Occurs when a value is requested from the UnboundSource.
public event EventHandler<UnboundSourceValueNeededEventArgs> ValueNeeded
Public Event ValueNeeded As EventHandler(Of UnboundSourceValueNeededEventArgs)
The ValueNeeded event's data class is UnboundSourceValueNeededEventArgs. The following properties provide information specific to this event:
|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.|
Handle this event to obtain data from your data source. An example is provided in the UnboundSource topic.