private void ResetFilters(object sender, EventArgs e) { CB_Species.SelectedIndex = 0; CB_Move1.SelectedIndex = CB_Move2.SelectedIndex = CB_Move3.SelectedIndex = CB_Move4.SelectedIndex = 0; CB_GameOrigin.SelectedIndex = 0; RTB_Instructions.Clear(); if (sender == null) { return; // still starting up } foreach (var chk in TypeFilters.Controls.OfType <CheckBox>()) { chk.Checked = true; } System.Media.SystemSounds.Asterisk.Play(); }