private void ApplySortColumn(DataGridColumn column)
{
// If column was not sorted, we sort it ascending. If it was already sorted, we flip the sort direction.
string sortColumn = this.GetColumnSortMemberPath(column);
CustomSortDescription existingSortDescription = this.sortDescriptions.SingleOrDefault(sd => sd.PropertyName == sortColumn);
if (existingSortDescription == null)
{
existingSortDescription = new CustomSortDescription
{
PropertyName = sortColumn,
Direction = ListSortDirection.Ascending,
Column = column
};
this.sortDescriptions.Add(existingSortDescription);
}
else
{
existingSortDescription.Direction = (existingSortDescription.Direction == ListSortDirection.Ascending) ? ListSortDirection.Descending : ListSortDirection.Ascending;
}
// If user is not pressing Shift, we remove all SortDescriptions except the current one.
bool isShiftPressed = (Keyboard.Modifiers & ModifierKeys.Shift) != 0;
if (!isShiftPressed)
{
for (int i = this.sortDescriptions.Count - 1; i >= 0; i--)
{
CustomSortDescription csd = this.sortDescriptions[i];
if (csd.PropertyName != sortColumn)
{
this.sortDescriptions.RemoveAt(i);
}
}
}
this.RefreshData();
}
private void ApplySortColumn(DataGridColumn column)
{
// If column was not sorted, we sort it ascending. If it was already sorted, we flip the sort direction.
string sortColumn = GetColumnSortMemberPath(column);
CustomSortDescription existingSortDescription = sortDescriptions.SingleOrDefault(sd => sd.PropertyName == sortColumn);
if (existingSortDescription == null)
{
existingSortDescription = new CustomSortDescription
{
PropertyName = sortColumn,
Direction = ListSortDirection.Ascending,
Column = column
};
sortDescriptions.Add(existingSortDescription);
}
else
{
existingSortDescription.Direction = (existingSortDescription.Direction == ListSortDirection.Ascending) ? ListSortDirection.Descending : ListSortDirection.Ascending;
}
// If user is not pressing Shift, we remove all SortDescriptions except the current one.
bool isShiftPressed = (Keyboard.Modifiers & ModifierKeys.Shift) != 0;
if (!isShiftPressed)
{
for (int i = sortDescriptions.Count - 1; i >= 0; i--)
{
CustomSortDescription csd = sortDescriptions[i];
if (csd.PropertyName != sortColumn)
{
sortDescriptions.RemoveAt(i);
}
}
}
RefreshData();
}
