Howto access data within .NET SQL function?

I'm trying to learn Visual Studio SQL Projects and have managed to create a project, connect to a database, create a UDF and the associated test script.  My question has to do with actually accessing the data.  How?

What's the best way to access data?  Currently I'm creating a SQLConnection, but this requires a connection string that only the calling application knows.  Since the project is built and deployed against a database using Windows authentication why do I need a connection string in the first place?  What if we deploy the assembly to another database, I don't want to hardcode the connection string.  There should be a default connect using the credentials given at deployment time setting shouldn't there?

Additionally I'm going to need to know how to create a temp table and cursor to iterate, or in C# iterate through a recordset, is there anywhere out there where sample C# code in SQL Projects has been collected?  

This seems like it's way harder than it should be.
StuTheDogAsked:
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RichardCorrieConnect With a Mentor Commented:
the .Net forum would probably be a better place to ask this type of question;but here goes:

1) Connection string: you will *always* need to tell your application which, where and how to connect to a database hence the connection string; u can use the ConnectionStringBuilder class (part of System.data) to set/get the correct properties or u can set the connection string as a Project setting (click the setting tab whn looking at the project properties) one of the "types" of setting is "connectionString".

part of the connection string is the security method (Windows or SQL) used to connect to the db

the settings are "deployed" in App.config file; you can ammend that file prior to/after deployment to change any value.

2) to iterate a recordset use a datareader object.

I would reccommend that u get a good book on .net data access to really get to grips with it.

/Richard
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