What influences the return value of SqlDataReader.Read()?

SqlDataReader.Read() is a method which returns a bool but adva开发者_C百科nced to the next record in a recordset.

What factors influence whether true or false is returned?

Thanks

From the help of SqlDataReader.Read:

returns true if there are more rows; otherwise false.

From the documentation:

true if there are more rows; otherwise false.