[Silverlight getting started series] there is no problem of stretching stretch after accordion is embedded in Treeview.

In the previous article, we implemented how to embed the accordion control provided in the Silverlight toolkit into a Treeview. However, the problem is that the Treeview cannot be automatically strentch, the width and length cannot be the same as the available width of accordionitem, and cannot be automatically stretched. How can this problem be solved? That is to set a grid. This control has a feature that will adapt to the available size. We will add the grid:

 <  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  >  
  <  Grid  Background  = "Red"  Loaded  = "Grid_loaded"  >  
  < 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  >  
  </  Grid  >  
  </  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  > 

There is an event later, in *. XAML. CS:

Private VoidGrid_loaded (ObjectSender, routedeventargs E)
{
Grid=SenderAsGrid;
Grid. Width=Accordion1.actualwidth- 5;
}
 

Although ugly, do you have a better solution?