Web.config File And Connection string

Question

Hi,
    Is it possible to connection string declared in web config file and use in subpages of Master Page once it defined  in master page....because I dont want to declare it again and again in sub pages because that again the same thing like declaring connection string locally like below on every subpage of Master Page

Public connStr As String = ConfigurationManager.ConnectionStrings("myConnectionString").ConnectionString

    Public cn As New SqlConnection(connStr)

    Public cmd As New SqlCommand

...plz help..



I Hope i am clear with my query