Just An Explanation Of What This Means Please

Hi,

I have a project that has been given to me and need help please. The complete class is as follows

Public Class CarAccessData

    Public Function Getcarinfo() As List(Of CarInfo)

        Dim AllCarInfo As New List(Of CarInfo)

        Dim SQL As String
        SQL = "SELECT [SKU], [CarMake], [CarModel], [Carprice]"

        Dim MyConnection As SqlConnection
        MyConnection = New SqlConnection(ConfigurationManager.ConnectionStrings("AntConnectionString1").ConnectionString)

        Dim aCmd As SqlCommand
        aCmd = MyConnection.CreateCommand

        aCmd.CommandText = SQL
        aCmd.CommandType = CommandType.Text


        Dim aDataReader As SqlDataReader

        Try

            MyConnection.Open()

            aDataReader = aCmd.ExecuteReader

            While aDataReader.Read()

                AllCarInfo.Add(New CarInfo(aDataReader))
            End While

        Catch ex As Exception
            Throw ex
        Finally

            aDataReader.Close()

            MyConnection.Close()
        End Try

        Return AllCarInfo
    End Function

End Class

 


The bit I dont quite understand is the following snippet from above

 

 

Dim aCmd As SqlCommand
        aCmd = MyConnection.CreateCommand

        aCmd.CommandText = SQL
        aCmd.CommandType = CommandType.Text


        Dim aDataReader As SqlDataReader

        Try

            MyConnection.Open()

            aDataReader = aCmd.ExecuteReader

            While aDataReader.Read()

                AllCarInfo.Add(New CarInfo(aDataReader))
            End While

        Catch ex As Exception
            Throw ex
        Finally

 


Can anyone explain this in real ABC style step by step please, just so I can start to understand this, ( I am quite new to this)

many thanks,

Anteater