internal void SetSingleComboboxIndex(object sender, KeyEventArgs e) { if (e.KeyCode == Keys.Delete) ((ComboBox)sender).SelectedIndex = -1; } internal void ClearSingleCombobox(ComboBox cb) { cb.KeyDown += new System.Windows.Forms.KeyEventHandler(SetSingleComboboxIndex); }
ClearSingleCombobox
cb
var
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