private void button2_Click_1(object sender, RoutedEventArgs e) { if (cmbuom.SelectedItem != null && dpdate.SelectedDate != null) { cmbuom.ClearValue(ComboBox.BorderBrushProperty); dpdate.ClearValue(DatePicker.BorderBrushProperty); commoditymodel cm = new commoditymodel(txtconame.Text, cmbuom.SelectedValue.ToString(), txtcopp.Text, txtcosp.Text, txtcoops.Text, dpdate.Text); if (cm.insert(this)) { Show("Saved Succesfully",1); } else { //dashboard d = new dashboard(); ////////////////////cm.showerror(error, this); } } else { cmbuom.BorderBrush = Brushes.Red; dpdate.BorderBrush = Brushes.Red; } }