protected void grdGrilla_SelectedIndexChanged(object sender, EventArgs e) { if (grdComprobantes.SelectedValue != null) { DAL.VistaComprobantes p = new DAL.VistaComprobantes(); p.obtener((int)grdComprobantes.SelectedValue); TextBox t = new TextBox(); t.Text = p.NumeroCompleto; this.Form.Controls.Add(t); } }