CheckedListBox

As the name says, CheckedListBox is a combination of a ListBox and a CheckBox. It displays a ListBox with a CheckBox towards it's left. The CheckedListBox class is derived from the ListBox class and is based on that class. Since the CheckedListBox is derived from the ListBox it shares all the members of ListBox. Below is the Image of a CheckedListBox.

Notable Properties of CheckedListBox

The notable property in the appearance section of the properties window is the ThreeDCheckBoxes property which is set to False by default. Setting it to True makes the CheckedListBox to be displayed in Flat or Normal style.

Notable property in the behavior section is the CheckOnClick property which is set to False by default. When set to False it means that to check or uncheck an item in the CheckedListBox we need to double-click the item. Setting it to True makes an item in the CheckedListBox to be checked or unchecked with a single click.

Notable property in the Data section is the Items property with which we add items to the CheckedListBox.

Private Sub CheckedListBox1_SelectedIndexChanged(ByVal sender As System.Object,_ ByVal e As System.EventArgs) Handles CheckedListBox1.SelectedIndexChanged End Sub

Working with CheckedListBoxes is similar to working with ListBoxes. Please refer to examples in that section here.