Search Functionaltiy w/ Datagrid

[EyeTalion]

I just started using the datagrid, someone want to take the time to explain this code?

thanks

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim tb As New DataTable("testTBL")
        Dim clm As New DataColumn("testCLM", GetType(String))
        tb.Columns.Add(clm)
        Dim tbs As New DataGridTableStyle()
        Dim dgc As New dgcell()
        dgc.MappingName = "testCLM"
        tbs.MappingName = "testTBL"
        tbs.GridColumnStyles.Add(dgc)
        DataGrid1.TableStyles.Add(tbs)
        DataGrid1.DataSource = tb
 
    End Sub