GridExpandChangeEvent

Represents the object of the onExpandChange Grid event.

Name	Type	Default	Description
dataIndex	number		Zero based index of the data item.
dataItem	any		The data item that is expanded or collapsed.
nativeEvent	any		A native DOM event.
syntheticEvent	SyntheticEvent<any>		A React Synthetic Event.
target	GridHandle		An event target.
value	boolean		Indicates whether the data item is expanded or collapsed