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pure virtual |
When overridden in a derived class, Sets the zero-based index of the currently selected item.
selected_index | A zero-based index of the currently selected item. A value of negative one (-1) is returned if no item is selected. |
Implemented in xtd::forms::checked_list_box, xtd::forms::checked_list_box, xtd::forms::choice, xtd::forms::combo_box, xtd::forms::list_box, xtd::forms::choice, xtd::forms::combo_box, and xtd::forms::list_box.