/// <summary>
/// retrieves tags and categories for the resource
/// </summary>
private void RetrieveTagsAndCategories()
{
using (ZentityContext context = CoreHelper.CreateZentityContext())
{
ScholarlyWorkItem resource = context.Resources
.OfType <ScholarlyWorkItem>()
.Where(res => res.Id == ResourceUri)
.FirstOrDefault();
if (resource == null ||
!resource.Authorize("Read", context, CoreHelper.GetAuthenticationToken()))
{
return;
}
resource.CategoryNodes.Load();
List <string> categoryNames = resource.CategoryNodes
.Select(category => category.Title)
.ToList();
CategoryNames.AddRange(categoryNames);
resource.Tags.Load();
List <string> tagNames = resource.Tags
.Select(tag => tag.Name)
.ToList();
TagNames.AddRange(tagNames);
}
}
/// <summary>
/// Populate tree view from data source.
/// </summary>
protected override void PopulateTree()
{
if (!this.Page.IsPostBack)
{
resource = GetScholarlyWorkItem();
_subjectLabel.Text = GlobalResource.CategoryAssociationSubjectLabel;
_subjectLink.Text = HttpUtility.HtmlEncode(CoreHelper.FitString(CoreHelper.UpdateEmptyTitle(
CoreHelper.GetTitleByResourceType(resource)), _maxCharShownTree));
_subjectLink.NavigateUrl = string.Format(CultureInfo.CurrentCulture, SubjectNavigationUrl,
resource.Id);
BindTreeView(true);
}
}
