c# - How do I bind an ObservableCollection to an AvalonDock DocumentPaneGroup? -

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i need load collection of items documents in avalondock 2.0. these objects inherit abstract class, want render frame inside document depending on subclass are.

this xaml:

<ad:dockingmanager background="gray" documentssource="{binding path=openprojects}"          activecontent="{binding path=currentproject, mode=twoway}">     <ad:dockingmanager.documentheadertemplate>         <datatemplate>             <textblock text="{binding path=openprojects/name}" />         </datatemplate>     </ad:dockingmanager.documentheadertemplate>     <ad:dockingmanager.layoutitemtemplate>         <datatemplate>             <grid>                 <grid.resources>                     <datatemplate datatype="{x:type vm:subclassaviewmodel}">                         <frame source="pages/subclassaproject.xaml" />                     </datatemplate>                     <datatemplate datatype="{x:type vm:subclassbviewmodel}">                         <frame source="pages/subclassbproject.xaml" />                     </datatemplate>                     <datatemplate datatype="{x:type vm:subclasscviewmodel}">                         <frame source="pages/subclasscproject.xaml" />                     </datatemplate>                 </grid.resources>             </grid>         </datatemplate>     </ad:dockingmanager.layoutitemtemplate>     <ad:layoutroot>         <ad:layoutpanel>             <ad:layoutdocumentpanegroup>                 <ad:layoutdocumentpane>                  </ad:layoutdocumentpane>             </ad:layoutdocumentpanegroup>         </ad:layoutpanel>     </ad:layoutroot> </ad:dockingmanager>

so far i've achieved show many documents items in openprojects collection, can't seem show inside each document.

plus, don't know if i'm using activecontent properly: want assign currentproject viewmodel assigned on current active document.

thank time.


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