UnboundDataSource.ValueNeeded Event

Occurs before a value is pulled from the data source.

Namespace: DevExpress.Xpf.Core.DataSources

Assembly: DevExpress.Xpf.Core.v20.2.dll

Declaration

public event EventHandler<UnboundSourceValueNeededEventArgs> ValueNeeded
Public Event ValueNeeded As EventHandler(Of UnboundSourceValueNeededEventArgs)

Event Data

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

Property Description
PropertyIndex
PropertyName Gets the name of the property whose value is requested.
RowIndex Gets the row index of the value.
Tag Gets an object that contains data associated with the value.
Value Specifies the value which is requested.

The event data class exposes the following methods:

Method
SetValue<T>(T)

Remarks

Handle the ValueNeeded event to pull a value from the data source.

See Also