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SchedulerControl.QueryResourceColorSchema Event

Enables visible resources to be painted according to certain conditions.

Namespace: DevExpress.Xpf.Scheduler

Assembly: DevExpress.Xpf.Scheduler.v24.1.dll

NuGet Package: DevExpress.Wpf.Scheduler


public event QueryResourceColorSchemaEventHandler QueryResourceColorSchema

Event Data

The QueryResourceColorSchema event's data class is QueryResourceColorSchemaEventArgs. The following properties provide information specific to this event:

Property Description
Resource Gets the resource for which the color schema is queried.
ResourceColorIndex Gets the index of the processed resource’s color schema in a SchedulerColorSchemaCollection collection.
ResourceColorSchema Gets or sets a color schema to be used for a visible resource coloring.



You are viewing documentation for the legacy WPF Scheduler control. If you’re starting a new project, we strongly recommend that you use a new control declared in the DevExpress.Xpf.Scheduling namespace. If you decide to upgrade an existing project in order to switch to the updated scheduler control, see the Migration Guidelines document.

By default, if you change a set of visible resources (for example, by using resource filter controls) the collection of resource color schemas will remain unchanged (SchedulerControl.GetResourceColorSchemasCopy), i.e. the same color schemas in the same order will be used to paint resources newly selected for display in the scheduler.


However, you can assign a specific color schema to each resource to be displayed. To do this, handle the QueryResourceColorSchema event.


The QueryResourceColorSchema event is raised before a resource to be displayed in the scheduler is painted. The event parameter’s QueryResourceColorSchemaEventArgs.Resource property provides information on a processed resource. To associate this resource with a required color schema, use the QueryResourceColorSchemaEventArgs.ResourceColorSchema property.

The QueryResourceColorSchema event can be helpful, if it is required to paint resources according to certain conditions (for example, to highlight a selected resource or specify a certain color schema for a resource, depending on its custom field value, etc.).

See Also