectangleShape|RectangleShape]]

** {{wiki:ProtectedProperty.gif|}} 3BM= **

N/A
== Remarks ==
N/A
== Return Value ==
  * Type:Double

** {{wiki:ProtectedProperty.gif|}} IsOverlayInitialized **

Gets or sets if the overlay canvas is initialized.
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#IsOverlayInitialized
== Return Value ==
  * Type:Boolean

==== Public Events ====
** {{wiki:PublicEvent.gif|}} Drawing **
This event raises before the overlay is drawing.
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#GetMarkersForDrawing.28RectangleShape.29

Event Arguments:[[ThinkGeo.MapSuite.WpfDesktopEdition.DrawingOverlayEventArgs|DrawingOverlayEventArgs]]

** {{wiki:PublicEvent.gif|}} Drawn **
This event raises after the overlay is drawn.
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#OnDrawn.28DrawnOverlayEventArgs.29

Event Arguments:[[ThinkGeo.MapSuite.WpfDesktopEdition.DrawnOverlayEventArgs|DrawnOverlayEventArgs]]

** {{wiki:PublicEvent.gif|}} DrawingAttribution **
N/A
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#OnDrawingAttribution.28DrawingAttributionOverlayEventArgs.29

Event Arguments:[[ThinkGeo.MapSuite.WpfDesktopEdition.DrawingAttributionOverlayEventArgs|DrawingAttributionOverlayEventArgs]]

** {{wiki:PublicEvent.gif|}} DrawnAttribution **
N/A
== Remarks ==
For the most updated Info for this topic, please check it here:http://wiki.thinkgeo.com/wiki/ThinkGeo.MapSuite.WpfDesktopEdition.InMemoryMarkerOverlay#OnDrawnAttribution.28DrawnAttributionOverlayEventArgs.29

Event Arguments:[[ThinkGeo.MapSuite.WpfDesktopEdition.DrawnAttributionOverlayEventArgs|DrawnAttributionOverlayEventArgs]]