批量插入，拷贝，删除IFeatureClass中的IFeature

1、插入 

/// <summary>

///向featureclass中批量插入features ,批量插入features，用buffer的方法，要比循环一个个Store的方法快 

///</summary>

 /// <param name="pFeatureClass">操作数据所在的IFeatureClass</param> 

private void InsertFeatures( IFeatureClass pFeatureClass , List< IGeometry> pGeos )

 { 
IFeatureBuffer pFeatBuf = pFeatureClass.CreateFeatureBuffer(); 

IFeature pFeat = pFeatBuf; 

IFeatureCursor pFeatCur= pFeatureClass.Insert(true); 

for(int i = 0 ;i< pGeos.Count ;i++) 

{ 

  pFeat.Shape = pGeos(i); 

  pFeatCur.InsertFeature(pFeatBuf); 

  //避免一次flush，导致速度过慢

  if (i Mod 100 == 0 )

  { 

    pFeatCur.Flush() 

  } 

} 

2、拷贝

 /// <summary> 

///复制一个IFeatureClass中的要素到另外一个当中 

 /// </summary> 

  /// <param name="pFromFeatureClass">源数据所在的IFeatureClass</param>
       

 /// <param name="pToFeatureClass">目标数据所在的IFeatureClass</param>

 private void CopyFeatureClass(IFeatureClass pFromFeatureClass, IFeatureClass pToFeatureClass)

 { 

try { 

     IFeatureCursor pFromFeatureCursor = pFromFeatureClass.Search(null, false); 

     IFeatureCursor pToFeatureCursor = pToFeatureClass.Insert(true); 

     IFeatureBuffer pFeatureBuffer = pToFeatureClass.CreateFeatureBuffer(); 

     IFeature pFromFeature = pFromFeatureCursor.NextFeature();

     while (pFromFeature != null)

    { 

       int IndexShape = pFeatureBuffer.Fields.FindField("Shape"); 

       pFeatureBuffer.set_Value(IndexShape, pFromFeature); 

       pFeatureBuffer.Shape = pFromFeature.Shape; 

       pToFeatureCursor.InsertFeature(pFeatureBuffer); 

       pFromFeature = pFromFeatureCursor.NextFeature(); 

       pFeatureBuffer = pToFeatureClass.CreateFeatureBuffer(); 

    } 

       pToFeatureCursor.Flush(); 

} 

catch (Exception ex) 

{

 throw ex; 

} 

} 

3、删除 

///<summary>删除某featurelayer中所有feature

 /// 该方法可以给一个queryfilter，进行删除符合条件的Ifeatures///</summary>

/// <param name="pLayer ">:操作的图层</param>


 Private void DeleteAllFeatures(IFeatureLayer pLayer ) 

{ 

ITable pTable = pLayer.FeatureClass; 

pTable.DeleteSearchedRows(null); 

}