private static void SetHeader(SortingGridViewColumnHeader newHeader, ListViewSortItem listViewSortItem, ListSortDirection sortDirection)
{
if (listViewSortItem.LastColumnHeaderClicked != null &&
listViewSortItem.LastColumnHeaderClicked is SortingGridViewColumnHeader sortingHeader)
{
sortingHeader.IsSelected = false;
}
if (newHeader == null)
{
return;
}
newHeader.IsSelected = true;
newHeader.ListSortDirection = sortDirection;
}
private static ListSortDirection GetSortingDirection(GridViewColumnHeader headerClicked, ListViewSortItem listViewSortItem)
{
if (!Equals(headerClicked, listViewSortItem.LastColumnHeaderClicked))
{
return(ListSortDirection.Ascending);
}
return(listViewSortItem.LastSortDirection == ListSortDirection.Ascending ? ListSortDirection.Descending : ListSortDirection.Ascending);
}
