/// <summary>
/// Exclude page controls and data for all pages except for the requested page.
/// If the requested page has a summary control. All controls data for other pages will be returned (none will be removed).
/// </summary>
/// <param name="pageId">The page id passed from the client, which holds special meaning.</param>
/// <param name="pages">The list of all pages for the form.</param>
/// <returns>The page list to use.</returns>
/// <remarks>
/// When <paramref name="pageId"/> is <see langword="null"/>, then the return value is all <paramref name="pages"/>.
/// When <paramref name="pageId"/> is -1, then the return value is the first page in <paramref name="pages"/>.
/// Otherwise the return value is the page that with an id matching <paramref name="pageId"/>.
/// </remarks>
private PageList RemoveUnecessaryControlsData(int? pageId, PageList pages)
{
Page currentPage = null;
currentPage = !pageId.HasValue || pageId.Value == -1 ? pages[0] : pages.FindByPageId(pageId.Value);
if (currentPage == null)
{
return pages;
}
if (PageHasSummaryControl(currentPage))
{
var summaryControl = currentPage.Controls.FindAllRecursive<SummaryControl>().First();
if (!summaryControl.IncludedControls.All)
{
foreach (var page in pages)
{
if (page == currentPage)
{
continue;
}
var controls = page.Controls.Where(c => summaryControl.IncludedControls.Controls.Contains(c.Name));
page.Controls = new ControlList(controls);
}
}
}
else
{
pages.Clear();
pages.Add(currentPage);
}
return pages;
}
