高效的Insert方法

Insert Feature是我们在开发过程中最容易遇到的问题，如果Insert的feature个数有限，那么你也许不关注Insert的速度问题。但是数据量比较大》500个的时候，你就会发现如果使用 IFeatureClass. CreateFeature的速度基本是无法忍受的。


其实ArcObjects中提供了一个接口，可以满足快速批量插入的要求。他就是：IFeatureBuffer
使用方法如下：


Set pFeatureBuffer = pFC.CreateFeatureBuffer
Set pFeatureCursor = pFC.Insert(True)
Set pFeature = pFeatureBuffer
Set pPolyline = New Polyline

'Create 100 features using FeatureBuffer and insert into a feature cursor
For i = 0 To 99

'Set the feature's shape TODO
Set pFeature.Shape = pPolyline

'Insert the feature into the feature cursor
q = pFeatureCursor.InsertFeature(pFeatureBuffer)
Next i

'Flush the feature cursor to the database
pFeatureCursor.Flush