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     NavBarControl Members
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      ActiveGroupChanged Event
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 End-User Documentation

NavBarControl.CalcHintSize Event

Allows you to assign a custom hint size before a hint is displayed in the VSToolBoxView paint style.

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

Expanded Syntax

Expanded Event Data

The event handler receives an argument of type NavBarCalcHintSizeEventArgs containing data related to this event.

The following NavBarCalcHintSizeEventArgs properties provide information specific to this event.
Property Description
Group Gets the group for which the hint is displayed.
HintInfo Gets an object providing information on the NavBarControl's element for which the hint event was fired.
Link Gets the link for which the hint is displayed.
Size Gets or sets hint size.

Expanded Remarks

Write a CalcHintSize event handler to perform hint size corrections before a hint is displayed in the VSToolBoxView paint style. Typically, you need to correct the hint size to perform custom painting via the CustomDrawHint event. In other paint styles, the CalcHintSize event is not in effect. To customize the hint size and custom paint hints in these styles, handle the ToolTipController.CalcSize and ToolTipController.CustomDraw events of a tooltip controller object (for instance, of the DefaultToolTipController object).

In the VSToolBoxView paint style, hints are supported only for groups. The event's parameter allows you to determine the group on which a hint is about to be displayed.

Hint text of groups/links is specified via the NavElement.Hint property. Write a GetHint event handler to assign custom text and style to a hint before it is displayed. The CalcHintSize event fires for each element whose hint text is not empty.

Expanded Example

The sample code below handles the CustomDrawHint event to custom paint hints in the VSToolBoxView style. The CalcHintSize event is handled to adjust the size of the hints in order to draw their outer borders.

The image below shows the result.

Expanded See Also

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