ArcGIS Engine检索要素集、要素类和要素

转自原文 ArcGIS Engine检索要素集、要素类和要素

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1. /// <summary>
2. /// 获取所有要素集
3. /// </summary>
4. /// <param name="workspace">工作空间对象</param>
5. /// <returns>要素集列表</returns>
6. public static List<IFeatureDataset> GetAllFeatureClass(IWorkspace workspace)
7. {
8. IEnumDataset dataset = workspace.get_Datasets(esriDatasetType.esriDTFeatureDataset);
9. IFeatureDataset featureDataset = dataset.Next() as IFeatureDataset;
10. List<IFeatureDataset> featureDatasetList = new List<IFeatureDataset>();
11. while (featureDataset != null)
12. {
13. featureDatasetList.Add(featureDataset);
14. featureDataset = dataset.Next() as IFeatureDataset;
15. }
16. return featureDatasetList;
17. }

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1. /// <summary>
2. /// 获取所有要素类
3. /// </summary>
4. /// <param name="featureDataset">要素集</param>
5. /// <returns>要素类列表</returns>
6. public static List<IFeatureClass> GetAllFeatureClass(IFeatureDataset featureDataset)
7. {
8. IFeatureClassContainer featureClassContainer = (IFeatureClassContainer)featureDataset;
9. IEnumFeatureClass enumFeatureClass = featureClassContainer.Classes;
10. IFeatureClass featureClass = enumFeatureClass.Next();
11. List<IFeatureClass> featureClassList = new List<IFeatureClass>();
12. while (featureClass != null)
13. {
14. featureClassList.Add(featureClass);
15. featureClass = enumFeatureClass.Next();
16. }
17. return featureClassList;
18. }

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1. /// <summary>
2. /// 获取所有要素
3. /// </summary>
4. /// <param name="featureClass">要素类</param>
5. /// <returns>要素列表</returns>
6. public static List<IFeature> GetAllFeatureClass(IFeatureClass featureClass)
7. {
8. List<IFeature> featureList = new List<IFeature>();
9. IFeatureCursor featureCursor = featureClass.Search(null, false);
10. IFeature feature = featureCursor.NextFeature();
11. while (feature != null)
12. {
13. featureList.Add(feature);
14. feature = featureCursor.NextFeature();
15. }
16. return featureList;
17. }