ArcGIS Engine中删除要素的几种方法总结

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        /// <summary>        /// 通过IFeature.Delete方法删除要素        /// </summary>        /// <param name="pFeatureclass">要素类</param>        /// <param name="strWhereClause">查询条件</param>        public static void DeleteFeatureByIFeature(IFeatureClass pFeatureclass, string strWhereClause)        {            IQueryFilter pQueryFilter = new QueryFilterClass();            pQueryFilter.WhereClause = strWhereClause;            IFeatureCursor pFeatureCursor = pFeatureclass.Search(pQueryFilter, false);            IFeature pFeature = pFeatureCursor.NextFeature();            while (pFeature != null)            {                pFeature.Delete();                pFeature = pFeatureCursor.NextFeature();            }        }

       /// <summary>        /// 通过IFeatureCursor.DeleteFeature方法删除要素        /// </summary>        /// <param name="pFeatureclass">要素类</param>        /// <param name="strWhereClause">查询条件</param>        public static void DeleteFeatureByIFeatureCursor(IFeatureClass pFeatureclass, string strWhereClause)        {            IQueryFilter pQueryFilter = new QueryFilterClass();            pQueryFilter.WhereClause = strWhereClause;            IFeatureCursor pFeatureCursor = pFeatureclass.Update(pQueryFilter, false);            IFeature pFeature = pFeatureCursor.NextFeature();            while (pFeature != null)            {                pFeatureCursor.DeleteFeature();                pFeature = pFeatureCursor.NextFeature();            }        }

        /// <summary>        /// 通过ITable.DeleteSearchedRows方法删除要素        /// </summary>        /// <param name="pFeatureclass">要素类</param>        /// <param name="strWhereClause">查询条件</param>        public static void DeleteFeatureByITable(IFeatureClass pFeatureclass, string strWhereClause)        {            IQueryFilter pQueryFilter = new QueryFilterClass();            pQueryFilter.WhereClause = strWhereClause;            ITable pTable = pFeatureclass as ITable;            pTable.DeleteSearchedRows(pQueryFilter);        }

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