public Task<bool> SelectCellsAsync(
	int index,
	IEnumerable<int> rowIndices,
	IEnumerable<int> colIndices,
	bool softLock = false,
	bool deselectOnlyOneSelected = false,
	AsyncHandle asyncHandle = null
)

Public Function SelectCellsAsync ( 
	index As Integer,
	rowIndices As IEnumerable(Of Integer),
	colIndices As IEnumerable(Of Integer),
	Optional softLock As Boolean = false,
	Optional deselectOnlyOneSelected As Boolean = false,
	Optional asyncHandle As AsyncHandle = Nothing
) As Task(Of Boolean)