从GDB中通过名字找到网络分析数据集

private INetworkDataset OpenNetworkDataset(IFeatureWorkspace pFeatureWorkspace, string featureDatasetName, string sNDSName)
{

try
{

IFeatureDatasetExtensionContainer pFeatureDatasetExtensionContainer = pFeatureWorkspace.OpenFeatureDataset(featureDatasetName) as IFeatureDatasetExtensionContainer;

IDatasetContainer2 pDatasetContainer2 = pFeatureDatasetExtensionContainer.FindExtension(esriDatasetType.esriDTNetworkDataset) as IDatasetContainer2;

INetworkDataset pNetworkDataset = pDatasetContainer2.get_DatasetByName(esriDatasetType.esriDTAny, sNDSName) as INetworkDataset;

return pNetworkDataset;

}
catch (Exception ex)
{

return null;
}
}