How to get only specific field from the list
You can select the value you want first, like this:
filteredLessons.Select(l => l.lessonId).ToList();
And you'll get a list of ID's
If you want to get the the specific row value from list using linq use the following code:
var name = from r in objClientList where r.ClientCode == Convert.ToInt32(drpClientsInternal.Items[i].Value) select r.IsInternalClient;foreach (bool c in name){ if (c) { ClientNameInternal = ClientNameInternal + drpClientsInternal.Items[i].Text +", "; drpClientsInternal.Items[i].Selected = true; }}