[Silverlight getting started series] embed Treeview into the accordion of Toolkit

The Silverlight toolkit provides an accordion control. How can I embed a Treeview into this accordion? As shown in the following figure:

It is actually quite simple:

 <  Usercontrol  X: Class  = "Accordintreeviewtest. mainpage"  
Xmlns  = "Http://schemas.microsoft.com/winfx/2006/xaml/presentation"  
Xmlns: x  = "Http://schemas.microsoft.com/winfx/2006/xaml"  
Xmlns: d  = "Http://schemas.microsoft.com/expression/blend/2008"  
Xmlns: MC = "Http://schemas.openxmlformats.org/markup-compatibility/2006"  
MC: ignorable  = "D"  
Xmlns: Controls  = "Http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"  
D: designheight  = "300"  D: designwidth  = "400"  Xmlns: Toolkit  = "Http://schemas.microsoft.com/winfx/2006/xaml/presentation/toolkit"  >  

 <  Grid  X: Name  = "Layoutroot"  Background  = "White"  >  
  <  Toolkit: accordion  Height  = "236"  Horizontalalignment  = "Left"  Margin  = "44,28, 0, 0" Name  = "Accordion1"  Verticalalignment  = "TOP"  Width  = "244"     >  
  <  Toolkit: accordionitem  Header  = "Menu 1"  >  
  < Toolkit: accordionitem. contenttemplate  >  
  <  Datatemplate  >  
  <  Controls: Treeview  Margin  = "1"  Borderthickness  = "0"  >  
  < Controls: treeviewitem  Header  = "Node1"  >  
  <  Controls: treeviewitem  Header  = "Node1.1"     />  
  <  Controls: treeviewitem  Header  = "Node1.2"    />  
  <  Controls: treeviewitem  Header  = "Node1.3"     />  
  </  Controls: treeviewitem  >  
  <  Controls: treeviewitem  Header = "Node2"  >  
  <  Controls: treeviewitem  Header  = "Node2.1 _ testlonglonglonglonglongnode"     />  
  <  Controls: treeviewitem  Header  = "Node2.2"     /> 
  <  Controls: treeviewitem  Header  = "Node2.3"     />  
  </  Controls: treeviewitem  >  
  </  Controls: Treeview  >  
  </ Datatemplate  >  
  </  Toolkit: accordionitem. contenttemplate  >  
  </  Toolkit: accordionitem  >  
  <  Toolkit: accordionitem  Content  = "Ontent2"  Header = "Menu 2"  > </  Toolkit: accordionitem  >  
  <  Toolkit: accordionitem  Content  = "Ontent3"  Header  = "Menu 3"  > </  Toolkit: accordionitem  >  
  < Toolkit: accordionitem  Content  = "Ontent4"  Header  = "Menu 4"  > </  Toolkit: accordionitem  >  
  </  Toolkit: accordion  >  
  </  Grid  > 
  </  Usercontrol  > 

But there is a problem, that is, the Treeview cannot be automatically strentch, the width and length cannot be consistent with the available length width of accordionitem, and cannot be automatically stretched. The next article solves this problem.

Build a prism custom region Adapter

In addition, if you are using prism, you can also write a regionadapter for this control. Please refer to this article and this article.ArticleIf you use MEF instead of unity, make the following changes:

Add system. Windows. Controls. toolkit and system. Windows. Controls. layout. toolkit references.

Add the export attribute:

[Export]
Public ClassAccordionregionadapter: regionadapterbase<Accordion>
{//...
}
 

Use the import constructor to inject:

[Importingconstructor]
PublicAccordionregionadapter (iregionbehaviorfactory regionbehaviorfactory)
:Base(Regionbehaviorfactory)
{
}
 

Finally, in bootstrapper:

 Protected     Override  Regionadaptermappings extends eregionadaptermappings ()
{
VaR Mappings  =     Base  . Assumeregionadaptermappings ();

Mappings. registermapping ( Typeof  (Accordion ),  This  . Container. getexportedvalue  <  Accordionregionadapter  >  ());
  //  Unity Method: This. Container. Resolve <accordionregionadapter> ());  
    Return  Mappings;
}