ComponentOne Maps for UWP
Request Method

C1.UWP.Maps Assembly > C1.Xaml.Maps Namespace > IMapVirtualSource Interface : Request Method
The minimum zoom of the region.
The maximum zoom of the region.
The lower left coordinate of the region, in geographic coordinates.
The upper right coordinate of the region, in geographic coordinates.
A delegate to call with the elements inside the specified region.
Called from C1MapVirtualLayer when new items are needed for a map region.
Syntax
'Declaration
 
Sub Request( _
   ByVal minZoom As Double, _
   ByVal maxZoom As Double, _
   ByVal lowerLeft As Point, _
   ByVal upperRight As Point, _
   ByVal callback As Action(Of ICollection) _
) 

Parameters

minZoom
The minimum zoom of the region.
maxZoom
The maximum zoom of the region.
lowerLeft
The lower left coordinate of the region, in geographic coordinates.
upperRight
The upper right coordinate of the region, in geographic coordinates.
callback
A delegate to call with the elements inside the specified region.
See Also

Reference

IMapVirtualSource Interface
IMapVirtualSource Members