cursor slow

MKa

I want to get all features from a feature class and add them to a list.  And I have noticed that the iteration using the cursor is just so slow.  Does anyone have a better way of getting all values back and populating a list with them.  I want the list of all features, but the loop is just so slow.  It is taking like 8 seconds to populate the list with 300 features

List<IFeature> featureList = new List<IFeature>();

//Run the filter on the Feature class and get the intersection

IFeatureCursor fc = featureClass.Search(null, false);

IFeature feature;

//SLOW PART STARTS HERE

while ((feature = fc.NextFeature()) != null)

{

    featureList.Add(feature);

}

MKa

I am using a file geodatabase located on my local machines hard drive. 

I have also tried to narrow down the columns retrieved, to only the ones I want to retrieve, but it also seems to be slower than I expected.  Is there any way to just get all values?

               string subfields = "aaaaa, bbbbb, ccccc, ddddd, eeeee";

                IQueryFilter queryFilter = new QueryFilterClass();

                queryFilter.WhereClause = null;

                queryFilter.SubFields = subfields;

              IFeatureCursor fc = featureClass.Search(queryFilter, false);

              IFeature feature;

               

               List<AllLocalInfoItem> AllLocalInfoItemList = new List<AllLocalInfoItem>();

               while ((feature = fc.NextFeature()) != null)

                {

                        AllLocalInfoItem ali = new AllLocalInfoItem();

                        ali.aaaaa= xxxxxDbReadWrite.getTableValue(feature, "aaaaa");

                        ali.bbbbb= xxxxxDbReadWrite.getTableValue(feature, "bbbbb");

                        ali.ccccc= xxxxxDbReadWrite.getTableValue(feature, "ccccc");

                        ali.ddddd= xxxxxDbReadWrite.getTableValue(feature, "ddddd");

                        ali.eeeee= xxxxxDbReadWrite.getTableValue(feature, "eeeee");

                       AllLocalInfoItemList.Add(ali);

                }