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V24.2

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MapControl.ScrollArea Property

Gets or sets a rectangular area (also called scroll area) that confines the map center point.

Namespace: DevExpress.Xpf.Map

Assembly: DevExpress.Xpf.Map.v24.2.dll

NuGet Package: DevExpress.Wpf.Map

#Declaration

public MapBounds ScrollArea { get; set; }

#Property Value

Type Description
MapBounds

The scroll area boundaries.

#Remarks

Use this property to limit scroll operations so that the map center point remains within the boundaries. To define these boundaries, specify the coordinates of the area’s top-left and bottom-right corners.

In the following animation, a rectangle depicts the scroll area boundaries and a dot indicates the map center position:

#Example

This example specifies a rectangular area that confines the map center point:

#In Code

<dxm:MapControl x:Name="map">
   ...
</dxm:MapControl>   
using DevExpress.Xpf.Map;
//...
  private void Window_Loaded(object sender, RoutedEventArgs e) {
      map.ScrollArea = new DevExpress.Map.MapBounds(
                              new GeoPoint(44.568441, -11.877712),
                              new GeoPoint(36.219329, 4.030490));
      map.CenterPoint = new GeoPoint(40.155242, -2.912869);
      map.ZoomLevel = 4.5;
  }

#In Markup

You can also specify the scroll area in markup. Coordinates are written in the following order: x1, y1, x2, y2, where x1, y1 are the top-left point’s coordinates, and x2, y2 are the bottom-right point’s coordinates.

<dxm:MapControl x:Name="map"
                ScrollArea="-11.877712, 44.568441, 4.030490, 36.219329"
                CenterPoint="40.155242, -2.912869" 
                ZoomLevel="4.5">
    ...
</dxm:MapControl>    
See Also