WebChartControl.CallbackStateLoad Event

Occurs when a chart loads its view state between multiple callbacks.

Namespace : DevExpress.XtraCharts.Web

Assembly : DevExpress.XtraCharts.v25.2.Web.dll

NuGet Package : DevExpress.Web.Visualization

Declaration

csharp

public event CallbackStateLoadEventHandler CallbackStateLoad

Public Event CallbackStateLoad As CallbackStateLoadEventHandler

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

Property	Description
Chart	Gets the chart for which the event was raised. Inherited from CallbackStateEventArgs.

The event data class exposes the following methods:

Method	Description
GetPropertyValue(String)	Returns a value for the specified property on the WebChartControl.CallbackStateLoad event.

Handle the WebChartControl.CallbackStateSave and CallbackStateLoad events to manually decide which property values should be passed between a server and a client on callbacks. To set a property value to be passed, use the CallbackStateSaveEventArgs.SetPropertyValue method. To load a property value, use the CallbackStateLoadEventArgs.GetPropertyValue method.

Note

The CallbackStateSave and CallbackStateLoad events are raised only if the WebChartControl.SaveStateOnCallbacks property is set to true.