public TreeViewItemEx SearchPrev(TreeViewItemEx item)
{
int index = ParentItems.IndexOf(item);
if (index == -1)
{
return(null);
}
TreeViewItemEx result = null;
if (index != 0)
{
// В текущий коллекции найден предыдущий элемент
result = (TreeViewItemEx)ParentItems[index - 1];
}
else if (ParentItem != null)
{
result = ParentItem;
}
else
{
// Перебор по родителям, любой следующий дочерний элемент будет найденным
result = SearchPrev(ParentItem);
}
return(result);
}
internal Model.Member FindMe(string id)
{
if(Items == null || Items.Count <= 0)
{
return null;
}
Model.Member member = Items.FirstOrDefault(x => x.Id == id);
if(member != null)
{
member.IsMe = true;
switch(member.Auth)
{
case AuthType.STUDENT:
Student student = StudentItems.Single(x => x.Id == id);
student.IsMe = true;
break;
case AuthType.TEACHER:
Teacher teacher = TeacherItems.Single(x => x.Id == id);
teacher.IsMe = true;
break;
case AuthType.PARENT:
Parent parent = ParentItems.Single(x => x.Id == id);
parent.IsMe = true;
break;
}
return member;
}
return new Model.Member();
}
/// <summary>
/// Pres the save.
/// </summary>
/// <param name="dbContext">The database context.</param>
/// <param name="state">The state.</param>
public override void PreSaveChanges(DbContext dbContext, System.Data.Entity.EntityState state)
{
if (state == System.Data.Entity.EntityState.Deleted)
{
ChildItems.Clear();
ParentItems.Clear();
}
}
internal void AddParent(Parent parent)
{
lock (_lock)
{
// Once locked, you can manipulate the collection safely from another thread
ParentItems.Add((Parent)parent.Clone());
}
}
/// <summary>
/// Pres the save.
/// </summary>
/// <param name="dbContext">The database context.</param>
/// <param name="state">The state.</param>
public override void PreSaveChanges(Data.DbContext dbContext, System.Data.Entity.EntityState state)
{
var channel = this.ContentChannel;
if (state == System.Data.Entity.EntityState.Deleted)
{
ChildItems.Clear();
ParentItems.Clear();
}
base.PreSaveChanges(dbContext, state);
}
private void LoadDummyParentItems()
{
for (var i = 0; i < 20; i++)
{
ParentItems.Add(new ParentItem()
{
Name = $"Parent Item {i}",
CreatedOn = DateTime.Now.AddHours(i),
IsActive = i % 2 == 0 ? true : false,
Status = i % 2 == 0 ? ParentItemStatus.Status_Two : ParentItemStatus.Status_One,
ChildItems = new List<string>() { $"Child one_{i}", $"Child two_{i}", $"Child three_{i}", $"Child four_{i}" }
});
}
}
internal void SetParentInfo(Student student)
{
foreach (ParentLog item in student.ParentsLogs)
{
Parent parentInfo = ParentItems.FirstOrDefault(x => x.Idx == item.ParentIdx);
if (parentInfo != null)
{
item.Name = parentInfo.Name;
item.PhoneNum = parentInfo.Mobile;
item.Image = parentInfo.ProfileImage;
}
}
}
/// <summary>
/// Pres the save.
/// </summary>
/// <param name="dbContext">The database context.</param>
/// <param name="state">The state.</param>
public override void PreSaveChanges(Data.DbContext dbContext, EntityState state)
{
var channel = this.ContentChannel;
if (state == EntityState.Deleted)
{
ChildItems.Clear();
ParentItems.Clear();
DeleteRelatedSlugs(dbContext);
}
else
{
AssignItemGlobalKey(dbContext);
}
base.PreSaveChanges(dbContext, state);
}
public void ListToLevels(List <string> Values, List <int> Levels)
{
Element.Items.Clear();
for (int i = 0; i < Levels.Count; i++)
{
if (Levels[i] > 0)
{
TreeViewItem ParentItem = (TreeViewItem)Element.Items[Element.Items.Count - 1];
ObservableCollection <TreeViewItem> ParentItems = (ObservableCollection <TreeViewItem>)ParentItem.ItemsSource;
if (ParentItems == null)
{
ParentItems = new ObservableCollection <TreeViewItem>();
}
for (int j = 1; j < Levels[i]; j++)
{
ParentItem = (TreeViewItem)ParentItems[ParentItems.Count - 1];
ParentItems = (ObservableCollection <TreeViewItem>)ParentItem.ItemsSource;
if (ParentItems == null)
{
ParentItems = new ObservableCollection <TreeViewItem>();
}
}
TreeViewItem SingleItem = new TreeViewItem();
SingleItem.Header = Values[i];
ParentItems.Add(SingleItem);
ParentItem.ItemsSource = ParentItems;
}
else
{
TreeViewItem SingleItem = new TreeViewItem();
SingleItem.Header = Values[i];
Element.Items.Add(SingleItem);
}
}
}
internal Parent GetParentByIdx(int idx)
{
if (ParentItems == null || ParentItems.Count <= 0) return null;
return ParentItems.Where(x => x.Idx == idx).FirstOrDefault();
}
