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   [Expand]Collection Class
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     NavBarControl Members
     NavBarControl Constructor
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    [Collapse]NavBarControl Events
      ActiveGroupChanged Event
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      CalcHintSize Event
      CustomDrawBackground Event
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   [Expand]NavBarCustomDrawHintEventArgs Class
    NavBarCustomDrawHintEventHandler Delegate
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 End-User Documentation

NavBarControl.CustomDrawHint Event

Provides the capability to perform custom painting of hints in the VSToolBoxView paint style.

Namespace:DevExpress.XtraNavBar
Assembly:DevExpress.XtraNavBar.v17.1.dll

Expanded Syntax

Expanded Event Data

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

The following NavBarCustomDrawHintEventArgs properties provide information specific to this event.
Property Description
Appearance Gets the painted hint's appearance settings.
Bounds Gets the hint's bound rectangle.
Group Gets the group for which the hint is displayed.
Handled Gets or sets a value specifying whether the control should perform default hint painting.
Hint Gets the hint text.
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.
PaintArgs Gets an object containing painting parameters.

Expanded Remarks

Write a CustomDrawHint event handler to perform custom painting of hints when the NavBarControl is painted using the VSToolBoxView style. In the VSToolBoxView style, hints are supported only for groups. In other paint styles, the CustomDrawHint event is not in effect. To custom paint hints in these styles, use the ToolTipController.CustomDraw event of a ToolTipController object (for instance, of the DefaultToolTipController object).

While handling the CustomDrawHint event, set the event's NavBarCustomDrawHintEventArgs.Handled parameter to true, to disable default painting. Other properties of the event parameter allow you to identify the group whose hint is painted, and provide all necessary information to paint.
Note

The control's events designed to change the appearance or rendering of control elements must not be used to update cell values or to modify the control's layout. Any inappropriate operation which causes a layout update, may break the normal control behavior.

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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