i.e. buttons are placed inside map template:<!-- Base Map Style -->
<Style x:Key="BaseMapStyle" TargetType="esri:Map">
<Setter Property="IsLogoVisible" Value="False" />
<Setter Property="Background" Value="{x:Null}" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Grid Background="{TemplateBinding Background}">
<Grid x:Name="RootElement" Width="Auto" Height="Auto" />
<Rectangle x:Name="ZoomBox" Fill="#55FFFFFF" Stroke="Black" StrokeThickness="2" Visibility="Collapsed" />
<!-- Top Toolbox -->
<v:MapToolBoxView />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>MapToolBoxView looks like that:<UserControl x:Class="Xyz.Zyx.Shell.Views.MapToolBoxView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
xmlns:cmd="clr-namespace:GalaSoft.MvvmLight.Command;assembly=GalaSoft.MvvmLight.Extras.SL4"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="400"
x:Name="MapToolBoxControl">
<UserControl.DataContext>
<Binding Mode="OneWay" Path="MapToolBox" Source="{StaticResource Locator}"/>
</UserControl.DataContext>
<StackPanel Orientation="Vertical" HorizontalAlignment="Right" VerticalAlignment="Top">
<Button x:Name="SelectionQuery" Content="Info">
<i:Interaction.Triggers>
<i:EventTrigger EventName="Click">
<cmd:EventToCommand Command="{Binding Path=SelectionInfoCommand, Mode=OneWay}"
CommandParameter="{Binding ElementName=MapToolBoxControl}" />
</i:EventTrigger>
</i:Interaction.Triggers>
</Button>
</StackPanel>
</UserControl>
and ViewModel looks for instance like that:[Export]
public class MapToolBoxViewModel : BaseViewModel<MapToolBoxViewModel>
{
private readonly IIdentifyService _identifyService;
[ImportingConstructor]
public MapToolBoxViewModel(IIdentifyService identifyService)
{
_identifyService = identifyService;
SelectionInfoCommand = new RelayCommand<UIElement>(SetSelectionInfo);
}
private Draw _selectionDraw;
public Draw SelectionDraw
{
get { return _selectionDraw; }
set
{
if(_selectionDraw == value) return;
_selectionDraw = value;
InvokeProeprtyChanged(() => SelectionDraw);
}
}
public RelayCommand<UIElement> SelectionInfoCommand { get; private set; }
private void SetSelectionInfo(UIElement control)
{
ClearDrawings();
var map = VizTreeHelper.FindParent<Map>(control);
if(map == null)
{
return;
}
SelectionDraw = new Draw(map);
SelectionDraw.DrawComplete += SelectionDrawComplete;
SelectionDraw.DrawMode = DrawMode.Rectangle;
SelectionDraw.IsEnabled = true;
SelectionDraw.Map.Cursor = Cursors.Stylus;
}
private void SelectionDrawComplete(object sender, DrawEventArgs e)
{
var envelope = e.Geometry as Envelope;
if(envelope == null)
return;
var selectionEnvelopeDto = new EnvelopeDto
{
YMin = envelope.YMin,
YMax = envelope.YMax,
XMin = envelope.XMin,
XMax = envelope.XMax
};
Messenger.Default.Send(new SearchableMapLayersRequestMessage(selectionEnvelopeDto, "request",
message =>
{
_identifyService.BeginIdentifyFeaturesInSelection(message.SearchableLayers,
message.RequestParams.ToEnvelope(),
SelectionDraw.Map.Extent,
SelectionDraw.Map.ActualWidth,
SelectionDraw.Map.ActualHeight,
HandleError);
ClearDrawings();
}));
}
private void IdentifyFeatureFaild(Exception exception)
{
NotifyMessage("Error occurred, try again", NotificationType.Exception, exception, true);
}
private void ClearDrawings()
{
if(SelectionDraw == null) return;
SelectionDraw.IsEnabled = false;
SelectionDraw.Map.Cursor = Cursors.Arrow;
SelectionDraw.DrawComplete -= SelectionDrawComplete;
SelectionDraw = null;
}
}
