public static List<Feature> GetFeatures(HtzMgHelper helper, string filter, string layerName)
{
List<Feature> result = new List<Feature>();
MgLayer layer = helper.Map.GetLayers().GetItem(layerName) as MgLayer;
Feature prototype = new Feature(helper, layerName, "");
MgFeatureQueryOptions opt = new MgFeatureQueryOptions();
if (!string.IsNullOrEmpty(filter))
{
opt.SetFilter(filter);
}
MgFeatureReader reader = helper.FeatureService.SelectFeatures(new MgResourceIdentifier(layer.FeatureSourceId), layer.FeatureClassName, opt);
while (reader.ReadNext())
{
Feature f = prototype.Clone() as Feature;
f.FillValues(reader);
result.Add(f);
}
return result;
}
public static List<Feature> GetFeatures(HtzMgHelper helper, MgSelection selection, string layerName)
{
MgFeatureReader reader;
List<Feature> result = new List<Feature>();
MgLayer layer = (MgLayer)helper.Map.GetLayers().GetItem(layerName);
if ((selection != null) && (selection.GetLayers() != null))
{
string filter = selection.GenerateFilter(layer, layer.FeatureClassName);
MgFeatureQueryOptions opt = new MgFeatureQueryOptions();
opt.SetFilter(filter);
reader = helper.FeatureService.SelectFeatures(new MgResourceIdentifier(layer.FeatureSourceId), layer.FeatureClassName, opt);
}
else
{
reader = helper.FeatureService.SelectFeatures(new MgResourceIdentifier(layer.FeatureSourceId), layer.FeatureClassName, null);
}
if (reader.ReadNext())
{
Feature prototype = new Feature(helper, layerName, "");
Feature f1 = prototype.Clone() as Feature;
f1.FillValues(reader);
result.Add(f1);
while (reader.ReadNext())
{
Feature f = prototype.Clone() as Feature;
f.FillValues(reader);
result.Add(f);
}
}
return result;
}