[Vb.net] Crystal report + requête SQL

Dim MyConnexion As SqlConnection = New SqlConnection("Data Source=GUIDARA-PC\SQLEXPRESS;" & _
                               "Integrated Security=SSPI;Initial Catalog=test")
Dim Mycommand As SqlCommand = MyConnexion.CreateCommand()

Mycommand.CommandText = "SELECT nom_test FROM test_1"
MyConnexion.Open()
Dim myReader As SqlDataReader = Mycommand.ExecuteReader()

myReader.Read()
myReader.GetValue(0)
...
...

myReader.Close()
MyConnexion.Close()