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 End-User Documentation

RepositoryItemLookUpEdit.CustomDrawLine Event

Provides the capability to perform custom painting of vertical grid lines in the drop-down.

Namespace:DevExpress.XtraEditors.Repository
Assembly:DevExpress.XtraEditors.v17.1.dll

Expanded Syntax

Expanded Event Data

The event handler receives an argument of type DevExpress.XtraEditors.Popup.LookUpCustomDrawLineArgs containing data related to this event.

Expanded Remarks

If the ShowLines property is set to true, vertical lines separating the grid columns (see Columns) are displayed in the drop-down.

By default, the line appearance depends on the skin settings, if applied; or otherwise, on the system settings. The CustomDrawLine event fires each time the drop-down is about to be painted, and allows you specify custom appearance settings or perform custom painting of vertical grid lines in the drop-down.

You can specify custom appearance settings using the event arguments' Apperance property. The code snippet below shows how to specify a custom color for the vertical grid lines.

The result is shown below.

You can also provide custom painting of the lines using the Graphics object accessible through the arguments' Cache property. The code snippet below shows how to draw the grid lines with a custom color and dash style. Note that the arguments' Handled property must be set to true to prevent the default painting.

The figure below shows the result.

Expanded See Also

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