ArcGIS Pro 2.6 API Reference Guide
SetBasemapLayers(Basemap) Method
Example 

ArcGIS.Desktop.Mapping Namespace > Map Class > SetBasemapLayers Method : SetBasemapLayers(Basemap) Method
A basemap.
Sets the current basemap layers in the map. This method must be called on the MCT. Use QueuedTask.Run
Syntax
public void SetBasemapLayers( 
   Basemap basemap
)
Public Overloads Sub SetBasemapLayers( _
   ByVal basemap As Basemap _
) 

Parameters

basemap
A basemap.
Exceptions
ExceptionDescription
This method or property must be called within the lambda passed to QueuedTask.Run.
Example
Remove basemap layer from a map.
aMap.SetBasemapLayers(Basemap.None);
Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

See Also

Reference

Map Class
Map Members
Overload List