/// <summary>
/// Event handler for layer selection change.
/// </summary>
/// <param name="mapViewArgs">An instance of the MapViewEventArgs.</param>
private async void SelectedLayersChanged(ArcGIS.Desktop.Mapping.Events.MapViewEventArgs mapViewArgs)
{
// Check if there is an active map view.
if (MapView.Active != null)
{
// Gets the selected layers from the current Map.
IReadOnlyList <Layer> selectedLayers = MapView.Active.GetSelectedLayers();
// The combo box will update only if one layer is selected.
if (selectedLayers.Count == 1)
{
// Gets the selected layer.
Layer firstSelectedLayer = selectedLayers.First();
// Make sure the selected layer is an image service layer.
if (firstSelectedLayer != null && firstSelectedLayer is ImageServiceLayer)
{
// Initiates the combox box selected item.
//InitializeComboBox();
await QueuedTask.Run(() =>
{
// Get and store the rendering rule of the selected image service layer.
renderingRule_default = (firstSelectedLayer as ImageServiceLayer).GetRenderingRule();
});
}
}
}
else
{
MessageBox.Show("There is no active map.", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
/// <summary>
/// Event handler for layer selection changes.
/// </summary>
private void SelectedLayersChanged(ArcGIS.Desktop.Mapping.Events.MapViewEventArgs mapViewArgs)
{
State state = (FrameworkApplication.Panes.ActivePane != null) ? FrameworkApplication.Panes.ActivePane.State : null;
if (state != null)
{
IReadOnlyList <Layer> selectedLayers = mapViewArgs.MapView.GetSelectedLayers();
if (selectedLayers.Count == 1)
{
state.Activate("esri_custom_mutipleLayersNotSelectedState");
}
else
{
state.Deactivate("esri_custom_mutipleLayersNotSelectedState");
return;
}
Layer firstSelectedLayer = selectedLayers.First();
if (firstSelectedLayer != null)
{
if (firstSelectedLayer is ImageServiceLayer && !(firstSelectedLayer is ImageMosaicSubLayer))
{
state.Activate("esri_custom_imageServiceLayerSelectedState");
}
else
{
state.Deactivate("esri_custom_imageServiceLayerSelectedState");
}
}
else
{
state.Deactivate("esri_custom_imageServiceLayerSelectedState");
}
}
}
// when selection on the TOC changes, update the SketchLayer
private void OnTOCSelectionChanged(ArcGIS.Desktop.Mapping.Events.MapViewEventArgs args)
{
if (args == null)
{
return;
}
SetSketchLayer();
}
private void OnMapViewIntialized(ArcGIS.Desktop.Mapping.Events.MapViewEventArgs args)
{
if (_eventToken != null)
{
ArcGIS.Desktop.Mapping.Events.MapViewInitializedEvent.Unsubscribe(_eventToken);
_eventToken = null;
}
GetActiveMapLayerGDBPathAsync();
}
/// <summary>
/// Event handler for layer selection changes.
/// </summary>
private async void SelectedLayersChanged(ArcGIS.Desktop.Mapping.Events.MapViewEventArgs mapViewArgs)
{
// Clears the combo box items when layer selection changes.
Clear();
// Checks the state of the active pane.
// Returns the active pane state if the active pane is not null, else returns null.
State state = (FrameworkApplication.Panes.ActivePane != null) ? FrameworkApplication.Panes.ActivePane.State : null;
if (state != null && mapViewArgs.MapView != null)
{
// Gets the selected layers from the current Map.
IReadOnlyList <Layer> selectedLayers = mapViewArgs.MapView.GetSelectedLayers();
// The combo box will update only if one layer is selected.
if (selectedLayers.Count == 1)
{
// Gets the selected layer.
Layer firstSelectedLayer = selectedLayers.First();
// The combo box will update only if a raster layer is selected.
if (firstSelectedLayer != null && (firstSelectedLayer is BasicRasterLayer || firstSelectedLayer is MosaicLayer))
{
// Gets the basic raster layer from the selected layer.
if (firstSelectedLayer is BasicRasterLayer)
{
basicRasterLayer = (BasicRasterLayer)firstSelectedLayer;
}
else if (firstSelectedLayer is MosaicLayer)
{
basicRasterLayer = ((MosaicLayer)firstSelectedLayer).GetImageLayer() as BasicRasterLayer;
}
// Initiates the combox box selected item.
SelectedIndex = -1;
// Updates the combo box with the corresponding colorizers for the selected layer.
await UpdateCombo(basicRasterLayer);
// Sets the combo box to display the first combo box item.
SelectedIndex = 0;
}
}
}
}