ArcGIS Engine中删除要素的几种方法总结

转自原文 ArcGIS Engine中删除要素的几种方法总结

/// <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);
}