CanClearLinkChartContent Method

In This Topic

Determines if the content of the link chart map can be cleared. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

Visual Basic (Declaration)
C#

Public Shared Function CanClearLinkChartContent( _
   ByVal linkChart As Map _
) As Boolean

public static bool CanClearLinkChartContent( 
   Map linkChart
)

Parameters

linkChart: The link chart to clear content.

Return Value

True if the link chart content can be cleared. False otherwise.

Exceptions

Exception	Description
ArcGIS.Core.CalledOnWrongThreadException	This method or property must be called within the lambda passed to QueuedTask.Run.

Remarks

You should use this method before calling ClearLinkChartContent. The content can be cleared only if the Map is of type MapType.LinkChart and a Knowledge Graph layer already exists.

Example

Clear all content from a link chart

{
  await QueuedTask.Run(() =>
  {
    //Get the link chart to be cleared of content
    var mapPanes = FrameworkApplication.Panes.OfType<IMapPane>().ToList();
    var mapPane = mapPanes.First(
      mp => mp.MapView.IsLinkChartView &&
      mp.MapView.Map.Name == "Acme Link Chart");
    var linkChartMap = mapPane.MapView.Map;
    //Clear all content from the link chart
    if (linkChartMap.CanClearLinkChartContent())
      linkChartMap.ClearLinkChartContent();
  });
}

Requirements

Target Platforms: Windows 11 Home, Pro, Enterprise (64 bit)

ArcGIS Pro version: 3.7 or higher.

Reference

KnowledgeGraphMappingExtensions Class
KnowledgeGraphMappingExtensions Members

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