I'm sorry, I know this is a pretty simple question but am having trouble getting this to work. Basically, I have 2 linear featureclasses and they both have the same fields and spatial reference. FC1 has 675 records and FC2 only has 505 records. So how can I check what Prop_ID(s) are missing from FC2? I have some code that will copy the missing record from FC1 to FC2 but must first determine the missing Prop_ID.
many thanks
Best Answer
Since you tagged this question with arcobjects and c#, and since not all geodatabases support the SQL IN with a subquery, the following untested code shows how you could do this with System.Collections.Hashtable.