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 End-User Documentation
View this topic on docs.devexpress.com (Learn more)

VGridControlBase.CustomDrawRowHeaderIndent Event

Enables row header indents to be painted manually.

Namespace:DevExpress.XtraVerticalGrid
Assembly:DevExpress.XtraVerticalGrid.v19.2.dll

Expanded Syntax

Expanded Event Data

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

The following CustomDrawRowHeaderIndentEventArgs properties provide information specific to this event.
Property Description
Appearance Gets the painted element's appearance settings.
Bounds Gets a value specifying limits for the drawing area.
Cache Gets an object which specifies the storage for the most used pens, fonts and brushes.
CategoryIndents Gets a collection of category indents to be painted.
Graphics Gets an object used to paint.
Handled Gets or sets a value specifying whether an event was handled, if handled, default actions are not required.
IsRightToLeft Gets a value indicating whether the VGridControl's elements are aligned to support locales using right-to-left fonts.
ObjectArgs Gets an object containing information about the painted element.
Painter Gets the painter object that provides the default element's painting mechanism.
Properties Provides properties specific to the row being custom painted.
Row Gets the row whose element is to be drawn.
RowIndents Gets a collection of row indents that are going to be painted.

Expanded Remarks

The CustomDrawRowHeaderIndent event is raised before a row header indent is painted. The row where the processed indent resides can be obtained via the event parameter's CustomDrawRowEventArgs.Row property. The CustomDrawRowHeaderIndentEventArgs.CategoryIndents and CustomDrawRowHeaderIndentEventArgs.RowIndents parameters provide access to the collections of category and row indents. Individual indents can be accessed using index notation.

The CustomDrawRowHeaderIndent event can be used for two purposes:

  • To manually paint all or only particular row header indents. Note that you need to set the CustomDrawEventArgs.Handled parameter to true to indicate that the default painting is not required for the indent.
  • Change the indent's appearance settings and leave the CustomDrawEventArgs.Handled parameter set to false. This will paint the row header indent using the default mechanism but with modified settings.
Important

Never change cell values or modify the control's layout on this event, or any other event designed to tune the control's appearance. Any action that causes a layout update can cause the control to malfunction.

Expanded Example

The following sample code handles the CustomDrawRowHeaderCell and CustomDrawRowHeaderIndent events to custom paint the focused row header and its indents. If the focused row is a category row, it is painted in the default manner.

The image below shows the result.

Expanded See Also

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