Correlation in .NET protocol

[Dipti Gupta]

How will i corelate a value in .net protocol.
When i execute my loadrunner recorded script ,at one point one SQL stored procedure is executed and as a result of that one id is generated in the database.I need to get that id from the database and use that vale in further part of the code.
Please let me know how to use correlation for this.

lr.save_string("{variable Name}", .Rows[{1}]["{2}"].ToString());
Please explain about above function[what is .Rows[1][2].ToString()].