private void txtBuscarSum_KeyUp(object sender, KeyEventArgs e) { Clases.C_Suministro sum = new Clases.C_Suministro(); dtgrdsum.ItemsSource = null; if (sum.BuscarSuministros(txtBuscarSum.Text).Count > 0) { dtgrdsum.ItemsSource = sum.BuscarSuministros(txtBuscarSum.Text); } }