public bool MergePageResponseDetail(PageResponseDetail pageResponseDetail)
{
// Assume that the page has been updated
var hasBeenUpdated = true;
if (PageResponseDetailList.Count > 0)
{
// Check if the page already exists in the PageResponseDetail.
// Either the index to the existing page response detail will be returned
// or a negative number which is the one's complement of the insertion point will be returned.
int index = GetPageResponseDetailIndexByPageNumber(pageResponseDetail.PageNumber);
if (index >= 0)
{
// Check to see if the page has been updated
hasBeenUpdated = !(PageResponseDetailList[index].Equals(pageResponseDetail));
if (hasBeenUpdated)
{
pageResponseDetail.HasBeenUpdated = hasBeenUpdated;
PageResponseDetailList[index] = pageResponseDetail;
}
}
else
{
hasBeenUpdated = true;
pageResponseDetail.HasBeenUpdated = hasBeenUpdated;
// The one's complement is the insertion index
index = ~index;
if (index >= PageResponseDetailList.Count)
{
PageResponseDetailList.Add(pageResponseDetail);
}
else
{
PageResponseDetailList.Insert(index, pageResponseDetail);
}
}
}
else
{
hasBeenUpdated = true;
pageResponseDetail.HasBeenUpdated = hasBeenUpdated;
PageResponseDetailList.Add(pageResponseDetail);
}
if (!PageIds.Contains(pageResponseDetail.PageId))
{
PageIds.Add(pageResponseDetail.PageId);
PageIds.Sort();
}
return(hasBeenUpdated);
}
public void AddPageResponseDetail(PageResponseDetail pageResponseDetail)
{
var existingItem = PageResponseDetailList.SingleOrDefault(p => p.PageId == pageResponseDetail.PageId);
if (existingItem != null)
{
PageResponseDetailList.Remove(existingItem);
}
FormId = FormId ?? pageResponseDetail.FormId;
FormName = FormName ?? pageResponseDetail.FormName;
pageResponseDetail.FormId = FormId;
pageResponseDetail.FormName = FormName;
pageResponseDetail.ResponseId = ResponseId;
PageResponseDetailList.Add(pageResponseDetail);
PageIds = PageResponseDetailList.Select(p => p.PageId).OrderBy(pid => pid).ToList();
}