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

Syntax

Visual Basic (Declaration)
Public Overridable Property ThreeState As Boolean

Visual Basic (Usage)	Copy Code
Dim instance As FpCheckBox Dim value As Boolean instance.ThreeState = value value = instance.ThreeState

C#
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

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

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

Requirements

Target Platforms: 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

Syntax

Property Value

Remarks

Example

Requirements

See Also

Reference

Spread Windows Forms 6.0 Product Documentation
ThreeState Property
See Also Example Support Options