public void SettingOidFilterAllowsOnlyFeaturesContainingFilteredOidsInView()
{
FeatureProvider data = DataSourceHelper.CreateFeatureDatasource(_factories.GeoFactory);
FeatureDataTable <Guid> table = new FeatureDataTable <Guid>("Oid", _factories.GeoFactory);
FeatureQueryExpression query = FeatureQueryExpression.Intersects(data.GetExtents());
IFeatureDataReader reader = data.ExecuteFeatureQuery(query);
table.Load(reader, LoadOption.OverwriteChanges, null);
Guid[] ids = new Guid[3];
ids[0] = (table.Rows[1] as FeatureDataRow <Guid>).Id;
ids[1] = (table.Rows[4] as FeatureDataRow <Guid>).Id;
ids[2] = (table.Rows[6] as FeatureDataRow <Guid>).Id;
FeatureDataView view = new FeatureDataView(table);
view.OidFilter = new OidCollectionExpression(ids);
Assert.Equal(3, view.Count);
Assert.True(view.Find(ids[0]) > -1);
Assert.True(view.Find(ids[1]) > -1);
Assert.True(view.Find(ids[2]) > -1);
Assert.Equal(-1, view.Find((table.Rows[0] as FeatureDataRow <Guid>).Id));
Assert.Equal(-1, view.Find((table.Rows[2] as FeatureDataRow <Guid>).Id));
Assert.Equal(-1, view.Find((table.Rows[3] as FeatureDataRow <Guid>).Id));
Assert.Equal(-1, view.Find((table.Rows[5] as FeatureDataRow <Guid>).Id));
}
private static IEnumerable <Int32> getSelectedFeatureIndexesFromHighlighedFeatures(
FeatureDataView selectedFeatures,
FeatureDataView highlightedFeatures)
{
foreach (FeatureDataRow feature in highlightedFeatures)
{
yield return(selectedFeatures.Find(feature));
}
}
