The ConnectionString property has not been initialized.

[FastEddie]

I am trying to use a connection string from web.config file for the first time. Here is my code.

Try
            Dim cmd As String = _
                ("SELECT [Name], BirthDate, StartDate From " & _
                "Employees WHERE PayGroup='20' AND Status='A'")
 
            Dim conn As String = _
                System.Configuration. _
                ConfigurationManager. _
                AppSettings("myConString")
 
            Dim myConn As New SqlConnection(conn)
            Dim myCmd As New SqlDataAdapter(cmd, myConn)
            Dim ds As New DataSet
            myCmd.Fill(ds)
            gvEmp.DataSource = ds
            gvEmp.DataBind()
 
        Catch ex As Exception
            Response.Write(ex.Message & "<br>")
        Finally
 
        End Try

I am getting The ConnectionString property has not been initialized. What am I doing wrong?