/// <summary>
/// Event delegate method fired when the <see cref="MultiHeaderCell.ColumnSpan"/> value changes.
/// </summary>
/// <param name="sender">Sender object.</param>
/// <param name="args">Event arguments.</param>
private void HeaderCellColumnSpanChangedAction(object sender, HeaderCellColumnSpanChangedArgs args)
{
var headerCell = args.HeaderCell;
if (headerCell == null)
{
return;
}
if (headerCell.ColumnIndex + args.NewColumnSpan > _headerCells.Count)
{
// If column span was incorrectly set to span more columns than the ones in the collection, reset it to the largest possible span.
headerCell.ColumnSpan = _headerCells.Count - headerCell.ColumnIndex;
return;
}
ResetHeaderCellsInSpan(headerCell.ColumnIndex, args.OldColumnSpan, false);
ResetHeaderCellsInSpan(headerCell.ColumnIndex, args.NewColumnSpan, true);
// Invalidate Height so it gets recalculated
_height = 0;
// Fire corresponding event
if (HeaderCellColumnSpanChanged != null)
{
HeaderCellColumnSpanChanged(this, args);
}
}
/// <summary>
/// Event delegate method fired when the <see cref="MultiHeaderCell.ColumnSpan"/> of a cell in one of the <see cref="MultiHeaderRow"/> objects in this grid changes value.
/// </summary>
/// <param name="sender">A <see cref="MultiHeaderRow"/> in this grid.</param>
/// <param name="args">The <see cref="HeaderCellColumnSpanChangedArgs"/> related to the event.</param>
private void HeaderCellColumnSpanChanged(object sender, HeaderCellColumnSpanChangedArgs args)
{
var headerRow = sender as MultiHeaderRow;
if (headerRow == null)
{
return;
}
AdjustColumnsWidth(args.HeaderCell);
}
