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()
}
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);
}