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DashboardViewer.AsyncDataLoading Event

Allows you to provide data for the DashboardObjectDataSource in asynchronous mode.

Namespace: DevExpress.DashboardWin

Assembly: DevExpress.Dashboard.v22.1.Win.dll


public event DataLoadingEventHandler AsyncDataLoading

Event Data

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

Property Description
Data Gets or sets data for the current data source.
DataId Gets an object data source’s unique identifier.
DataSourceComponentName Get the component name of the data source for which the event has been raised.
DataSourceName Gets the name of the data source for which the event has been raised.
OverwriteDataSourceProperty Specifies whether the DataSource and DataMember properties of the DashboardObjectDataSource are set when data is supplied in the event handler.
Parameters Provides access to parameter values passed to the object data source.


The AsyncDataLoading event is raised in asynchronous mode when the dashboard loads data from the DashboardObjectDataSource. Use the event parameter’s e.Data property to provide data for this data source. The data object should implement the IEnumerable or IListSource interface.


You cannot access a control’s properties such as the DashboardControl.Dashboard property through the AsyncDataLoading event because it receives data asynchronously from a background thread.

The following code snippets (auto-collected from DevExpress Examples) contain references to the AsyncDataLoading event.


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See Also