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    The concepts and code examples might not work if you are running Umbraco 8.0 or a later version. If you are using Umbraco 7, this article is perfect for you!

    You are more than welcome to report any issues found on the Documentation Issue Tracker.

    trees.config

    The 'trees.config' file contains the configuration for trees that are loaded within each section of the Umbraco Backoffice.

    NB: Trees can also be configured in code and will generate an entry in this file.

    (Troubleshooting Tip: if you have problems loading a particular tree check that the trees.config or applications.config do not contain duplicate tree/section entries)

    Tree Configuration

    Each Tree element defined in trees.config requires the following attributes:

    • alias - The alias of the tree. to refer to the tree programmatically and the key to use in Language Translation files.
    • title - The title of the tree.
    • iconClosed - The icon to display when the tree element is closed.
    • iconOpen - The icon to display when the tree element has been expanded.
    • application - The alias of the section/application to load the tree in.
    • sortOrder - An integer used to determine the position of the tree in a section when multiple trees are defined.
    • initialize - Whether the tree should be initialized by default, eg when accessing the section in the backoffice
    • type - The type of the implementation of the tree in the format: FullClassName, AssemblyName

    Example trees.config file

    The following trees are configured by default in Umbraco:

    <trees>
  <!--Content-->
  <add initialize="true" sortOrder="0" alias="content" application="content" title="Content" iconClosed="icon-folder" iconOpen="icon-folder" type="Umbraco.Web.Trees.ContentTreeController, umbraco" />
  <add initialize="false" sortOrder="0" alias="contentRecycleBin" application="content" title="Recycle Bin" iconClosed="icon-folder" iconOpen="icon-folder" type="umbraco.cms.presentation.Trees.ContentRecycleBin, umbraco" />
  <!--Media-->
  <add initialize="true" sortOrder="0" alias="media" application="media" title="Media" iconClosed="icon-folder" iconOpen="icon-folder" type="Umbraco.Web.Trees.MediaTreeController, umbraco" />
  <add initialize="false" sortOrder="0" alias="mediaRecycleBin" application="media" title="Recycle Bin" iconClosed="icon-folder" iconOpen="icon-folder" type="umbraco.cms.presentation.Trees.MediaRecycleBin, umbraco" />
  <!--Settings-->
  <add initialize="true" sortOrder="0" alias="documentTypes" application="settings" title="Document Types" iconClosed="icon-folder" iconOpen="icon-folder-open" type="Umbraco.Web.Trees.ContentTypeTreeController, umbraco" />
  <add application="settings" alias="templates" title="Templates" iconClosed="icon-folder" iconOpen="icon-folder-open" type="Umbraco.Web.Trees.TemplatesTreeController, umbraco" initialize="true" sortOrder="1" />
  <add application="settings" alias="partialViews" title="Partial Views" silent="false" initialize="true" iconClosed="icon-folder" iconOpen="icon-folder" type="Umbraco.Web.Trees.PartialViewsTreeController, umbraco" sortOrder="2" />
  <add application="settings" alias="stylesheets" title="Stylesheets" type="umbraco.loadStylesheets, umbraco" iconClosed="icon-folder" iconOpen="icon-folder" sortOrder="3" />
  <add application="settings" alias="stylesheetProperty" title="Stylesheet Property" type="umbraco.loadStylesheetProperty, umbraco" iconClosed="" iconOpen="" initialize="false" sortOrder="0" />
  <add application="settings" alias="scripts" title="Scripts" type="Umbraco.Web.Trees.ScriptTreeController, umbraco" iconClosed="icon-folder" iconOpen="icon-folder" sortOrder="4" />
  <add application="settings" alias="languages" title="Languages" iconClosed="icon-folder" iconOpen="icon-folder-open" type="Umbraco.Web.Trees.LanguageTreeController, umbraco" sortOrder="5" />
  <add application="settings" alias="dictionary" title="Dictionary" type="umbraco.loadDictionary, umbraco" iconClosed="icon-folder" iconOpen="icon-folder" sortOrder="6" />
  <add initialize="true" sortOrder="7" alias="mediaTypes" application="settings" title="Media Types" iconClosed="icon-folder" iconOpen="icon-folder-open" type="Umbraco.Web.Trees.MediaTypeTreeController, umbraco" />
  <!--Developer-->
  <add initialize="true" sortOrder="0" alias="packager" application="developer" iconClosed="icon-folder" iconOpen="icon-folder-open" type="Umbraco.Web.Trees.PackagesTreeController, umbraco" />
  <add initialize="true" sortOrder="1" alias="dataTypes" application="developer" title="Data Types" iconClosed="icon-folder" iconOpen="icon-folder" type="Umbraco.Web.Trees.DataTypeTreeController, umbraco" />
  <add initialize="true" sortOrder="2" alias="macros" application="developer" iconClosed="icon-folder" iconOpen="icon-folder-open" type="Umbraco.Web.Trees.MacroTreeController, umbraco" />
  <add application="developer" alias="relationTypes" title="Relation Types" type="umbraco.loadRelationTypes, umbraco" iconClosed="icon-folder" iconOpen="icon-folder" sortOrder="4" />
  <add initialize="true" sortOrder="5" alias="xslt" application="developer" iconClosed="icon-folder" iconOpen="icon-folder-open" type="Umbraco.Web.Trees.XsltTreeController, umbraco" />
  <add application="developer" alias="partialViewMacros" type="Umbraco.Web.Trees.PartialViewMacrosTreeController, umbraco" silent="false" initialize="true" sortOrder="6" title="Partial View Macro Files" iconClosed="icon-folder" iconOpen="icon-folder" />
  <!--Users-->
  <add initialize="true" sortOrder="0" alias="users" application="users" iconClosed="icon-folder" iconOpen="icon-folder-open" type="Umbraco.Web.Trees.UserTreeController, umbraco" />
  <!--Members-->
  <add initialize="true" sortOrder="0" alias="member" application="member" title="Members" iconClosed="icon-folder" iconOpen="icon-folder-open" type="Umbraco.Web.Trees.MemberTreeController, umbraco" />
  <add initialize="true" sortOrder="1" alias="memberTypes" application="member" title="Member Types" iconClosed="icon-folder" iconOpen="icon-folder-open" type="Umbraco.Web.Trees.MemberTypeTreeController, umbraco" />
  <add application="member" sortOrder="2" alias="memberGroups" title="Member Groups" type="umbraco.loadMemberGroups, umbraco" iconClosed="icon-folder" iconOpen="icon-folder" />
  <!--Translation-->
  <add silent="false" initialize="true" sortOrder="1" alias="openTasks" application="translation" title="Tasks assigned to you" iconClosed="icon-folder" iconOpen="icon-folder" type="umbraco.loadOpenTasks, umbraco" />
  <add silent="false" initialize="true" sortOrder="2" alias="yourTasks" application="translation" title="Tasks created by you" iconClosed="icon-folder" iconOpen="icon-folder" type="umbraco.loadYourTasks, umbraco" />
  <!-- Custom entries appear here -->
</trees>