Arcengine,C#获得FeatureClass的坐标系ISpatialReference以及所在数据集名称

/// <summary>

/// 获得坐标系统

/// </summary>

/// <returns></returns>

static ISpatialReference getSpatialReference(IFeatureClass pFeatureClass)

   7: {

as IGeoDataset;

return pGeoDataset.SpatialReference;

  10: }