private void Initialize()
{
isDynamicCodedValue = false;
isCodedValue = false;
isTypeIDField = false;
dynamicCodedValueSource = null;
codedValueSources = null;
TypeIDField = string.Empty;
if (string.IsNullOrEmpty(_field) || _layerInfo == null)
{
return;
}
TypeIDField = _layerInfo.TypeIdField;
Field field = _layerInfo.Fields.FirstOrDefault(x => x.Name == _field);
isDynamicCodedValue = FieldDomainUtils.IsDynamicDomain(field, LayerInfo);
isCodedValue = (field.Domain is CodedValueDomain);
isTypeIDField = (field.Name == TypeIDField);
if (isDynamicCodedValue)
{
dynamicCodedValueSource = FieldDomainUtils.BuildDynamicCodedValueSource(field, _layerInfo);
}
else if (isTypeIDField)
{
codedValueSources = FieldDomainUtils.BuildTypeIDCodedValueSource(field, _layerInfo);
}
else if (isCodedValue)
{
codedValueSources = FieldDomainUtils.BuildCodedValueSource(field);
}
}
/// <summary>
/// Sets the <see cref="FeatureDataGrid"/>'s ItemsSource after converting the source parameter to
/// the proper format.
/// </summary>
/// <param name="graphics">The graphics.</param>
private void SetItemsSource(IEnumerable <Graphic> graphics)
{
Dictionary <string, Field> fieldProps = null;
string uniqueID = null;
if (featureLayer == null)
{
featureLayer = GraphicsLayer as FeatureLayer;
}
if (featureLayer != null)
{
featureLayerInfo = featureLayer.LayerInfo;
SetSubmitButtonVisibility();
if (featureLayer.LayerInfo != null)
{
fieldInfo = FieldDomainUtils.SetFieldInfo(featureLayerInfo, out rangeDomainInfo, out fieldProps);
uniqueID = featureLayerInfo.ObjectIdField;
}
}
else
{
fieldInfo = null;
rangeDomainInfo = null;
}
// Indicate that the ItemsSource is about to be created by setting the isCreatingItemsSource flag.
// We have to do this for both Silverlight and WPF as PagedCollectionView and CollectionViewSource
// always add the first object to their selection:
isCreatingItemsSource = true;
var enumerableGraphics = graphics.ToDataSource(fieldInfo, rangeDomainInfo, fieldProps, uniqueID, FilterSource, out objectType) as IEnumerable <object>;
if (enumerableGraphics.Count <object>() == 0)
{
// use this when collection is empty, because it shows the column headers.
// PagedCollectionView does not create the headers for the collection it contains
// when the collection is empty.
ItemsSource = enumerableGraphics;
}
else
{
ItemsSource = new PagedCollectionView(enumerableGraphics);
(ItemsSource as PagedCollectionView).CollectionChanged += PagedCollectionView_CollectionChanged;
}
if (GraphicsLayer != null)
{
RestorePreviousSelection(GraphicsLayer.SelectedGraphics);
}
ShowNumberOfRecords();
}
/// <summary>
/// Raises the <see cref="E:System.Windows.Controls.DataGrid.CellEditEnded"/> event.
/// </summary>
/// <param name="e">The event data.</param>
protected override void OnCellEditEnded(DataGridCellEditEndedEventArgs e)
{
if (e.EditAction == DataGridEditAction.Commit)
{
Field field = e.Column.GetValue(FieldColumnProperty) as Field;
if (field != null && featureLayer != null && featureLayer.LayerInfo != null)
{
if (field.Domain is CodedValueDomain ||
featureLayer.LayerInfo.TypeIdField == field.Name ||
FieldDomainUtils.IsDynamicDomain(field, featureLayer.LayerInfo))
{
// When cell edit ends update the graphic with the cell change.
var xObject = e.Row.DataContext;
var graphic = DataSourceCreator.GetGraphicSibling(xObject);
xObject.RefreshGraphic(graphic, xObject.GetType());
}
}
}
base.OnCellEditEnded(e);
}
