MapControl.SelectItemsByRegionBehavior Property

Gets or sets settings of the Select by Region behavior.

Namespace: DevExpress.Xpf.Map

Assembly: DevExpress.Xpf.Map.v23.2.dll

NuGet Package: DevExpress.Wpf.Map

Declaration

C#

public SelectItemsByRegionBehavior SelectItemsByRegionBehavior { get; set; }

VB.NET

Public Property SelectItemsByRegionBehavior As SelectItemsByRegionBehavior

Property Value

Type	Description
SelectItemsByRegionBehavior	The settings of the Select by Region behavior.

Remarks

A user can use the mouse pointer to draw a selection rectangle while the Shift key is pressed. Note that the MapControl.SelectionMode property is set to Multiple or Extended.

Set the SelectItemsByRegionBehavior property to null to disable selection by region.

XAML

<dxm:MapControl SelectItemsByRegionBehavior="{x:Null}">
   <!--...-->
</dxm:MapControl>

Example

The following example shows how to add pushpins to a map and use Rectangular Selection to select multiple pushpins.

• A user should press the F3 key to enable/disable Rectangular Selection.
• A user should drag the mouse pointer while holding down the left mouse button and the Ctrl key to draw a selection rectangle.

XAML

<Window xmlns:dxm="http://schemas.devexpress.com/winfx/2008/xaml/map"
        x:Class="WpfMapSample.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="500" Width="800">
    <Grid>
        <dxm:MapControl x:Name="mapControl" 
                        CenterPoint="45,18" 
                        ZoomLevel="3" 
                        SelectionMode="Multiple"> 

            <dxm:MapControl.SelectItemsByRegionBehavior>
                <dxm:SelectItemsByRegionBehavior Key="F3" 
                                                 ModifierKeys="Ctrl"/>
            </dxm:MapControl.SelectItemsByRegionBehavior>

            <dxm:ImageLayer>
                <dxm:ImageLayer.DataProvider>
                    <dxm:BingMapDataProvider Kind="RoadLight" 
                                             BingKey="Insert your BingMaps key."/>
                </dxm:ImageLayer.DataProvider>
            </dxm:ImageLayer>
            <dxm:VectorLayer x:Name="vectorLayer" 
                             DataLoaded="OnVectorLayerDataLoaded">
                <dxm:VectorLayer.Data>
                    <dxm:ListSourceDataAdapter x:Name="listSourceDataAdapter" 
                                               DataSource="{Binding}">
                        <dxm:ListSourceDataAdapter.Mappings>
                            <dxm:MapItemMappingInfo Latitude="Latitude" 
                                                    Longitude="Longitude"/>
                        </dxm:ListSourceDataAdapter.Mappings>
                        <dxm:ListSourceDataAdapter.ItemSettings>
                            <dxm:MapPushpinSettings/>
                        </dxm:ListSourceDataAdapter.ItemSettings>
                    </dxm:ListSourceDataAdapter>
                </dxm:VectorLayer.Data>
            </dxm:VectorLayer>

            <dxm:MapControl.CoordinatesPanelOptions>
                <dxm:CoordinatesPanelOptions Visible="False"/>
            </dxm:MapControl.CoordinatesPanelOptions>
            <dxm:MapControl.ScalePanelOptions>
                <dxm:ScalePanelOptions Visible="False"/>
            </dxm:MapControl.ScalePanelOptions>
        </dxm:MapControl>
    </Grid>
</Window>

C#

using DevExpress.Xpf.Map;
using System.Collections.ObjectModel;
using System.Windows;
namespace WpfMapSample {
    public partial class MainWindow : Window {
        ObservableCollection<GeoPoint> Data { get; set; }
        public MainWindow() {
            InitializeComponent();
            Data = new ObservableCollection<GeoPoint>();
            Data.Add(new GeoPoint(51.30, 0.07));
            Data.Add(new GeoPoint(52.31, 13.23));
            Data.Add(new GeoPoint(48.51, 2.21));
            Data.Add(new GeoPoint(41.54, 12.3));
            Data.Add(new GeoPoint(40.23, -3.43));
            this.DataContext = Data;
        }
        private void OnVectorLayerDataLoaded(object sender, DataLoadedEventArgs e) {
            mapControl.ZoomToFitLayerItems(new LayerBase[] { vectorLayer }, paddingFactor: 0.3);
        }
    }
}

VB.NET

Imports DevExpress.Xpf.Map
Imports System.Collections.ObjectModel

Namespace WpfMapSample
    Public Partial Class MainWindow
        Inherits Window
        Private Property Data As ObservableCollection(Of GeoPoint)
        Public Sub New()
            InitializeComponent()
            Data = New ObservableCollection(Of GeoPoint)()
            Data.Add(New GeoPoint(51.30, 0.07))
            Data.Add(New GeoPoint(52.31, 13.23))
            Data.Add(New GeoPoint(48.51, 2.21))
            Data.Add(New GeoPoint(41.54, 12.3))
            Data.Add(New GeoPoint(40.23, -3.43))
            Me.DataContext = Data
        End Sub
        Private Sub OnVectorLayerDataLoaded(ByVal sender As Object, ByVal e As DataLoadedEventArgs)
            mapControl.ZoomToFitLayerItems(New LayerBase() {vectorLayer}, paddingFactor:=0.3)
        End Sub
    End Class
End Namespace