| Implemented Interface | Description | 
|---|---|
| IBaseField2 | Represents a basic data field or entity, such as an attachment. | 
| IBaseField3 | Represents a basic data field or entity, such as an attachment. | 
| IBaseField4 | Represents a basic data field or entity, such as an attachment. | 
| IMailableEntity | Mail support for entities. | 
| ISysTreeNode2 | Represents a tree node. | 
  AddNode | Adds a new child node. | 
  FindChildNode | Finds a child node by node name. | 
  FindChildren | Finds node children according to specified search pattern. | 
  LockObject | Locks the object. Returns True if the object has been changed on the server. | 
  Mail | Mails the IBaseFieldExMail field item. | 
  MailEx | Mails the IMailableEntity field item. | 
  NewList | Gets a list of the node's immediate children. | 
  Post | Posts all changed values into database. | 
  Refresh | Reads saved values, overwriting values in memory. | 
  RemoveNode | Deletes the specified node. | 
  Undo | Undoes changes to field values that have not been posted. | 
  UnLockObject | Unlocks the object. | 
  Attachments | The Attachment factory for the object. | 
  Attribute | Gets the node attribute. | 
  AutoPost | If true, the database is updated immediately when the field value changes. | 
  AutoUnlock | Indicates whether to make the item changeable to other users automatically after a Refresh or Post. | 
  Child | Gets a sub-folder of the current folder. | 
  Count | The number of child nodes. | 
  DepthType | The sub-tree depth type. | 
  Father | The current folder's parent folder. | 
  Field | The value of the specified field. | 
  FieldMultiValue | The MultiValue object of the specified field. | 
  HasAttachment | Checks if the object has one or more attachments. | 
  ID | The item ID. | 
  IsLocked | Checks if object is locked for editing. | 
  Modified | Checks if the item has been modified since last refresh or post operation. If true, the field properties on the server side are not up to date. | 
  Name | The node name. | 
  NodeID | The node ID number. | 
  Path | The folder tree path starting from the tree root. | 
  TestFactory | The TestFactory object for direct child tests. | 
  TestFolderFactory | The TestFolderFactory for direct child test folders. | 
  Type | The node's type. | 
  TypeName | The field's type. | 
  Virtual | Checks if this is a virtual item, that is, an item that does not have a corresponding database record. |