c# AE 通过名称删除要素类

转载：http://blog.csdn.net/lysc_forever/article/details/7790219#

//注: 在程序运行中往往有些要素类因为出错而无法删除，这时IDataset.Delete这个方法则无法成功，可以用轻量级的名称对象来完成这个任务。以下为C#+AE10源码。

//删除要素类
        public static bool DeleteFeatureDataset(IWorkspace ws, string name)
        {
            if (ws == null || string.IsNullOrEmpty(name))
            {
                ErrMsg = "工作空间或要素类名称不能为空!";
                return false;
            }
            IFeatureDataset pFeaDataSet;
            IEnumDatasetName pEnumDatasetName;
            IFeatureWorkspace pFeaWorkspace;
            IDatasetName pDatasetName;
            try
            {
                pFeaWorkspace = ws as IFeatureWorkspace;
                pEnumDatasetName = ws.get_DatasetNames(esriDatasetType.esriDTFeatureClass ^ esriDatasetType.esriDTFeatureDataset);
                pEnumDatasetName.Reset();
                pDatasetName = pEnumDatasetName.Next();
                while (pDatasetName != null)
                {
                    if (pDatasetName.Type == esriDatasetType.esriDTFeatureDataset)
                    {
                        //如果是要素集，则对要素集内的要素类进行查找
                        IEnumDatasetName pEnumFcName = (pDatasetName as IFeatureDatasetName).FeatureClassNames;
                        IDatasetName pFcName = pEnumFcName.Next();
                        while (pFcName != null)
                        {
                            if (pFcName.Name.IndexOf(name) >= 0)
                            {
                                DeleteByName(pFeaWorkspace, pFcName);
                                return true;
                            }
                            pFcName = pEnumFcName.Next();
                        }
                    }
                    else
                    {
                        if (pDatasetName.Name.IndexOf(name) >= 0)
                        {
                            DeleteByName(pFeaWorkspace, pDatasetName);
                            return true;
                        }
                    }
                    pDatasetName = pEnumDatasetName.Next();
                }
                return false;
            }
            catch (Exception ex)
            {
                ErrMsg = ex.Message;
                return false;
            }
        }
        //删除名称对象
        public static void DeleteByName(IFeatureWorkspace pFeaWorkspace, IDatasetName pDatasetName)
        {
            IFeatureWorkspaceManage pWorkspaceManager = pFeaWorkspace as IFeatureWorkspaceManage;
            pWorkspaceManager.DeleteByName(pDatasetName);
        }