Active Directory security groups Search application optimization

[TARUN00197]

I have a Web API method that returns the Active Directory security groups for the specific login user. The below code was working fine but it was taking so munch time nearly 45 sec to get the results

DirectoryEntry root = GetDirectoryEntry()
using (var groups = root.Children.Find("OU=Sample Security Groups"))
{
using (var directory = groups.Children.Find("OU=Permissions"))
{
using (var searcher = new DirectorySearcher(directory))
{
searcher.Filter = `filter condition`
var results = searcher.FindAll();
foreach (SearchResult result in results)
{
if (result != null)
{
using (DirectoryEntry group = result.GetDirectoryEntry())
{
items.Add((string)group.Properties["sAMAccountName"].Value);
}
}
}
}
}
}
Can anyone help to optimize the code using Parallel.ForEach or threading etc..



TARUN

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