identifyTask w/fieldsToDisplay not showing multi features

JohnWall

I have started with the identify sample code and modified it to show specific fields for a FeatureLayer. However, now I am having issues getting features, which are close to one another or on top of one another, to be returned by the identifyTask and selectable within the Grid.

I believe it has something to do with the

void cb_SelectionChanged

code referencing .Data instead of something else, but I am not sure.

Here is a XAML snippet:

<ComboBox x:Name="IdentifyComboBox" SelectionChanged="cb_SelectionChanged"
                         Margin="5,1,5,5" Grid.Row="0">
                    </ComboBox>

Here is the C# snippet:

public void ShowFeatures(List<IdentifyResult> results)
        {
            _dataItems = new List<DataItem>();

            if (results != null && results.Count > 0)
            {
                IdentifyComboBox.Items.Clear();
                foreach (IdentifyResult result in results)
                {
                    Graphic feature = result.Feature;
                    string title = result.Value.ToString() + " (" + result.LayerName + ")";
                    _dataItems.Add(new DataItem()
                    {
                        Title = title,
                        Data = feature.Attributes
                    });
                    var fieldsToDisplay = new List<string>() { "OBJECTID", "Projekt", "Laufzeit", "Ansprechpa" };
                    var attributesToDisplay = new Dictionary<string, object>();
                    foreach (var item in feature.Attributes)
                        if(fieldsToDisplay.Contains(item.Key))
                            attributesToDisplay[item.Key]= item.Value;
                    IdentifyDetailsDataGrid.ItemsSource = attributesToDisplay;
                }
                IdentifyComboBox.SelectedIndex = 0;
            }
        }

        void cb_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            int index = IdentifyComboBox.SelectedIndex;
            if (index > -1)
                IdentifyDetailsDataGrid.ItemsSource = _dataItems[index].Data;
        }

DominiqueBroux

You can use the Data member to store the attributesToDisplay.

Something like:

 
                var fieldsToDisplay = new List<string>() { "OBJECTID", "Projekt", "Laufzeit", "Ansprechpa" };
                foreach (IdentifyResult result in results)
                {
                    Graphic feature = result.Feature;
                    string title = result.Value.ToString() + " (" + result.LayerName + ")";
                    var attributesToDisplay = new Dictionary<string, object>();
                    foreach (var item in feature.Attributes)
                      if(fieldsToDisplay.Contains(item.Key))
                        attributesToDisplay[item.Key]= item.Value;

                    _dataItems.Add(new DataItem()
                    {
                        Title = title,
                        Data = attributesToDisplay 
                    });
                }