/// <summary>
/// Gets the spatial reference.
/// </summary>
/// <param name="source">The source.</param>
/// <returns>Returns a <see cref="ISpatialReference" /> representing the spatial reference of the feature class.</returns>
public static ISpatialReference GetSpatialReference(this IFeatureClass source)
{
var geometryDef = source.GetGeometryDef();
return(geometryDef.SpatialReference);
}
