一、  几种删除方法代码

1.  查询结果中删除

  private void Delete1(IFeatureClass PFeatureclass)

        {

            IQueryFilter pQueryFilter = new QueryFilterClass();

            pQueryFilter.WhereClause = "objectID<=" + DeleteNum;

            IFeatureCursor pFeatureCursor = PFeatureclass.Search(pQueryFilter, false);            IFeature pFeature = pFeatureCursor.NextFeature();

            while (pFeature != null)

            {

                pFeature.Delete();

                pFeature = pFeatureCursor.NextFeature();

            }

            System.Runtime.InteropServices.Marshal.ReleaseComObject(pQueryFilter);

        }

2.  更新游标删除

private void Delete2(IFeatureClass PFeatureclass)

        {

            IQueryFilter pQueryFilter = new QueryFilterClass();

            pQueryFilter.WhereClause = "objectID<=" + DeleteNum;

            IFeatureCursor pFeatureCursor = PFeatureclass.Update(pQueryFilter, false);

            IFeature pFeature = pFeatureCursor.NextFeature();

            while (pFeature != null)