ExecuteReader requires an open and available Connection. The connection's current state is closed.

Question

Ok, I asked about this very error earlier this week and had some very helpful answers and without doubt things have drastically improved since I started following the suggestions.

However, now I am using the 'correct', best practice method to access the database I still get this error on some functions and I cannot get it to disappear for that block. Here is my code:

    Public Shared Function doesBasketExist(ByVal baskethash As String) As Boolean
    Dim _r As Boolean
    Using db As New SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings("pitstopConnectionString").ConnectionString)
        Using cmd As New SqlCommand("doGetBasketByHash", db)
            cmd.CommandType = CommandType.StoredProcedure
            cmd.Parameters.AddWithValue("@baskethash", baskethash)
            Using dr As SqlDataReader = cmd.ExecuteReader()
                If dr.HasRows() = True Then
                    _r = True
                Else
                    _r = False
                End If
                dr.Close()
            End Using
        End Using
    End Using
    Return _r
End Function

Now no matter what I do I get: ExecuteReader requires an open and available Connection. The connection's current state is closed. on this connection. I do have functions with objects called the same thing within this class (cmd, dr etc.) but Using closes up after itself doesn't it?

Suggestions welcome :)

Answer 1

I think you have forgotten to open the connection.

Open it before this line:

cmd.Parameters.AddWithValue("@baskethash", baskethash)

Using -

db.Open()

Answer 2

You actually forgot to Open connection:

        db.Open()
        Using dr As SqlDataReader = cmd.ExecuteReader()