Get Previous Feature Using FeatureCursor

Corbinde_Bruin

Hello all,

What is the best practice for stepping backwards in a FeatureCursor. I use the NextFeature() method to loop through a FeatureCursor and make edits, but now I need tot be able to scroll back and forth between features in a FeatureCursor.

If there is another way, I do not need to use the FeatureCursor. I just don't know of another way.

I looked into using an enumerator, but that looks like it has the same exact problem. I see a Next() method and a Reset() method, but no Previous() method.

I feel I am missing something basic here. Right now I am requerying the database every time I want to access a 'previous' feature. I'd love to see some ArcObjects best practices here. I've searched the documentation and forums, but I was unable to find anything related.

Thank you,
Corbin de Bruin

kenbuja

You could put the features into a collection (an array, dictionary, hashtable, etc). After running the feature cursor once to build the collection, you can access the features as you need.

One of my projects involved doing a series of calculations on the attributes of a group of features. Many of the calculations used values that were the result of previous calculations. The person who originally wrote the code used a separate cursor for each individual calculation, which took forever. I was able to rewrite the code where all of the attributes for the features where written into an array using a featurecursor. All the calculations where then done by looping through this array, which speed things up immensely.