/// <summary>
/// Retrieves the pop-up info and determines whether there is more than one relationship for the layer. If there is more
/// than one, the relationships are displayed in a list for the user to choose from before proceeding.
/// </summary>
/// <param name="parameter">OnClickPopupInfo from clicked layer</param>
public void Execute(object parameter)
{
relationshipList.Clear();
OnClickPopupInfo popupInfo = parameter as OnClickPopupInfo;
popupWindow = popupInfo.Container as InfoWindow;
// Instantiate the View Model
if (vm == null)
{
vm = new QueryRelatedViewModel(relationshipList, MapApplication.Current.Map);
}
// Instantiate the Relationship View
if (relationshipView == null)
{
relationshipView = new RelationshipSelectionView();
}
// Instantiate the Keep on Map View
if (keepOnMapView == null)
{
keepOnMapView = new KeepOnMap();
}
// Instantiate the No results found View
if (noRecordsView == null)
{
noRecordsView = new NoRecordsFoundView();
}
// Set the variables on the ViewModel
vm.PopupInfo = popupInfo;
vm.KeepOnMapView = keepOnMapView;
vm.RelationshipView = relationshipView;
vm.NoRecordsFoundView = noRecordsView;
// Set the data context of the RelationshipView and the KeepOnMapView to the QueryRelatedViewModel
relationshipView.DataContext = vm;
keepOnMapView.DataContext = vm;
noRecordsView.DataContext = vm;
// Get the layer info from the pop-up to access the Relationships. Verify the layer is a FeatureLayer to proceed.
FeatureLayer relatesLayer;
Layer lyr = popupInfo.PopupItem.Layer;
if (lyr is FeatureLayer)
{
relatesLayer = lyr as FeatureLayer;
// Check the number of relationships for the layer
int relCount = relatesLayer.LayerInfo.Relationships.Count();
if (relCount > 1) // Layer has more than one relationship
{
foreach (Relationship rel in relatesLayer.LayerInfo.Relationships)
{
relationshipList.Add(rel);
}
numberOfRelates = string.Format(Strings.RelationshipsFound,
relatesLayer.LayerInfo.Relationships.Count().ToString());
vm.NumberOfRelationships = numberOfRelates;
// Add the available relationships view to the popupWindow.
Grid infoWindowGrid = Utils.FindChildOfType <Grid>(popupWindow, 3);
infoWindowGrid.Children.Add(relationshipView);
// Can now navigate back to attributes and close the popup from the relationship view,
// so notify about change in executable state
((DelegateCommand)vm.GoBack).RaiseCanExecuteChanged();
((DelegateCommand)vm.CloseRelationshipView).RaiseCanExecuteChanged();
}
else // Layer only has one relationship, so can use Relationship.First to retrieve the ID.
{
// Set the SelectedRelationship property on the ViewModel
vm.SelectedRelationship = relatesLayer.LayerInfo.Relationships.First();
// Call Execute method on the ViewModel
vm.QueryRelated.Execute(vm.SelectedRelationship);
}
}
else
{
return;
}
}
/// <summary>
/// Retrieves the pop-up info and determines whether there is more than one relationship for the layer. If there is more
/// than one, the relationships are displayed in a list for the user to choose from before proceeding.
/// </summary>
/// <param name="parameter">OnClickPopupInfo from clicked layer</param>
public void Execute(object parameter)
{
relationshipList.Clear();
OnClickPopupInfo popupInfo = parameter as OnClickPopupInfo;
popupWindow = popupInfo.Container as InfoWindow;
// Instantiate the View Model
if (vm == null)
vm = new QueryRelatedViewModel(relationshipList, MapApplication.Current.Map);
// Instantiate the Relationship View
if (relationshipView == null)
relationshipView = new RelationshipSelectionView();
// Instantiate the Keep on Map View
if (keepOnMapView == null)
keepOnMapView = new KeepOnMap();
// Instantiate the No results found View
if (noRecordsView == null)
noRecordsView = new NoRecordsFoundView();
// Set the variables on the ViewModel
vm.PopupInfo = popupInfo;
vm.KeepOnMapView = keepOnMapView;
vm.RelationshipView = relationshipView;
vm.NoRecordsFoundView = noRecordsView;
// Set the data context of the RelationshipView and the KeepOnMapView to the QueryRelatedViewModel
relationshipView.DataContext = vm;
keepOnMapView.DataContext = vm;
noRecordsView.DataContext = vm;
// Get the layer info from the pop-up to access the Relationships. Verify the layer is a FeatureLayer to proceed.
FeatureLayer relatesLayer;
Layer lyr = popupInfo.PopupItem.Layer;
if (lyr is FeatureLayer)
{
relatesLayer = lyr as FeatureLayer;
// Check the number of relationships for the layer
int relCount = relatesLayer.LayerInfo.Relationships.Count();
if (relCount > 1) // Layer has more than one relationship
{
foreach (Relationship rel in relatesLayer.LayerInfo.Relationships)
{
relationshipList.Add(rel);
}
numberOfRelates = string.Format(Strings.RelationshipsFound,
relatesLayer.LayerInfo.Relationships.Count().ToString());
vm.NumberOfRelationships = numberOfRelates;
// Add the available relationships view to the popupWindow.
Grid infoWindowGrid = Utils.FindChildOfType<Grid>(popupWindow, 3);
infoWindowGrid.Children.Add(relationshipView);
// Can now navigate back to attributes and close the popup from the relationship view,
// so notify about change in executable state
((DelegateCommand)vm.GoBack).RaiseCanExecuteChanged();
((DelegateCommand)vm.CloseRelationshipView).RaiseCanExecuteChanged();
}
else // Layer only has one relationship, so can use Relationship.First to retrieve the ID.
{
// Set the SelectedRelationship property on the ViewModel
vm.SelectedRelationship = relatesLayer.LayerInfo.Relationships.First();
// Call Execute method on the ViewModel
vm.QueryRelated.Execute(vm.SelectedRelationship);
}
}
else
{
return;
}
}