Gets or sets a value indicating if the checkbox is checked.
Property Value
true if the checkbox is checked;
false if the checkbox is unchecked; a null reference (
Nothing in Visual Basic) if the checkbox is in an undetermined state (
IsThreeState property is set to
true). By default,
false.
Target Platforms: Windows 11, Windows, 10, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2