/// <summary>
/// Sets the displayed column settings to the given settings.
/// </summary>
/// <param name="columnSettings">A mapping of <see cref="Column"/>s to their visibility state.</param>
public void SetVisibleColumns(IReadOnlyDictionary <Column, bool> columnSettings)
{
Contract.RequiresNotNull(columnSettings, nameof(columnSettings));
AvailableColumns.Clear();
VisibleColumns.Clear();
SelectedAvailableColumns.Clear();
SelectedVisibleColumns.Clear();
foreach (Column col in Enum.GetValues(typeof(Column)))
{
bool isVisible;
if (!columnSettings.TryGetValue(col, out isVisible))
{
isVisible = false;
}
if (isVisible)
{
VisibleColumns.Add(col);
}
else
{
AvailableColumns.Add(col);
}
}
}
private void HideColumns()
{
// ToArray used to detach the selection collection while we change the lists.
foreach (var col in SelectedVisibleColumns.ToArray())
{
VisibleColumns.Remove(col);
AvailableColumns.Add(col);
}
SelectedVisibleColumns.Clear();
}
private bool CanMoveColumnsDown()
{
return(SelectedVisibleColumns.Count != 0 &&
!SelectedVisibleColumns.Contains(VisibleColumns.Last()));
}
private bool CanMoveColumnsUp()
{
return(SelectedVisibleColumns.Count != 0 &&
!SelectedVisibleColumns.Contains(VisibleColumns[0]));
}
