The Google Base data API C# Client Library offers a nice object oriented abstraction for accessing the Google Base data API. There are three sample applications written in C# that show how to use the client library. You can use these as a basis for writing your own application using the GoogleBase data API C# Client Library.
You may also find it useful to read the C# Developer's Guide, as well as the Google data client library ndoc reference.
The sample applications do not do any error-handling in order to simplify the code, but it is good practice to include it. Refer to the C# Developer's Guide for more information.
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