Remove(Index: Integer): Boolean;
Index - factor index in the collection.
The Remove method removes a factor from the collection by its index. The method returns True if the removal was executed successfully.
Executing the example requires a form, a button named Button1 on the form, the UiMap component named UiMap1 that is a data source for the MapBox component. The UiMap1 component should be linked to a map containing factors on the Regions layer.
Sub Button1OnClick(Sender: Object; Args: IMouseEventArgs);
Var
Map: IMap;
Layer: IMapLayer;
Visuals: IMapLayerVisuals;
Begin
Map := UiMap1.Map;
Layer := Map.Layers.FindByName("Regions");
Visuals := Layer.Visuals;
Visuals.Remove(0);
End Sub Button1OnClick;
After executing the example the first factor of the collection is removed from the Regions layer.
See also: