private void MostrarDatos() { OleDbCommand cmd = new OleDbCommand(); if (con.State != ConnectionState.Open) { con.Open(); } cmd.Connection = con; cmd.CommandText = "select * from Porgramación"; OleDbDataAdapter da = new OleDbDataAdapter(cmd); dt = new DataTable(); da.Fill(dt); gvDatos.ItemsSource = dt.AsDataView(); }