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   [Collapse]CheckButton Class
     CheckButton Members
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 End-User Documentation

CheckButton.GroupIndex Property

Gets or sets the index of a logical group to which the button belongs.

Namespace:DevExpress.XtraEditors
Assembly:DevExpress.XtraEditors.v17.2.dll

Expanded Syntax

Property value

Type: Int32
An integer value that specifies the index of the logical group to which the button belongs.
The default is -1.

Expanded Remarks

Multiple buttons can be combined into a logical group of mutually exclusive buttons. In this group, only one button can be in the depressed state at one time. Clicking another button unchecks the currently checked button, and checks the clicked button.

To combine buttons into a logical group, set their GroupIndex properties to the same non-negative value. If the GroupIndex propert is set to -1, this button doesn't belong to any group.

Normally, if a button that belongs to a group is checked, clicking the button again doesn't do anything. To allow a checked button that belongs to a group to be unchecked by clicking this button, set its AllowAllUnchecked property to true.

To respond to a button's state being changed, handle the CheckedChanged event.

Expanded See Also

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