ListBox WinForms Guide: Usage & Setup

In Windows Forms, the ListBox control is used to display a single column list where users can select one or more items. The ListBox control is typically used to display a group of items from which users can select one or more items to perform actions on.

To use the ListBox control, first add a ListBox control to the form, and then add items to the ListBox through code. You can specify the number of items that users can select by setting the SelectionMode property of the ListBox, including Single (only one item can be selected), MultiSimple (multiple non-continuous items can be selected), MultiExtended (multiple items can be selected and can be selected continuously), etc.

In addition to adding items to a ListBox using code, you can also add items by setting the Items property at design time. You can use the SelectedIndex property to get or set the index of the currently selected item, and use the SelectedItems property to get the collection of currently selected items. The SelectedIndexChanged event of the ListBox can be used to handle operations when the user changes their selection.

In WinForms, the ListBox control is commonly used to display a group of selectable items, allowing users to perform actions by choosing from the options.