How to join two shapefiles and create a new shapefile using ArcObjects?

Question

Newbie in ArcObjects programming. Using C#. Developing a desktop application.

I have two shapefiles. One is a point shapefile Called Addresses and another Polygon shapefile which is called Area. The Address shapefile has an attribute called Address_Number while the Area shapefile has a attribute called Area_Number.

I need to select only the features that match "Address_Number" (from Addresses) to "Area_Number" (from Area) and then create a new shapefile.

How can I do this?

Any help with some code example is greatly appreciated.

Answer 1

join the dbf from the area shape with a many to one, to the addresses shape. select the oid of area not null and export.

Answer 2

EDIT: The text below assumes you want to perform an actual join, i.e. create a table containing fields from both source tables.

Since the two tables are in different data sources, you cannot perform a database join to do this. If you do not want to write code to do the join manually, you will need to use IRelQueryTable along with an MemoryRelationshipClass. Both objects can be instantiated using their factories - IMemoryRelationshipClassFactory and IRelQueryTableFactory. This will give a table which you can export anywhere you like.