Usage of DGV

This is the first time i am using an DGV and also an DB. I have written some code , but i am not sure whether it is the correct way of doing, plz help.

Basically i want to load the data from the db and display in the dgv. I only want to display the data , manipulation of this data is done using other form.

I am setting the columns manually because i want to use the same dgv for multiple purpose

vb Code:

Private Sub LoadDivisions()
        Using conn As New SqlConnection(My.Settings.IDSConnectionString)
            Using cmd As New SqlCommand("select * from divisions order by divname", conn)
                If Not conn.State = ConnectionState.Open Then conn.Open()
 
                Dim reader As SqlDataReader = cmd.ExecuteReader(CommandBehavior.CloseConnection)
                Dim table As New DataTable
                table.Load(reader)
 
                With Me.DataGridView1
                    .Rows.Clear()
                    .Columns.Clear()
                    .ColumnCount = 0
 
                    .Columns.Add("Sno", "S.No.")
                    .Columns.Add("DivId", "DivId")
                    .Columns.Add("DivName", "Division Name")
                    .Columns.Add("NOP", "No. of Products")
                    .Columns.Add("Speciality", "Speciality")
                    .Columns.Add("Descp", "Description")
 
                    .Columns(0).Width = 50
                    .Columns(1).Visible = False
                    .Columns(2).Width = 225
                    .Columns(3).Width = 115
                    .Columns(4).Width = 150
                    .Columns(5).Width = 310
 
                    For Each r As DataRow In table.Rows
                        .Rows.Add(.Rows.Count + 1, r(0), r(1), "", r(2), r(3))
 
                    Next
                End With
 
           End Using
        End Using
    End Sub

There are a few different ways you can use the DGV - your way is one of them but I think the most common method is to use Data Binding. I've never really got into that myself though and always done something similar to what you have there but its certainly worth looking into (do some searching on google and on this forum for something like "vb.net datagridview data binding" )