datagridview add new row

[new1]

i have this code to fill my datagrid with data from access database table

Dim CON As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source =" & Application.StartupPath & "\database.mdb")
Dim sql As String = "select bot.trigger,bot.verse1 from bot"
Dim data As New OleDbDataAdapter(sql, CON)
        Dim ds As New DataSet
        ds.Clear()
        data.Fill(ds, "bot")
        DataGridView1.DataSource = ds
        DataGridView1.DataMember = "bot"

now i want to add new row to the datagrid with value from textbox
i get error that datagridview is bound
how can i do this?