/// <summary>
/// Manages the expand states.
/// </summary>
/// <param name="targetColumn">The target column.</param>
public void ManageExpandStates(IDetailColumn targetColumn = null)
{
SpreadsheetView spreadsheet = null;
if (targetColumn == null)
{
targetColumn = ParentColumn as IDetailColumn;
spreadsheet = ParentSpreadsheet ?? this;
}
else
{
spreadsheet = targetColumn.Owner;
}
if (spreadsheet.ItemsSource == null || ((IList)spreadsheet.ItemsSource).Count == 0)
{
spreadsheet._childSpreadsheets.Clear();
if (spreadsheet.Columns != null)
{
foreach (IDetailColumn column in spreadsheet.Columns.Where(x => x is IDetailColumn))
{
column.IsExpanded = false;
column.CanExpand = false;
}
}
}
else
{
if (targetColumn != null && spreadsheet != null)
{
var collapseColumn = !GetTopLevelSpreadsheet().GetAllChildSpreadsheets()
.Where(x => x.ParentColumn == targetColumn)
.Any(x => x.IsVisible || (x.ParentCell.ContainedValue != null && x.Columns.Any()));
if (collapseColumn)
{
targetColumn.IsExpanded = false;
targetColumn.CanExpand = false;
}
else
{
if (!targetColumn.IsExpanded && !targetColumn.CanExpand)
targetColumn.IsExpanded = true;
targetColumn.CanExpand = true;
}
}
}
}
/// <summary>
/// Switches the visibility including children.
/// </summary>
/// <param name="column">The column.</param>
public void SwitchVisibilityIncludingChildren(IDetailColumn column)
{
if (ParentColumn != column)
foreach (var spreadsheet in _childSpreadsheets)
{
spreadsheet.SwitchVisibilityIncludingChildren(column);
}
else
SwitchVisibility();
}
