If false, the collection can contain only one sort expression at a time. Trying to add a new one in this case will delete the existing expression or will change the sort order if its FiledName is the same.

Allow the no-sort state when changing sort order.

Returns the number of items in the KaxListViewSortExpressionCollection.

Gets a value indicating whether access to the KaxListViewSortExpressionCollection is synchronized (thread safe).

This is the default indexer of the collection - takes an integer value.

Gets an object that can be used to synchronize access to the GirdSortExpressionCollection.