private static bool CheckChanges(Worksheet worksheet, UndoItem x)
{
object currentValue = ((Range)worksheet.Cells[x.RowIndex, x.ColumnIndex]).Value;
if (currentValue.GetType() != x.NewValue.GetType())
{
return(true);
}
return(!x.NewValue.Equals(currentValue));
}
public void PushUndoItem(UndoItem undoItem)
{
undoItems.Add(undoItem);
}