Which two actions should you perform?

You are developing an application that includes the following code segment. (Line numbers are included for reference only.)

The GetCustomers() method must meet the following requirements:

• Connect to a Microsoft SQL Server database.

• Populate Customer objects with data from the database.

• Return an IEnumerable<Customer> collection that contains the populated Customer objects.

You need to meet the requirements.

Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)
A . Insert the following code segment at line 17: while (sqlDataReader.GetValues())
B . Insert the following code segment at line 14: sqlConnection.Open();
C . Insert the following code segment at line 14: sqlConnection.BeginTransaction();
D . Insert the following code segment at line 17: while (sqlDataReader.Read())
E . Insert the following code segment at line 17: while (sqlDataReader.NextResult())

View Answer

Answer: B, D

Explanation:

B: SqlConnection.Open – Opens a database connection with the property settings specified by the

ConnectionString.

Reference: http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlconnection.open.aspx

D: SqlDataReader.Read – Advances the SqlDataReader to the next record.

Reference: http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqldatareader.read.aspx

Not E: reader.NextResult is wrong because that is used when reader has more than one result set (SP or inline SQL has more than one Select).