The ListView.CheckBoxes property allows you to display a check box next to each item in the list. This enables your application to display a list of items (and subitems if the ListView.View property is set to View.Details) that the user can select by clicking the check box. The ListView.CheckBoxes property offers a way to select multiple items in the System.Windows.Forms.ListView control without using the CTRL key. Depending on your application, using check boxes to select items rather than the standard multiple selection method may be easier for the user. Even if the ListView.MultiSelect property of the System.Windows.Forms.ListView control is set to false, you can still display checkboxes and provide multiple selection capabilities to the user. This feature can be useful if you do not want multiple items to be selected yet still want to allow the user to choose multiple items from the list to perform an operation within your application.

To determine when an item has been checked, create an event handler for the ListView.ItemCheck event. To get all the items that are checked in the System.Windows.Forms.ListView, use the ListView.CheckedItems property to access the System.Windows.Forms.ListView.CheckedIndexCollection for the control. To get the indexes of all items that are checked in the System.Windows.Forms.ListView, use the ListView.CheckedIndices property.

If an System.Windows.Forms.ImageList is specified in the ListView.StateImageList property, the images at index positions 0 and 1 in the System.Windows.Forms.ImageList are displayed instead of the check box. The image at index position 0 is displayed instead of the unchecked check box, and the image at index position 1 is displayed instead of the checked check box.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0