ThreeState Property (FpCheckBox)

Gets or sets whether the check box control has a third state.

Syntax

Visual Basic
C#

'Declaration
 
Public Overridable Property ThreeState As Boolean

'Usage
 
Dim instance As FpCheckBox
Dim value As Boolean
 
instance.ThreeState = value
 
value = instance.ThreeState

public virtual bool ThreeState {get; set;}

Property Value

true if three-state check boxes; false for two-state

Remarks

Check boxes can be either two-state (with true and false) or three-state (with true, false, and indeterminate). Indeterminate check boxes indicate that the condition is neither true nor false. For example, if some selected text is bold and some is not, a Bold check box might be indeterminate, to show the mixed state.

You can specify check box pictures for all the states using the Picture property. Specify text for the states using the TextIndeterminate, TextFalse, and TextTrue properties.

Example

control.ThreeState = true;
control.Checked = false;
control.Picture[1] = Image.FromFile("..\\check1.bmp");

Visual Basic

control.ThreeState = True
control.Checked = False
control.Picture(1) = Image.FromFile("..\check1.bmp")

Requirements

Target Platforms: Windows 2000 Professional (SP4), Windows 2000 Server, Windows 2003 Server (SP1), Windows Server 2012 R2, Windows 2008, Windows XP (SP2), Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10

Reference

FpCheckBox Class
FpCheckBox Members
Picture Property
TextIndeterminate Property
TextFalse Property
TextTrue Property