[Root] / Xceed.Wpf.Controls Assembly / Xceed.Wpf.Controls Namespace / CheckBox Class / IsThreeState Property


In This Topic
    IsThreeState Property
    In This Topic
    Gets or sets a value indicating if the checkbox can be in an undetermined state: neither checked or unchecked.
    Syntax
    'Declaration
     
    Public Property IsThreeState As Boolean
    'Usage
     
    Dim instance As CheckBox
    Dim value As Boolean
     
    instance.IsThreeState = value
     
    value = instance.IsThreeState
    public bool IsThreeState {get; set;}

    Property Value

    true if the checkbox can be in an undetermined state; false if the checkbox can only be checked or unchecked. If set to true, the IsChecked property will return a null reference (Nothing in Visual Basic) in the case where the checkbox is in an undetermined state. By default, false.
    Supported Frameworks

    .NET: net5.0, net5.0-windows, net6.0, net6.0-macos, net6.0-windows, net7.0, net7.0-macos, net7.0-windows, net8.0, net8.0-browser, net8.0-macos, net8.0-windows, net9.0, net9.0-browser, net9.0-macos, net9.0-windows, net10.0, net10.0-browser, net10.0-macos, net10.0-windows.

    .NET Framework: net20, net35, net40, net403, net45, net451, net452, net46, net461, net462, net463, net47, net471, net472, net48, net481.

    See Also