public void Add(IGISFeature feature)
{
if (feature == null)
{
throw new ArgumentNullException("feature", "A valid feature is required to be added.");
}
if (_features == null)
{
throw new NullReferenceException("Cannot add feature to the InMemoryLayer. The internal list reference is NULL.");
}
if (FindByKeyValue(_features, feature.Attributes.GetValue(KeyFieldName)) != null)
{
throw new ArgumentException("Cannot add feature. A feature with the same key already exists.");
}
InMemoryGISFeature newFeature = CreateFeature();
_features.Add(newFeature);
newFeature.Shape = feature.Shape;
foreach (string key in feature.Attributes.GetKeys())
{
newFeature.Attributes.SetValue(key, feature.Attributes.GetValue(key));
}
}
public bool MoveNext()
{
if (++_index >= _features.Count)
{
return(false);
}
else
{
_current = _features[_index];
return(true);
}
}
public void Delete(IGISFeature feature)
{
if (feature == null)
{
throw new ArgumentNullException("feature", "A valid feature is required to be added.");
}
if (_features == null)
{
throw new NullReferenceException("Cannot delete feature from the InMemoryLayer. The internal list reference is NULL.");
}
InMemoryGISFeature mc = FindByKeyValue(_features, feature.Attributes.GetValue(KeyFieldName));
if (mc != null)
{
_features.Remove(mc);
}
}
public bool MoveNext()
{
if (++_index >= _features.Count)
{
return false;
}
else
{
_current = _features[_index];
return true;
}
}
