private static Collection <int> GetAvailableFeatureIdsInternal(ShapeFileFeatureLayer featureLayer)
{
Collection <int> results = new Collection <int>();
string shxPathFileName = Path.ChangeExtension(featureLayer.ShapePathFilename, ".shx");
ShapeFileIndex shx = null;
try
{
shx = new ShapeFileIndex(shxPathFileName);
shx.Open();
var count = shx.GetRecordCount();
for (int i = 1; i <= count; i++)
{
var contentLength = shx.GetRecordContentLength(i);
if (contentLength != 0)
{
results.Add(i);
}
}
}
finally
{
if (shx != null)
{
shx.Close();
}
}
return(results);
}
private static Dictionary <int, int> GetRecordContentLengthInternal(ShapeFileFeatureLayer featureLayer, IEnumerable <int> ids)
{
Dictionary <int, int> results = new Dictionary <int, int>();
string shxPathFileName = Path.ChangeExtension(featureLayer.ShapePathFilename, ".shx");
ShapeFileIndex shx = null;
try
{
shx = new ShapeFileIndex(shxPathFileName);
shx.Open();
foreach (var id in ids)
{
int contentLength = shx.GetRecordContentLength(id);
results.Add(id, contentLength);
}
}
finally
{
if (shx != null)
{
shx.Close();
}
}
return(results);
}
