ExecuteReader: Connection property has not been initialized

I have a VB.net code that has an error when I run to export sql table to comma delimited text file. The error says:
"ExecuteReader: Connection property has not been initialized".

Dim mycommand As New SqlCommand
Dim ConnSQL As String = "Data Source=Main;Initial Catalog=Pizza;Persist Security Info=True;User ID=sa;Password=hello"
Dim myconnection As SqlClient.SqlConnection = New SqlClient.SqlConnection(ConnSQL)


        Try

            myconnection.Open()

            Dim myCMD As SqlCommand = New SqlCommand("SELECT hdr,VendorID,InvoiceDate,InvoiceNo,StoreNo,ItemNo,AmountDue,Taxes,TotalAmount,SeqNo FROM [Main].[dbo].[tblUnion] order by invoiceNo, hdr desc", myconnection)

            Dim myReader As SqlDataReader = mycommand.ExecuteReader()

            Dim fileName As String = "\\network\Union.txt"




            Dim outputStream As StreamWriter = New StreamWriter(fileName)


            Do While myReader.Read


                Dim values(myReader.FieldCount - 1) As Object

                myReader.GetValues(values)

                
                Dim line As String = String.Join(",", values)
                
                outputStream.WriteLine(line)
            Loop
            myReader.Close()
            outputStream.Close()

            myConnection.Close()
        Catch ex As Exception
            MessageBox.Show(ex.Message, "Connection Failed!", MessageBoxButtons.AbortRetryIgnore)
        End Try

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What did I do wrong with this code?

Thank you.
Queennie LAsked:
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Kyle AbrahamsSenior .Net DeveloperCommented:
mycommand  vs myCMD

try this instead ;-)

 Dim myReader As SqlDataReader = myCMD.ExecuteReader()
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Queennie LAuthor Commented:
Thank you.
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